US2818308A - Sectional scaffold - Google Patents

Description

Dec. 31, 1957 c. H. WILLIAMS 2,818,308

SECTIONAL SCAFFOLD Filed Oct. 14, 1954 2 Sheets-Sheet 1 "I'll",

v Cllfford h. W////ams INVENTOR.

Ari/1111111111111. wrllllllllllllzli M SECTIONAL SQAFFOLD m 4 INVENTOR.

N Clifford H. Williams United States Patent i SECTIONAL SCAFFOLD Clifford H. Williams, Tucson, Ariz.

Application October 14, 1954, Serial No. 462,221

4 Claims. (Cl. 304-2) This invention relates generally to building construction and more particularly to a novel sectional scaffold.

The primary object of the present invention resides in the provision of a novel sectional scaffold which may be easily used and reused in the erection of various buildings and which is adapted to provide a workman with a stable platform at a desired height while providing a maximum space for allowing effective operations by the various building trades through the elimination of braces immediately adjacent the building being constructed.

A further object of the invention resides in the provision of a sectional scaffold which includes a novel telescoping member thereby enabling the scaffold to be more easily stored when not in use, which is capable of supporting a platform formed of planks or the like, of a selected width.

An advantage of the invention resides in the elimination of brackets usually used in scaffold construction while also eliminating the usual inward tipping of a scaffold toward a wall being constructed. The invention is further advantageous in that all parts thereof form an integral part of the scafiold construction.

A further object of the invention resides in the provision of novel means for utilization in superposing support members of the scaffold, one above another, in a convenient manner.

Still further objects and features of this invention resides in the provision of a sectional scaffold that is strong and durable, simple in construction and erection, and which is highly eflicient in operation.

These, together with the various ancillary objects and features of the invention which will become apparent as the following description proceeds, are attained by this sectional scafiold, a preferred embodiment of which has been illustrated in the accompanying drawings by way of example only, wherein:

Figure 1 is a perspective view showing a portion of the sectional scaffold in an erected state with superposed portions of the scaffold being shown in phantom lines;

Figure 2 is an exploded perspective view of one of the support members comprising a main structural component of the invention;

Figure 3 is a vertical sectional view as taken along the plane of line 3--3 in Figure 1; and

Figure 4 is a sectional detail view illustrating the manner in which the telescoping member is received in the upper brace and further illustrating the pins for use in supporting superimposed portions of the scaffold.

With continuing reference to the accompanying drawings wherein like reference numerals designate similar parts throughout the various views, reference numeral is used to designate a section of a wall or building which is shown schematically and upon which such further construction operations as are necessary must be undertaken. As the building 10 increases in height, there is necessitated a suitable scaffold so that the various craftsmen may have access to that portion of the building upon which they are working. Accordingly, the scaffold gen- 2,818,308 Patented Dec. 31, 1957 ICC erally designated by reference numeral 12 and comprising the present invention is designed to provide the craftsman with a maximum of freedom of movement ad acent the building or wall 10.

The sectional scaffold 12 is constructed from a plurality of spaced supports, each of which are designated by reference numeral 14 and which consist of outer tubular standards 16 having eyes as at 18 and 20 welded or otherwise attached thereto and which may be provided with pins as at 22 at the upper end thereof for receiving the hollow lower ends of a superimposed standard 16 of the support 14 positioned thereabove.

The support 14 is also provided with an inner and comparatively short tubular standard 24 and a tubular lower cross member 26 is terminally welded to and extends between each of the standards 16 and 24.

Welded to and rising from the lower cross member 26 is a center standard 28 having eyes 30 and 32 welded or otherwise attached thereto. Welded to the upper end of the standard 28 and to the upper portion of the standard 16 of each of the supports 14 is an upper brace 36 of tubular configuration and adapted to telescopingly receive the arm 38 of a substantially L-shaped member 40 therein. Welded at one end to a center portion of the center standard 22 is a channel shaped guide 42 which is welded to and carried by the upper end of the standard 24. A butt plate 44 is provided at the end of the channel guide 42 and the channel guide 42 is adapted to guidingly receive and support therein the lower end of leg 46 of the L-shaped member 40. The leg 46 is of tubular construction and is adapted to receive therein pin 48 which may be, if desired, detachably positioned within the leg 46 and held by means of pin 50.

An aperture 52 is formed through the upper brace 36 and is adapted to receive a pin 54 therethrough, see Figure 4, which also extends through the aperture 56 in the arm 38 of the L-shaped member 40.

The pins 22 of each of the supports 14 are apertured for reception of securing pins, not shown, the apertures being generally designated by reference numeral 58. These securing pins, not shown, are adapted to extend through apertures as at 60 in the lower ends of the standards 16.

In erecting the scaffold 12, diagonally extending cross braces 62 and 64 are alternatively secured to the eyes 18 and 20 and the eyes 20 and 18, respectively, of adjacent supports 14 while diagonally extending braces 66 and 68 are secured to eyes 32 and 30, and 30 and 32 of adjacent supports 14.

Received on the upper brace 36 and that portion of the arm 38 not telescopingly received in the upper brace 36, are the planks 70 forming a platform on which the workmen may stand, deposit materials, and engage in the necessary operations to advance the construction of the building. It is noted that the planks 70 are restrained from transverse movement by the support 16 and legs 40. Further, no cross braces extend over the portion of the scaffold adjacent the building 10 thereby enabling the craftsmen to have greater freedom of movement.

The butt plate 44 serves to limit the outward movement of the L-shaped member 48 in conjunction with the pin 44 and it is noted that a superposed support 14 may be positioned with the standards 16 and 24 of the superposed support 14 overlying the pins 22 and 48 and with suitable fasteners extending through the apertures 60 in the standards 16 and through the apertures 60 and 58 in the standards 16 and pins 22 and through apertures 72 and 74 in the standards 24 and pins 48, respectively.

From the foregoing, the construction and operation of the device will be readily understood and further explanation is believed to be unnecessary. However, since 3 numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction shown and described, and accordingly all suitable modifications and equivalents may be resorted to, falling within the scope of the appended claims.

What is claimed as new is as follows:

1. A sectional scaffold comprising spaced supports, each of said supports including an outer relatively tall standard, an inner relatively short standard, a lower cross member interconnecting said outer standard and said inner standard, a center standard rising from said cross member, a hollow upper brace secured to and extending between said center standard and said outer standard, a channel shaped guide carried by said inner standard and secured to said center standard, a substantially L-shaped telescoping member having a leg and an arm, said leg being received in said channel shaped guide, said arm being telescopingly received in said upper brace, transverse braces interconnecting the outer standards and the center standards of said spaced supports, and a platform supported by and extending between the arms and upper braces of said spaced supports.

2. A sectional scaffold comprising spaced supports, each of said supports including an outer relatively tall standard, an inner relatively short standard, a lower cross member interconnecting said outer standard and said inner standard, a center standard rising from said cross member, a hollow upper brace secured to and extending between said center standard and said outer standard, a channel shaped guide carried by said inner standard and secured to said center standard, a substantially L-shaped telescoping member having a leg and an arm, said leg being received in said channel shaped guide, said arm being telescopingly received in said upper brace, transverse braces interconnecting the outer standards and the center standards of said spaced supports, and a platform supported by and extending between the arms and upper braces of said spaced supports, said legs, said outer standards and said inner standards being of hollow tubular construction, pins secured to the upper ends of said legs and said outer standards, and a pair of vertically superposed supports positioned on said first recited spaced supports and over said pins.

3. A sectional scafiold comprising spaced supports, each of said supports including an outer relatively tall standard,

an inner relatively short standard, a lower cross member interconnecting said outer standard and said inner standard, a center standard rising from said cross member, a hollow upper brace secured to and extending between said center standard and said outer standard, a channel shaped guide carried by said inner standard and secured to said center standard, a substantially L-shaped telescoping member having a leg and an arm, said leg being received in said channel shaped guide, said arm being telescopingly received in said upper brace, transverse braces interconnecting 'theouter standards and the center standards of said spaced supports, and a platform supported by and extending between the arms and upper braces of said spaced supports, said transverse braces being detachably secured to said outer standards and said center standards.

4. A sectional scaffold comprising spaced supports, each ofsaid supports including anouterrelatively tall standard, an inner relatively short-standard, a lower cross member interconnecting said outer standard and said inner standard, a center standard rising from-said cross member, a hollow upper brace secured to and extending between said center standard and said'outer standard, a channel shaped guidecarried by said inner standard and secured to said center standard, a substantially L-shaped telescoping member having a legand an arm, said leg being received in said channel shaped guide, said arm being telescopingly received in said upper brace, transverse braces interconnecting the outer standards and the center standards of said spaced supports, and a platform supported by and extending between the arms and upper braces of said spaced supports, said transverse braces being detachably secured to said outer standards and said centerstandards, said legs, said outer standards and said inner standards being of hollow tubular construction, pins secured to the upper ends of said legs and said outer standards, and a pair of vertically superposed supports positioned on said first recited spaced supports and over said pins.

References Cited in the file of this patent UNITED STATES PATENTS 2,289,141 Oertle July 7, 1942 2,435,171 Weisz Jan. 27, 1948 2,561,938 Meng et al. July 24, 1951

Images