US714101A - Scaffolding. - Google Patents

Description

110. 714,101. Pateng u v. 1-8. 1902.

F. 111. 01111111. T SCAFFOLDING.

(A'yplication filed Sept. 22 1902.)

(No llodol.)

WITNESS ,Attomey mom-1.1mm. msnluamu. n. c"

UNITED STATES FLORANOE MEREDITH DAVID, OF NEASDEN, ENGLAND.

SCAFFOLDING.

SPECIFICATION forming part of Letters Patent No. '714,101,'dated November 18, 1902. Application filed $eptember 22, 1902. Serial No. 124,393. (No model.)

T at whom it may concern:

Be it known that I, FLORANCE MEREDITH DAVID, contractor, of The Grange, Neasden,

in the county of Middlesex, England, have termed a double intersecting socket, shoe,

or band for holding together the standard and ledger at an obtuse angle and for supporting the weight of the planks placed thereon and their load.

The device of my invention maybe formed of two tubular sockets of square, round, or other cross-sectional form rigidly secured together, the passages of the two sockets being mutually inclined in direction so as to lie across one another at an obtuse angle at one side and an acute angle at the other corresponding to the angles to be made by the standard crossing the ledger, which on being passed through the said sockets and raised to the erect position will be self-binding in the sockets, and so become automatically fixed, so as to prevent the shoe from slipping down under the weight of the ledger or planks or their load.

My invention will be clearly understood by reference to the accompanying drawings.

Figure 1 represents afront view of the device, showing a portion of the standard and ledger in place; and Fig. 2, a top View of the sockets alone.

In both views like parts are designated by the same letters of reference.

I) c are the two intersecting sockets or shoes, and ad the standard and ledger, respectively, traversing the passages of the said shoe.

The sockets or shoes I) and c are mutually inclinedthat is to say, lines passing through their exact centers will not make right angles. The openings within the shoes are sufliciently large to make a loose fit with the standards and lodgers, which ordinarily may slide freely therethrough. By diminishing the angle e formed by the standard and ledger by making them assume a position more at right angles to one another they become automatically fixed, thus securing the desired height of the scafiolding as measured from the upper side of the ledger d in a vertical line to the floor. Round poles, quartering, or any other cross-section is equally applicable. By increasing the angle e formed by the standard'and ledger the intersecting socket descends the standard a, thus enabling a scaifold to be lowered without dismantling and rerecting it. The scaffold-boards are then placed across or at right angles to the two supporting lodgers, thus forming the platform or scaffolding.

The double sockets b 0 (shown in the drawings) are somewhat in the form of a band or bands meeting in the center. It will be understood, however, that each socket may be tubular, in which casethe poles will be more or less separate, according to the thickness of the dividing portion between the two sockets.

Some of the advantages obtained by the use of my socket are that the height of a scaffold may be readily adjusted by placing the sockets in the desired position and that the scaffolding may be readily lowered to any desired position without dismantling or removing the workmens tools. A further advantage is that the ledgers' and standards are firmly locked together to resist lateral strains. Side or diagonal braces are therefore not necessary.

Having now particularly described and ascertained the nature of my saidinvention and in what manner the same is to be performed, I declare that what I claim is 1. In a socket for scaffolds, the combination with the sockets or shoesb and c, secured at an obtuse angle together and so arranged that the ledger (1 will be supported upon at substantiallyrightangles,substantiallyas the vertical standard a, substantially as dedescribed. 1 scribed. This specification signed and witnessed 2. In a socket for scaffolds, the cornbinathis 25th day of August, 1902. 5 tion with the sockets or shoes I) and c, rigidly FLORANOE MEREDITH DAVID.

secured together side by side at an obtuse an- Witnesses: gle, and the standard a and ledger d, Within ARTHUR OARRIOK,

the said socket, and arranged when locked HENRY LLEWELLYN WESTON.

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