US56121A - Improved process for refining oil - Google Patents

Description

UNITED STATES PATE T OFFICE.

E. e. SUTHERIJAND, on SAN FRANCISCO, CALIFORNIA.

IMPROVED PROCESS FOR REFINING OIL.

Specification forming part of Letters Patent No. 56,121, dated July 3, 1866.

the oil and forces it out into other tanks, one

of which contains cold water, upon which the oil rests, while the blood and other debris foreign to the oil are contained in the water or sinks to the bottom. The oil is then drawn into a heater, and from thence, through a steam-coil, into a cooler, when it is carried by means of pipes or hose, into casks.

To enable others skilled in the art to make use of my improved process for extracting and refining oils, 1 will proceed to describe the operation and mode of carrying the sameinto practical effect, to wit:

For carrying the first part of my invention into effect, I use steam taken from a common boiler, near which is placed a trying kettle or tank, which can be tightly closed, and having aperforated bottom or grate, upon which the blubber is placed. Steam is admitted into this kettle or tank by means of a pipe leading from the steam'boiler. The blubberis placed in this trying-kettle, and steam from the boiler introduced, which permeates the whole mass and melts the oil entirely out of it, at the same time forcing the liquid matter through a pipe placed near the bottom of this kettle or tank into another tank, which is partially filled with cold water.

The effect of this part of my process is that the liquid matter passes or is forced into this receptacle or tank, where the oil remains floating on the top of the water, while the worthless matter-such as the blood, &C.S8tl3l6S to the bottom or is held suspended in the water in the tank, from whence it can be drawn at will, and fresh water added after the oil has been removed, which may be stated as follows, to wit:

A pipe having a stop-cock leads from this material, is placed near the tank or heater last described, in which is placed a coil of pipe or worm. Water is introduced into this tank for the purpose of keeping it cool, which can be removed as often as it becomes heated. The oil is now tobe drawn off from the heater by means of a pipe into this coil, and passes through it, from where it is drawn by means of hose or pipes into casks, and my'process is completed.

By my improved process all of the oil contained in the blubber is extracted, and itis estimated that twenty per cent. more oil can be obtained and of five per cent. higher value, as the oil is not discolored, as in the process now in use, in which the blood is allowed to mingle with the oil, imparting to it a dark color.

The danger of burning the oil by direct contact with the fire is also obviated by my process, while it exists to a great extent in that now in use, while a large percentage of the oil cannot be extracted by the processes now in use for fear of burning the oil during the trying process, and, finally, if the oil is drawn directly into the casks while hot, they will be more or less injured and become leaky, causing a large percentage of loss by leakage.

Having thus described myprocess for extracting and refining oil from whales and other marine animals and fishes, so as to enable any person skilled in the art to make use of the same, I will proceed to state what I claim, and desire to secure by Letters Patent, to wit:

The within-described process for extracting and refining oil from whales and other marine animals and fishes, all substantially as described, and for the purposes set forth.

In witness whereof I have hereunto set my hand and affixed my seal this 15th day of August, A. D. 1865.

E. o. SUTHERLAND. n s.]