The joint thereshown has two stainless steel side plates (21, 22) which are rolled from a single strip and are bent double at the bottom of the lower limb (23) of the Y. The plates have rolled in ridges (24) at the top of this limb (23) and diverge above the ridges (24) as upper Y limbs (26). Between the limbs (26) a core is captivated at a relatively hard, necked lower core-portion or rib (31) by the ridges (24). Above these, a relatively softer upper core-portion or strip (32) fills the space between the upper limbs (26), tapering out with them. The core is a co-extrusion of the two portions (31, 32) joined by a neck (33). It is held in place by the ridges (24) being rolled around lower portion (31). This joint is fitted between tiles at a gap of the width of the ridges (24), by driving it between the tiles to compress the divergent upper Y limbs (26).
A system and method are provided for forming expansion joints within artificial ground cover. An elongated expansion joint support is coupled with a length of expansion joint material. A lower end portion of the expansion joint support is shaped to engage a ground surface. The two structures may be coupled with one another in different positions to vary the resulting expansion joint height. The lower end portion of the expansion joint support may be shaped to have a ground engagement wall and to receive ground engagement spikes. No component parts need be removed from the system after the application of artificial ground cover adjacent thereto, thus permitting simultaneous application of ground cover on both sides of the expansion joint.
Disclosed is a method of joining at least two linoleum sheets. The method includes creating a seam between the linoleum sheets and forming a bead of non-epoxy adhesive on a seam edge or injecting the non-epoxy adhesive into a closed seam. The seam formed by the edges of the linoleum sheets is joined and filled with the adhesive. Excess adhesive is removed and the seam is rolled and the seam adhesive is limited to the area between the linoleum sheets and the substrate within one linoleum sheet thickness of the seam.
