US1937608A - Scaffolding - Google Patents

Description

Dec. 5, 1933. R. J. ToBlN ET AL 1,937,608

scAFoLDING Y l Filed March 31, 1932 2 Sheets-Sheet 1 ATTORNEYS Dec. 5, 1933. R 1 TOBlN Er AL 1,937,608

SCAFFOLDING y Filed March 3l, 1932 2 Sheets-Sheet 2 1mm lll ATTORNEYS Patented Dec. 5, 1933 UNITED STATES PATENT OFFICE SCAFFOLDING tion of Delaware 'Application March 31, 1932. Serial No. 602,222 4 claims. (ci. 304-10) The invention relates to scafolding, vsuch as used for supporting workmen working on the sides of a building.

An object of the invention is to provide a 5 scaffolding structure which is easy to put up and take down for different jobs.

Another object of the invention is to provide a scaffolding structure having standard parts which may be used over and over again for different jobs.

Another object or" the invention is to provide a scaffolding which is strong and safe to use and inexpensive to manufacture and use.

Other objects will be apparent 'from the following description and claims when considered with the accompanying drawings, in which Fig. l is a plan view illustrating the scaffolding in position;

Fig. 2 is a side elevation of a. building illustrating the use of the scaffolding according to the invention;

Figs. 3, 4 and 5 are details illustrating the construction of the scaffolding; and

Figs. 6 and 7 illustrate a preferred construction.

various details will be identified by specific names for convenience, but they are intended to be as generic in their application as the art will permit.

Like reference characters denote like parts in 'the several gures of the drawings.

In the drawings accompanying and forming part of this specification, certain specific disclosure of the invention is made for purposes of explanation, but it will be understood that the 'details may be modified in various respects without departure from the broad aspect of the invention.

Referring to the drawings, the scaffolding comprises in general a plurality of columns indicated by 10, spaced from the building and resting on the ground, and a plurality of cross members 11 supported by the columns 10 and by the building. Boards or planks l12 rest upon the cross members and railings are indicated by 13 and 35.

The several columns are identical in construction so it is only necessary to describe one in detail. Each column comprises a lower section 14 and a. plurality of upper sections 15. The several sections may be of the same height or different heights. For example, the lower section 14 may be four feet in length and the upper sections may be made in six foot lengths. The sections 14 and 15 are preferably made from heavy pipe.

Each column section 15 may be provided with In the following description and in the claims,

a coupling sleeve 17 permanently secured to the upper end thereof by welding, pipe threads or the like. For example, the sleeve may be ten inches in length and overlap the section to which it is secured by three inches, leaving seven inches for the upper section.

In the lower sections 14 a plurality of holes, indicated-by 21, may be provided, through which pins, indicated by 22, may be passed to position the upper section 15 which telescopes down withc5 in the lower section 14, as indicated. This is to take care of unevenness on the ground as will be hereinafter described more in detail.

A- base plate V18, preferably of wood, is connected to the bottom of each lower section 14. w The plate 18 may` have a recess 20 in which the end of the lower section 14 seats. A plurality of bracket members 19 may be fastened to the section 14 and to the base plate 18 for strengthening purposes, as indicated.

In one form of the invention the cross members 11 are connected to the several upper column sections by collars 24 between Ithe sleeves 17 and fixed collars 23. 'I'he latter are permanently secured to the pipe sections as by welding or the like. The collars 24 are provided with ears, indicated by 25 in Fig. 4, through which bolts 26 pass, these bolts also passing through the cross members 11 which are secured to the outer sides of the ears 25. The bolts clamp the collars 24 in position. If desired, the connection may be slightly loose to permit adjusting the spread of the cross members 1l.

The cross members 11 are preferably made of heavy steel and are disposed in a vertical plane to give greater strength. Toward the ends they are bent, as indicated by 27, and are provided with depending flanges 28. These flanges are disposed in holes 31 in brackets 29. Each bracket 29 (Fig. 5) is made of heavy angle steel and is 95 provided with a plurality of keyhole slots 32 in addition to the circular hole A31. These brackets are applied to the wall of the building in the proper place, being secured thereto by a plurality of vnails 33 passing through the keyhole slots 100 as indicated.

Each of the upper sections 15 may be provided with one or more clips for supporting the railing bars. -Upper clips are denoted by'34, these sup-.- porting the upper railing bars 13. If4 desired, 105 additional clips, indicated by 134, may be provided .for supporting the lower railing bars 35. Theseclips 34 and 134 preferably form complete loops and are secured at both ends to the sections 15, providing maximum strength. 110

ltie members between the columns.

For assembling the scaffolding, the lower sections 14 are telescoped over the rst upper sec; tions 15, and the pins 22 inserted through the proper holes to take care of any unevenness there may be in the ground, so that the rst level of cross members 11 will be in a horizontal plane. The columns will be positioned the proper distance away-from the house and the first level of cross members 11 may be secured to the upper ends of the rst sections 15 and also secured to the building by the brackets 29.

Between the brackets 29 and the building there may be interposed. strips indicated by 129 of shingle or other material to protect the underlying shingle surface from damage. It will be understood that these temporary strips 129 will be removed when the brackets 29 are removed in taking down the scaffolding.

The spread of each pair of cross members 11 will lbe determined by the distance of the column from the building. After the first sections 15 of the several columns are mounted, as just described, the next sections 15 and next level of cross members 1l may be placed in the' position shown.

The planks 12 may then be placed upon the first level of cross members 1l, the railings '13 and 35 may be placed in position in the clips 34 and 134 and the scaffolding is ready to be used.

It will be understoodthat the shingling below the first plank level will be done from the ground and that above the rs't plank level will be done from the first plank level, etc. The plank levels will preferably not be located/greater than six feet apart so that any portion of the entire suraface of the building can be worked upon from some one of the plank levels. It will be understood that the scaffolding may be built up as the shingling proceeds to any desired height.

In case it is desired to obtain a greater spread between the transverse members, the construction illustrated in Figs. 6 and 7 may be used. In these figures the upper section vis denoted by 51 andv the transverse members by 56. A collar made 'up' of segments 52 and/53 may be securedin any desired manner to the upper end of the upper section 51 either directly to the section as illustrated, or to the connecting sleeve 58. The segments 52 and 53 may be secured to the column section by rivets, welding or anyl other desired way.

These segments are provided with spaced ears 54 which may more or less loosely receive the ends of the transverse members 56 and through which thev connecting bolts 55 pass. tain latitude in arranging the spread of the transverse members 56.

Thus a scaffolding construction has been described .which is easy to put up and take down, which is made up of a minimum number of standard parts which may be used from one job to another and which is strong, safe and inexpensive. The columns are all supported directly from the ground and a large part of the weight is taken directly by the columns. Each column is self bracing and it is not necessary to provide any 'I'he distance i between the building andthe columns may be This allows a cer-l varied by varying the spread of the cross members. the connection between said cross members have been disclosed and are pointed out in thel annexed claims, it will be understood that various omissions, substitutions and changes `may be made by those ,skilled in the art without departing from the spirit of the invention.

What is claimed is:

1. In scaffolding, a vertical column adapted to be spaced from a supporting structure, apair loi? horizontal beam members relatively loosely secured to said column so they can be spread apart different distances, a connecting bracket for each beam member secured to the supporting structure and having a horizontal attaching ear -provided with a hole, said beam members having downwardly projecting ends disposed in said holes. v

2. In scaffolding, a vertical column adapted to be spaced from a supporting structure, a pair of longitudinal beam members, means for loosely connecting said beam members to said column to, permit said beam members being spread apart at different angles, a connecting member for each beam member adapted to be secured to said structure, and means connecting said beam members and connecting members together to permit said beam members tov assume diierent angles with said structure.

3. In scaffolding, a vertical column adapted to be spaced from the supporting structure, a pair of horizontal beam members relatively loosely secured -to said column so they can be spread -apart different distances, and a connecting brack- 4. In a scaffolding arrangement, a vertical column comprising a lower pipe section anda plurality of upper pipe sections, the lower pipe section being suilciently large to accommodate within itself the next upper pipe section, each upper pipe section having a connecting sleeve permanently secured to the outsideA of the top thereof and adapted to receive the next upper pipe section, the pipe sections above the second telescoping within said connecting sleeves of the next lower sections, an enlarged base plate secured to said lower section, a pin, said lower section having a plurality of openings through which said pin may be passed to position the second section, a collar secured around each section and,

having attaching ears, horizontal. beam members, bolt means through said attaching ears and said beam members whereby said beam members may be spread different distances apart to position the column a proper distance from the supporting structure, and connecting brackets secured to the.

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