US1672607A - Expansion-joint section - Google Patents

Description

June 5, 1925;

Filed Oct. 19, 1925 Figure 4 is a Patented June 5, 1928.

UNlTE-D STA TES PATENT OFFlCE.

ALBERT C. FISCHER, OF CHICAGO, IIlLINOIS.

EXPANSION-JOINT SECTION.

Application filed October 19, 1925. Serial No. 63,363.

to which it is to be applied, and with theends connected so as to tightly close the same against the'possibility of concrete or other foreign material collecting between theabutting ends of the sections and destroying the eflectiveness of the joint. 7

Two forms ofthe invention are shown in the accompanying drawing by way of illustration, in which Figure 1 is a perspective view of one form of the invention; Figure 2 a detailed planview of the form shown in Figure 1; Figure 3' is a view in sideelvation of another form ofth' invention and similar view showing the sections constructed as in Figure 3 connected.

Referring now to the drawing in detail A and B represent'two sectional strips of expansion joint, which may be made of a proper thickness and in a suitable length, with the same sections adapted to be connected together so as to offer a continuous strip when installed as a joint. i j

In all forms of the invention I prefer to equip the sections of this strip with overlapping projections so as to realize an effective connecting means for the sections. In one form these interlocking projections are to be realized by providing a rabbeted edge -5- on the ends of each section, so as to leave projections -6-. The recess made by the rabbeted edge-5 andthe projection -6- will produce a complementary overlap of the section ends, so that the inter locking projection -6- on one section will fit the recess made by the rabetted edge --5- on an abutting section. \Vith this interl0cking arrangement, as best shown in Figure 1, a snug fit may be made between the abutting ends of the sections, and the interlocking projection -6" will securely hold the sections together, particularly when the concrete is oured around thesame.

In Figure 3 have shown another form of interlocking projections in the form. of a m0rticed joint. In this form the projections with the sections of the.

7- on the ends of one section will fit the" recesses 8- on an adjacent section, and

the adjacent section is made with an inter-:-

mediate inter-locking projection -9-'- which is adaptcd to-fit the recesses -10- between the projection 7. the sections are joined together, as shown in Figure 4, a pin or the like ,,-1l may be drivendo'wn' thru the joint so'as to lock the projections 7-- in the recesses -8 and the projection -9-in the recess '-10--.

In all forms theinterlocking and overlapping projections ofler amore convenient and efi'ective means of connecting the sections together-for the reasons-above indicated. v

It might be stated here that the material from which the joint is constructed will 'or-" dinarily comprise av mixture of blown bi tuminous material or the'like, and a filling material such as, fibrous matter. This is simply mentioned so that it will be readily appreciated how the cuts can be made to produce these interlocking projections;

I clalm:

nous material, wherein the opposite edges are. provided with alternate cut-outs and In this form when 1. Alpreformed expansion joint of bitumi I joints are interconnected," said cut-outsand projections extending throughout the height of the strip; and a fastening pin adapted to pass thru a plane parallel with the height of the strip and thru the interlocking portions to hold adjacent ends of the'strip'together.

' 2. A- preformed expansion joint composed of bituminous material, the'opposed ends of the joint having relatively deep cut-outs and projections adapted to receive similar cut' outs and projections of a connectible strip, 1

and a fastening pin passing transversely thru the interlocking"projections of two such interconnected strips whereby to hold them in assembled relation.

3. A relatively thin, preformed expansion joint of substantial height or width,- adapted to be installedso that the plane of its width is in substantially vertical position,

. said joint being formed of non-metallic compressible and expansible material, and said joint having its opposite ends provided with cut-outs and tongues extending longitudinally of the height of the strip, the cut-outs on one end being positioned opposite the tongues of the opposite end and being constructed and arranged so that the end of one strip will overlappingly interlock with the opposite end of another strip; and a relatively long pin adapted to pass through said tongues and cut-outs, so as to hold the overlapped ends of adjacent strips in locked relation 4 10 In testnnony W1L'1I80f I have signed my name to this specification, on this 8th day of October, A. D. 1925. I

ALBERT C. FISCHER

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