of the manually controlled pump 266, as previously explained. With the upright guide 282 running upwardly on the upper surface of the arm 250 the rotatable platform 155 is elevated so that the two spaced apart abrasive discs abrade through the bushings of the beam connections, either adapter ...
As fuel is carried by the feeding member to the brushing member, the level of the liquid in the burner housing drops to a point such that eventually the upper part of the mouth of the control pipe is exposed and air then flows upwardly through the liquid in this pipe to the space at ...