US Patent 8348287 Slab cart

A slab cart for sheet material which comprises a dolly component. A shelf component receives the sheet material. A mechanism is for coupling the shelf component to the dolly component in a pivotable manner, so that the shelf component will go from a horizontal position to a vertical position. When the shelf component is in the horizontal position the sheet material will be manually slid off of the shelf component onto a support table and be manually slid from the support table onto the shelf component. When the shelf component with the sheet material is in the vertical position, the sheet material will be held on edge to the shelf component and be transported by the dolly component through the confines of narrow places.