US841733A - Folding scaffolding-bracket. - Google Patents

Description

PATENTED JAN. 22, 1907.

w. A. SMYRK.

FOLDING SGAFFOLDING BRACKET. APPLICATION FILED 0016. 1906?.

THE uanms P511025 :0, WASHINGTON, b. c

UNITED STATES PATENT: OFFICE. WInLI M- SMYRK, OF NEW MALDEN, ENGLAND. v FOLDING SCAFFQLDING-BRACKET Specification of Letters Patent.

I V Patented Jan. 22, 1907.

Application filed Octobert, 1906. Serial No. 337.768.

To all whont it may concern.-

Be it known that I, WILLIAM ADOLPHUS SMYRK, a subject of the King of England, residing at New Malden, in the county of Surrey, in the Kingdom of England, have invented a certain new and useful Improvement in Folding Scaffolding-Brackets, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification.

My objects are to provide a scaffoldingbracket that allows of being erected. by unskilled persons without the aid of ropes and which can be folded and whereby the necessity of cutting into the brickwork for repairing buildings is avoided.

Figure 1 is a vertical section of a wall and iron stanchion with a number of my superposed scafiolding-brackets secured in position. Fig. 2 is an end view of the bracket. Fig. 3 shows a hinged stay for the bracket. Fig. 4 shows the bracket in its folded condition for transit, and Fig. 5 shows the preferred construction of my hinged standard.

My improved scaffolding-bracket and connection comprises a horizontal limb or supporting-rail 1, preferably made of T-iron,

aving its inner end 2 strengthened to form a smooth-faced block, with a ridge or stud 3 adapted to hold said rail securely in position when placed 'ina corresponding hole or a socket in the wall. Near the outer or free end of the rail is hinged a strut or stay 4, which can be made of channel-iron, or two flat bars may be bolted together and suitably bent to take over the web of its T-rail and be pivotally secured thereto at 5, while the pending end 6 is made to fit over and rest on the next lower rail or on a corbel 7, pro vided for this purpose. The corbel can be made and secured in the same manner as the ends of the rail 1. l I

On the upper flange of the rail is seated a short folding-down guard-post or standard 8, to which a guard-rail 9 can be fixed. According to the construction shown in the Figs. 1, 2, 3, and 4.- of the accompanying drawings, the standard 8 is made of round iron of the requisite strength and its lower portion is drawn through a hole 10 in the web of the rail 1 and then bent so as to form a rearwardly-curved loop 11, adapted to provide a firm base for said standard and keep the same normally in-itsupright position. In order to insure greater rigidity for the guard-post, I prefer tobifurcate the lower prong, through which a bolt can be secured in the web of the rail 1, such as I have shown at Fig. 5.

With each rail I preferably use a socket 12, which is permanently fixed in or to the wall or to the iron skeleton framework of a building, as shown. These sockets are placed at suitable levels and intervals and at right angles with the walls, so that their mouths are at the face of the building or nearly flush with any internal walls thereof, and so serve in receiving and sustaining the inner ends 01' the rails 1. The interior of the socket 12 is formed with a groove or recess 13 to fit and retain the ridge or strut 3 of the rail.

After a rail has been introduced in its socket a wedge or quoin 14 is placed between the rail and that side of the socket which is at the back of the ridge or stud 3. hen the has been placed in position, corbels inmost cases will not be required, as by placing the rails one over the other in the perpendicular direction the lower rail will serve to support the struts of those above.

The guard-rails 9 may be fastened to the standards 8 in any approved mannerfor example, by having a screw portion at the upper end of the latterfitted with two nuts 15 and 16, between which the guard is held.

The sockets can be placed sufliciently back from the face of the walls as to allow of the aperture caused by them to be faced to match the masonry, or suitable stoppers can be provided, which can be treated in an ornamental way.

The scaflolding which these rails are pro vided to uphold is arranged in a similar manner to the stage of an ordinary bricklayers scaffold, with the addition of an extra ledger 17 to support the wall end of the putlogs 18, over which are placed the boards or planks 19, or the supporting-rails may be placed close enough together to sustain the scaffoldpoards without the use of ledgers and putogs.

Although I have shown the rail of T-iron, the same may equally well be made of iron of any other section, such as flat bars placed on edge or of channeliron, provided the strut or end of. the same and form an eye, at each first horizontal row or tier of supporting-rails materials.

stay is made to suit the part to which it is pivoted, so that it can be folded against the rail when not in use, or I may use for the same purpose any convenient combination of Other minor changes in the construction, arrangement, and combination of the several parts of my scaffolding-bracket can be made and substituted for those herein shown and described without in the least departing from the nature and principle of my invention.

What I claim, and desire to protect by Letters Patent of the United States, is-

1. A folding scaflolding-bracket comprising in combination a horizontal limb with an inner stud, a pivoted diagonal strut, and a foldable vertical guard-post and a socket to engage the said limb, as set forth.

2. In a folding scaffolding-bracket, the

combination of the horizontal limb of T-iron disposed with its web downward, a channeliron strut hinged to the web of said limb, an upright bifurcated guard-post ivoted with its forked end to said rail near tl ie free end of same and a wall-socket for the retention of the horizontal limb, as described.

3. In a scafioldin -bracket, a horizontal limb of T-iron a soli inner end and stud on said T-iron, a channel-iron strut hinged with its flanges to the web. of said T-iron, a bifurcated lower end formed to said strut, and a foldable vertical guard-post above the flanges of the T-iron.

W. A. SMYRK.

Witnesses:

H. D. JAMESON, F. L. RAND.

Images