US2826419A

US2826419A - Elongated composite bars

Info

Publication number: US2826419A
Application number: US566161A
Authority: US
Inventors: Charles B Francis; Bessie R Porter; Bank Moxham National
Original assignee: Individual
Current assignee: Individual
Priority date: 1950-02-14
Filing date: 1956-02-17
Publication date: 1958-03-11
Anticipated expiration: 1975-03-11

Description

March 11, 195s v CBFRANQS Em *2,826,41

ELONGATED COMPOSIT BARS original Filed Feb. 14, 195o K /V VEN 70H3.' CHARLES FHA/V675 0/70' RAL PH POI-' TE@ deceased) @Ess/E w. P0@ TER' and k6@ MXHAM /VA 7'/ Oft/AL BAN/f, ,Emea/0m.

United States Patent O ELONGATED COMPOSITE BARS Charles B. Francis, Pittsburgh, and Ralph B. Porter, de-

ceased, late of Johnstown, Pa., by Bessie R. Porter and Moxham National Bank, executors, Johnstown, Pa.

Original application February 14, 1950, Serial No. 144,154, now Patent No. 2,749,609, dated June 12, 1956. Divided and this application February 17, 1956, Serial No. 566,161

4 Claims. (Cl. 279--2) This invention relates to elongated composite bars and more particularly such bars for use in the continuous casting of hollow articles from molten steel as `disclosed in our copending application, Serial No. 144,154, tiled February 14, 1950, now Patent No. 2,749,609, dated June l2, 1956 of which this application is a division. In the handling of hollow metal articles it is often necessary to support the article on a bar which must subsequently be removed. This is often ditlicult to accomplish.

It is an object of our invention to provide an elongated composite bar which may be readily assembled and disassembled within the hollow article it supports.

This and other objects will be more apparent after referring to the following description and attached drawings, in which:

Figure 1 is a View, partly in section, of the bar of our invention;

Figure 2 is a sectional view of a collapsible former bar in collapsed position; and

Figure 3 is a view, similar to Figure 2, but showing the parts of the bar in expanded position.

Referring more particularly to the drawings, the reference numeral 2 indicates the composite bar of our invention. The bar 2 consists of a pair of spaced apart crown sections 60 having their outer surfaces 62 shaped to correspond to the interior shape of the hollow article T being formed or supported. The inner surface of each of these crown sections has a portion 64 which extends inwardly away from the other crown section adjacent each end of the outer surfaces so that a space 66 is provided between the crown sections which space widens as it nears the center of the bar. An under-cut portion 68 is provided on the crown sections 60 on the inner surface thereof adjacent each of the portions 64. The under-cut portion 68 of each crown section 60 is connected by a relatively straight portion 70. A wedge shaped section 72 is provided Vin each of the spaces 66. Each of these wedge shaped sections has a pair of projections 74 thereon which are adapted to extend into the under-cut portions 68. The inner portion of the sections 72 is straight. A diamond shaped section 76 is provided at the center of the bar. When it is desired to fasten a plurality of bars 2 end to end one end of section 76 will be provided with a projection 76et and the other end provided with an opening 76b to receive the projection 76a.

In use the parts are rst assembled as shown in Figure 2, the section 76 is then rotated on its axis to the position shown in Figure 3 which forces the projections 74 into the under-cut portion 68 to lock the parts together. When dismantling the bar, section 76 is rotated TCC articles which comprises a pair of spaced apart crownl sections, the outer surface of each of said crown sections being shaped to correspond to the interior shape of the `hollow article, the inner surface of each of said crown sections having a portion extending inwardly away from the other crown section adjacent each end of the outer surface to provide a space between the crown sections which widens as it nears the center of the bar, an undercut portion on said inner surface adjacent each of the first named portions, a portion on each crown section connecting the undercut portions, a pair of wedge shaped sections one in each of said spaces, each of said wedge shaped sections having a pair of projections thereon adapted to extend into the undercut portions on each of said crown sections, and a diamond shaped section in the center of said bar, said diamond shaped section forcing the said projections into said undercut portions to lock the parts together when it is turned so that its four corners bear against the crown and wedge sections.

2. An elongated composite bar for use with hollow articles which comprises a pair of spaced apart crown sections, the outer surface of each of said crown sections being shaped to correspond to the interior shape of the hollow article, a pair of spaced apart sections in the space between the crown sections one at each end thereof, interlocking connections between each of the pair of sections and both of the crown sections, and a fifth section in the center of said bar, said fifth section being turned to lock the sections of said bar together.

3. An elongated composite bar for use with hollow articles which comprises four solid interlocking sections connected to form a central generally rectangular cavity, and a bar having a non-circular shape in said cavity, said bar being turned to expand and lock the sections together, said sections when locked having an uninterrupted outer surface.

4. An elongated composite bar for use with hollow articles which comprises a pair of spaced apart crown sections, the outer surface of each of said crown sections being shaped to correspond to the interior shape of the hollow article, a pair of spaced apart sections in the space between the crown sections one at each end thereof, the outer surface of said spaced apart sections being shaped to correspond to the interior shape of the hollow article, interlocking connections between each of the pair of sections and both of the crown sections, and a fifth section in the center of said bar, said fifth section being turned to expand and lock the sections of said bar together, said Crown and spaced apart sections when locked having an uninterrupted outer surface.

References Cited in the le of this patent UNITED STATES PATENTS 1,492,291 Giovannoni et al. Apr. 29, 1924 2,161,061 Keyes June 6, 1939 2,408,689 Seme Oct. 1, 1946