Patent for improvements in retort-burners, to be used for any suitable and desired purposed and for any kind of oils by providing a "direct-combustion retort-burner that the combustion will be perfect and complete and the oil and air may be supplied thereto under a uniform pressure of high or low degree." (Lines 20-27) The retort-burner will be "readily assembled without the necessity of having special machinery for their manufacture or skilled workmen to put them together." (Lines 31-34) Illustration is included.