Hollow Tile (Patent No: 298798)

Inventor: Wade, Joseph

Location: Calgary

Comments: N/A

Description: Joseph Wade, Calgary, Alberta, Canada, 1st April, 1980. Filed 24th July, 1929. Serial No. 353,406.

Claim.—A tile of the character described, provided with internal chambers extending longitudinally throughout its length, and having a slotted groove parallel and adjacent to one chamber and separated therefrom by an internal partition wall, said groove forming a shallow recess and being of dovetailed section with its longitudinal opening at the outer surface of the tile narrower than its longitudinal base formed by said internal partition wall, all substantially as described.

Claim allowed, 1.