Abstract: A device for compressing a wax-type material comprising a piston disposed within a chamber wherein channels are provided along the lateral surface of the piston for venting gases during the compressing operation.

Abstract: In an apparatus for pressing paraffin granules or paraffin powder into candles wherein a candle which tube containing a candle wick is concentrically disposed within a candle-making tubular chamber, said tubular chamber also housing a piston which is slidably disposed therein and adapted to compress the paraffin granules or paraffin powder into a candle, the improvement which comprises providing a recess in the end face of the piston for receiving and centering the end of the wick tube containing said candle wick in said tubular chamber to ensure that the wick is centered in the tubular chamber and subsequently in the candle from one end to the other end thereof.

Abstract: An improved fuse size, as well as a method for preparing same, are disclosed. Specifically, the fuse size disclosed includes a combination of urea and carboxymethyl cellulose, preferably including added starch. The method disclosed includes combining the urea and carboxymethyl cellulose, heating the mixture, and then adding an oxidizing agent to the mixture in the presence of a metal ion which has at least two oxidation stages, but which is in the lower of said oxidation stages when added thereto. In a preferred embodiment, the oxidizing agent employed comprises hydrogen peroxide, and the metal ion is preferably bivalent iron, added in the form of a ferrous salt such as ferrous chloride.

Abstract: The present invention relates to a new process for preparation of lignin resin, i.e., thermosetting resin based on lignin, particularly from sulfite waste liquor, which resin for example can be used as a binder in particle board.