Patent Model - Improvement in Joints for Sidewalks
Maker and role
Henry Dyer, Patentee
Mar 12 1878
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1 1/2 x 11 3/4 x 9" (3.8 x 29.8 x 22.9cm)
Dyer's patent constructs "a sidewalk in which the boards comprising it are so connected as to form a continuous sheet or plank; and consists in a peculiarly-formed block placed between the planks and secured to the sleepers by screws, the said blocks being so shaped and placed that they form a rigid joint between the planks they secure." (Patent Number 201,171)
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