Wax cylinder

A wax cylinder for a wax spraying machine comprising a housing, an ejection cylinder having a chamber mounted in said housing, an elongated piston slidably mounted in said chamber of said ejection cylinder and having a pressure face, said piston having a longitudinal groove extending therealong and a feed passage extending therethrough from a first end connected to said groove to a second open end in said pressure face for communication with said ejection cylinder chamber, feed line means communicating with said longitudinal groove for passing wax in a feed direction through the housing and the ejection cylinder to said longitudinal groove, a check valve in said feed line means for preventing the return flow of wax opposite the feed direction, means for preventing the rotation of said piston relative to said ejection cylinder in said chamber, means for ejecting wax from said chamber, and means for actuating longitudinal movement of said piston in said chamber to urge said pressure face into engagement with the wax in said chamber, said pressure face being operative responsive to said actuating movement to pressurize the wax for ejection through said ejecting means.