Abstract: Floor panels are secured to a sub-floor by elongated elements, one of which is secured to the floor itself and has an inverted T-shape, the other of which elements defines downwardly open socket means for receiving an arrow shaped projection on the stem portion of that T-shaped support element. A precise fit is afforded between these elements 1 and 2 so that the floor panels are locked in place by engagement between the arrow shaped projection in the support element and the socket portion of the upper retaining element. An alternative version of the disclosure shows a more secure connection between these elements.

Abstract: Floor panels are secured to a sub-floor by elongated elements, one of which is secured to the floor itself and has an inverted T-shape, the other of which elements defines downwardly open socket means for receiving an arrow shaped projection on the stem portion of that T-shaped support element. A precise fit is afforded between these elements 1 and 2 so that the floor panels are locked in place by engagement between the arrow shaped projection in the support element and the socket portion of the upper retaining element.

Abstract: High strength, cellulosic-gel-containing kraft paper is made by mechanically refining kraft papermaking pulp to a freeness of CSF 500-800, mixing the resulting refined pulp with from 1 to 10% hydrated cellulosic gel binder, running the resulting fluid mixture into a felted sheet and pressing and drying the sheet to form the kraft paper product.

Abstract: A furniture drawer comprises side and rear walls made of profile material laid out in its upper and lower extremities with folds for fitting in and sliding the drawer in relationship to the furniture, and, in at least one of its extremities, with a cutaway at right angles, for fixing the front or rear walls of same.

Abstract: A medium density, high strength lignocellulose composition board comprises on a dry weight basis from 60 to 95% lignocellulose particles and from 5 to 40% exhaustively hydrated cellulosic gel binder, the gel binder being characterized in its gel condition by a TAPPI drain time of at least 350 seconds.

Abstract: Cellulosic pulp is made in 85% yield by mechanically defiberizing lignocellulose in a steam atmosphere, mixing the resulting aqueous fibrous pulp with a lignocellulose-pulping quantity of finely divided lime, and digesting the pulp in the presence of the lime to a predetermined degree of pulp digestion. The resulting digested fiber can then be mechanically beated in aqueous medium until it is substantially converted to a hydrated cellulosic gel product.

Abstract: A fire resistant bauxite composition board comprises, in percent by weight, from 10 to 85% lignocellulose particles, from 65 to 20% bauxite particles, and from 5 to 25% binder, particularly a hydrated cellulosic gel binder. The bauxite, (aluminum oxide dihydrate), is characterized by containing a large amount of water of hydration, by stability below 200.degree. C., and by release of its water of hydration at above 200.degree. C. Accordingly, the bauxite-containing board is stable during its manufacture, storage and use. However, in a fire situation the substantial amount of released water of hydration materially supplements the inherent non-combustible character of the bauxite in increasing the fire resistance of the board.