US496465A

US496465A - Structural iron form

Info

Publication number: US496465A
Authority: US
Publication date: 1893-05-02
Anticipated expiration: 1910-05-02

Description

No Model.)

T. 8. WHITE. STRUCTURAL IRON FORM. No. 496,465. Patented May 2,-1893.

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TIMOTHY SIDNEY WHITE, OF NEW BRIGHTON, PENNSYLVANIA.

STRUCTURAL IRON FORM.

SPECIFICATION forming part of Letters Patent No. 496,465, dated May 2, 1893.

Application filed February 20,1893. Serial No. 463,048. (No model.)

To all whom it may concern.-

Be it known thatl, TIMOTHY SIDNEY WHITE, a citizen of the United States, residing at New Brighton, in the county of Beaver, in the State of Pennsylvania, have invented new anduseful Improvements in Structural Iron Forms; and Ido hereby declare that the following is a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains to use the same.

Ordinary rolled structural units are of various forms in cross section, according as they are to be used for columns, beams, &c.,

and they are commonly united by rivets to form the different structural members for which they are intended. They usually consist of a central body or web, secondary webs extending in the same or a different direction from the margins, respectively, of the central web, and sometimes one or two uniting flanges making an angle with the secondary web or webs, the whole being formed integrally. In application, Serial No. 433,651, filed May 20, 1892, allowed October 7, 1892, Ihave described a unit composed of a plane central web having two uniting flanges connected to its margins, respectively, by oppositely extending secondary webs making an angle with both the central web and the connected flange. Such forms may be rolled with great facility and they readily lend themselves to the formation of members that have heretofore had no common unit, or that have been made up by uniting at considerable cost a greater number of units than are now required, or have been formed from units that were individually difficult to roll; and further, the use of the novel units is not confined to forms heretofore common, but they may be employed to form members of various forms never before used, so far as I am aware.

The present invention, as will appear, relates to forms andfeatures not set forth in said application.

In the accompanying drawings,-Figure 1 shows the principal unit in cross section.- Fig. 2 shows the same unit combined with a like unit to form a structural member. Fig. 3 shows a more complex member formed by adding dissimilar parts to the two units of Fig. 2. Fig. 4 shows a still more complex member formed by adding to the member of Fig. 3.

Figs. 5 and 6 illustrate slight modifications in the manner of connecting the principal units of the members.

Inall the figures the principal unit consists of a plane central web, A, of uniform width, having at its opposite edges oppositely extending, plane, secondary webs, B, one of which is provided at its outer edge with an integral flange, (3, approximately parallel to the main Web. When a perfectly balanced section is required, the flangeless web is made thicker than the remainder of the unit. To form a column, beam, or the like, two of the units are rigidly joined by bringing the two flanges together in registering position (Fig. 2) and uniting them by rivets, bolts, or any other suitable means. Where greater strength is desired, a plate or web D is placed between the two flanges in'position to bisect the space between the two main webs, and the three are then united as before. This additional web preferably has at its free margin one or two flanges D that lie in the plane of the secondard webs B. and one or both such flanges may be made integral with the plate or may be common angle irons secured to the plates margin by such means as are employed in joining the principal units. In case still greater strength is required it may be readily obtained without materially increasing the size of the member, by securing to the webs B and the flanges D a plate F, as indicated in Fig. 4.

When the member is intended to lie in such position that it would form a trough which might retain water, to the injury of the work, the uniting flanges are separated by small thimbles 0r washers G, encircling the rivets between the flanges as shown in Fig. 5. And in the forms of Figs. 2,3, 5 lateral yielding of the units may be guarded against by preferably cast separators H against the ends of which the Webs are drawn by bolts 0r rivets I, inserted at suitable intervals. Adding to the primary unit a second flangelike thefirst but upon the opposite side of the unit, as in the unit described in my said application, Serial No. 433,651, would not in any way interfere with the addition of the other parts, but for certain uses the presence of such second flange is undesirable and I therefore wish in addition to claims not depending upon the presence or absence of such flange to protect this specific form.

Having now fully described my invention, what I claim is 1. An integral rolled iron unit consisting of a plane central web having at its opposite margins, respectively, oppositely extending secondary webs one only of which is provided with a flange for uniting the unit to other units.

2. The combination with a rolled iron unit consisting of a primary central web having at its margins oppositely extending secondary Webs one of which is provided with a flange, of a second unit like the first having its secondary webs in the plane of the secondary webs of the first and its flange registering with and rigidly connected to the flange of the first.

3. The combination with a unit consisting of a plane central web having at its edges oppositely extending secondary webs one of which is provided with a flange, of a like unit oppositely turned, a plate lying between the two registering flanges and bisecting the space between the primary webs, and means for rigidly uniting the two flanges and the interposed plate.

4. The combination with the two like units each consisting of a central web having at its edges oppositely extending secondary webs, one provided with a flange, of means for rigidly uniting the flanges, and a plate rigidly secured to, and spanning the space between, the secondary webs upon the side opposite said flanges.

5. The combination with the unit consisting of the central web having at its edges oppositely extending secondary webs, one provided with a uniting flange, of a like unit having its flange registering with, and its secondary webs in the planes of, like parts of the first,

.the flanged plate lying between said flanges and bisecting the space between the main webs, and the plate spanning said space and rigidly fixed to the lower secondary webs and to the flange or flanges of said flanged plate.

TIMOTHY SIDNEY WHITE.

\Vitnesses:

F. DEG-Nan, CHAS. F. BOND.