US1934260A

US1934260A - Building construction

Info

Publication number: US1934260A
Application number: US611819A
Authority: US
Inventors: George H Dean
Original assignee: Individual
Current assignee: Individual
Priority date: 1932-05-17
Filing date: 1932-05-17
Publication date: 1933-11-07
Anticipated expiration: 1950-11-07

Description

Nov. 7, 1933. G. H. DEAN 1,934,260

BUILDING CONSTRUCTION Filed May 17, 1932 ,ii/7m .3 1927/6722?? Patented Nov. 7, 1933 narran STATES PATENT oFFIcs 4 Claims.

My present invention relates to the building art, and has particular reference to stationary mountings for supporting structures such as columns and the like.

Modern building construction requires Vstructural elements and parts ready for assembly, in order to reduce the working time and to facilitate the building erection. Parts such as tubular support columns, for example, are furnished the building contractor complete with concrete centers, in specified lengths. Although the parts are of deiinite length and form, they are not iinished smoothly, and the bearing surfaces are quite rough.

Since the necessity for speed in erection prevents accurate fitting of the parts to each other, there is a tendency for faulty alignment and faulty bearing, due both to the lack of finish of the elements themselves, and to the ordinary variations in size, and positioning of the elements. rThus, in the case of support columns,

the caps and bases do not lock snugly with the column ends because the ends are not finished smooth, because the caps and bases are generally of cast material and are therefore rough, and because the caps and bases are rarely in axial alignment with the columns, due to the unavoidable slight variations in thickness of materials and in mounting the columns in place.

It is the principal object of my invention to devise a support arrangement which will compensate .ior the usual bearing inequalities found in building construction. To this end, I have devised a deformable bearing arrangement which equalizes and distributes the bearing pressure over the entire surface of the bearing element, thus eliminating rocking and concentration of pressure on peak points of the bearing parts and I have designed the deformable bearing elements to be of standard form and readily mounted in operative position.

With the above and other advantageous features in View, my invention consists of a novel arrangement oi parts more fully disclosed in the detailed description following, in conjunction with the accompanying drawing, and more specically deiined in the claims appended hereto.

In the drawing,

Fig. 1 is an elevation of a support column embodying the novel support arrangement;

Fig. 2 is a Vertical section through Fig. 1;

Fig. 3 is an enlarged section of a column end prior to assembly; and

Fig. l is a plan View of the novel cushion ring.

Referring to the drawing, the support colrunn l0 has a cap l1 and base 12 of standard type, the base being usually heavier than the cap. The column 10 is formed of a tubular metal 'shell 13 lled with concrete 14; the ends of the concrete are provided with

annular recesses

15, 16, in which bearing material 17 is mounted, the surface ofthe bearing material being aligned with the surface of the concrete and filling the space between the column ends and the cap and base.

Referring now to Fig. 3, the upper end of the column as it appears prior to assembly is shown in enlarged form; the recess 15 has a bearing ring 18 of peculiar form mounted therein and locked to the concrete by projections or pins 19. The bearing ring is made of bearing metal, such as lead, babbitt or the like, and has an annular recess 20 and an upstanding annular ridge 21, which as illustrated is sloped towards the recess 20. When the column, the cap and the base are assembled, the pressure forces the ridge 21 down 75 into the recess 20 until the bearing surfaces of the column ends are flush with the face of the cap and base.

As shown in Fig. 2, the cap and the base have

annular flanges

22, 23 which hug the outer surface 80 of the column; the metal of the bearing ring cannot escape, but is locked in between the column ends and the cap and base respectively, and thus completely lls the spaces resulting from the unfinished surfaces and provides a rigid support in 85. conjunction with the concrete, the pressure being uniformly distributed and equalized over the entire bearing surface.

The rings 18 are preferably inserted as by a pressing tool of usual type, into the column ends while the concrete is still soft, the pins 19 thus locking the rings in the column ends as the concrete sets. If desired, the rings may be separate, and inserted into the concrete recesses just prior to assembly, as the pressure will force the metal tightly into the recesses.

The novel construction thus compensates for roughness of the bearing surfaces and minor alignment faults, distributes and equalizes the bearing pressures, and ensures firm' assembly 100 without rocking of the columns, caps and bases. The use of a cushion ring of the type described is also advantageous in other bearing arrangements, as for setting toilet seats, wash stands, and the like, in place in a firm manner to eliminate rocking due to faulty alignment.

The cushion ring may be inserted in the cap or base, instead of in the column, by providing the cap or base with an annular recess to receive the w cushion ring. If desired, the ring may be mounted il@ by being poured into the annular recess provided in the column, or the cap and the base, or may be set in the green concrete of the column.

The columns may be cut with plane ends, but are preferably cut so as to turn the edges of the metal shell inwardly, thus forming a clamp for preventing outward displacement of the deformable material and locking it in place; the cushion ring is preferably set slightly below the plane of the end of the metal shell.

The use of a cushion ring as above described has been found to resist drag or pull of the parts, as lead and similar soft metals and materials interpose a Very substantial friction to sliding of the bearing parts, particularly when under the bearing pressure. The pressure of the cushion ring also tends to eliminate vibration, as the material lls all the spaces and crevices to join the column, cap and base into a solid unit.

While I have described a specific constructional embodiment of my invention, itis obvious that desired changes in the arrangement of the parts, in their shape, and in the materials used, may be made to accord with the requirements for par-v ticular installations, Within the spirit and the scope of the invention as deiined in the appended claims.

I claim:

1. A support column having a tubular shell of metal, a concrete core providing a bearing surface at one end of said column, and a ring of deformable metal mounted in said bearing surface and normally extending beyond the column face.

2. A support Vcolumn having a tubular shell of metal, a concrete core providing a bearing surface at one end of said column having an annular recess in said bearing surface, and a ring of deformable metal mounted in said annular recess and normally extending beyond the column face.

3. A support column having a tubular shell of metal, a concrete core providing a bearing surface at one end of said column having an annular recess in said bearing surface, a ring of deformable metal mounted in said annular recess and normally extending beyond the column face, said ring having a recess and an upstanding ridge adjacent said recess and inclined thereto.

Y 4. A support column having a tubular shell of metal, a concrete core providing a bearing surface at one end of said column, and a mass of deformable metal mounted in said bearing surface and normally extending beyond the column face.

GEORGE H. DEAN.