Abstract: A drawing material backing (1) is provided which serves to make technical and diagrammatic drawings and is provided on one side with an impressed orthogonal grid (2), which consists of defining pyramid-shaped embossed elevations (8) and has a grid line spacing (3) of 0.5 or 1 millimeter, so that the free-hand drawing of straight lines or of lines intersecting at right angles and with a selected spacing by means of a pencil, ballpoint pen or a paste-applying pen on a paper sheet applied to the backing will be facilitated. To improve the guidance of drawing implements having writing points or writing balls (9, 10) which differ greatly in diameter and to prevent an impression into the drawing paper, the side faces (5, 5a) of the grooves include a steeper angle (6) next to the bottom (4) of the groove and a flatter angle (7) in their upper portion so that the embossed elevations have the shape of pyramids (8) having angled sides.

Abstract: A structure for protectively supporting and spacing rolls of web material in a multi-layer stack. The structure includes an elongated member of expandable polystyrene material having a pair of opposed surfaces. A first of the surfaces has a plurality of spaced parallel generally semi-cylindrical indentations disposed to receive rolls of web material. The radius of each of the semi-cylindrical indentations being greater than the depth of the indentation so that the rolls will be snugly retained within indentations in a pair of members and the members will be out of contact with each other. The member has a plurality of cavities located on the lateral edge surfaces thereof extending transversely of the axis of the semi-cylindrical indentation to render the expanded foam material substantially uniformly thick throughout to enhance uniform curing thereof.