US243936A - Lotjgke - Google Patents

Description

j UNITED STATES PATENT OFFICE.

ROBERT A. MGOULLOUGH, OF MILWAUKEE, WISCONSIN.

SOAP.

SPECIFICATION forming part of Letters Patent No. 243,936, dated July 5, 1881,

Application filed April 27, 1881.

To all whom it may concern:

Be it known that I, ROBERT A. MoOUL- LOUGH, of Milwaukee, in the county of Milwaukee, and in the State of Wisconsin, have invented certain new and useful Improvements in Soap; and I do hereby declare that the following is a full, clear, and exact description thereof.

My invention consists in a new and improved composition for soap, together with a new process for compounding the several ingredients thereof and thoroughly incorporating the whole into one mass, all as more fully set forth hereinafter.

To prepare, say, three hundred pounds of my improved soap, I first take about sixty pounds of olive-oil stearine, forty pounds of peanut-oil, and one hundred pounds of lard, and sufficient caustic soda, either dry or in solution, to saponify the mass. If I employ the soda in a solid state, I require about forty pounds; but if it is in a liquid state, of 32 Baum, about one hundred and twenty pounds of the solution is necessary. The whole is then boiled together in the usual way until saponification ensues, making what is known as a curd soap. I next prepare in another vessel a second mixture, as follows: I take about thirty pounds of the crystals of soda (crude carbonate of soda) and add about twelve pounds of common salt, stirring the mixture into a homogeneous mass. I next boil the above into a dry granulated state, and to this result 1 add about two gallons of water, and into this last solution, reduced to a temperature of about 150 Fahrenheit by the addition of water, I add the first mixture or curd soap, prepared as above described, and draw the fire from under the kettle. Then into the resulting mass I stir about eight pounds of powdered slippery-elmbark (Ulmusfulva,) and the soap is now completed, with the exception of the color, the mass being now at the temperature of 125 Fahrenheit, or thereabout.

For the above amount (three hundred pounds) of soap, to properly color the same I make a solution by dissolving eight ounces of sulphuret of potassium in cold water and mix in ten pounds of Venetian red. I then make a second solution by dissolving two pounds of sulphate of iron in warm water, and pour this solution into the cold solution just described,

(No specimens.)

which produces a solution of a blue color. I then pour this coloring-solution into the mass of soap, and thoroughly incorporate the soap and coloring-matter together by hand or in a crutching-machine, as is most convenient. When the whole is cold it is to be cut into bars for laundry use or pressed into cakes and finished for toilet purposes in the usual manner.

The addition of the slippery-elm bark Ulmus fulva) modifies the nature of the whole soap and adds to it the desirable medicinal and healing properties, besides rendering it a better article for ordinary laundry use.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a soap compound, the mixture of oleaginous and alkaline material with the pewdered bark of the Ulmus fuloa, as set forth.

2. In a soap compound, the mixture of a cold solution of sulphuret of potassium with Venetian red and with a warm solution of sulphate of iron, substantially as described, to color and finish the said compound.

3. A soap compound consisting of olive-oil stearine, peanut-oil,lard, caustic soda, crystals of soda, common salt, and slippery-elm bark, as set forth.

4. The improved soap formed by the mixture of olive-oil stearine, peanut-oil, lard, caustic soda, crystals of soda, common salt, slippery-elm bark, sulphuret of potassium, Venetian red, sulphate of iron, and water, substantially as described.

5. In the manufacture of soap, the process described, consisting in, first, forming a mixture of olive-oil stearine, peanut-oil, and lard, saponifying this by the addition of caustic soda, either in a solid or liquid state, and boiling the whole to form a curd soap; secondly, preparing a mixture of crystals of soda and common salt, boiling the same to a granulated state, and adding water thereto, and then adding the two mixtures together; and, thirdly, stirring into the resulting mass powdered slippery-elm bark, as described.

6. The process of manufacturing soap, consistin g in, first, preparing a curd soap by mixing together olive-oil stearine, peanut-oil, and lard, saponifying this mixture by the addition of solid or liquid caustic soda, the whole being boiled together 5 secondly, preparing a solution by mixing together crystals of soda and common salt, boiling the same to a dry granulated state, and adding water thereto; thirdly, adding the two mixtures together in a heated state and drawing the fire from under this mixture fourthly, stirring into the resulting mass powdered slippery-elm bark; fifthly, making a cold solution of sulphuret of potassium and adding Venetian red thereto; sixthly, making a separate solution of sulphate of iron in warm Water and adding it to the cold solution; and, finally,

adding this mixture to the soap solution, and incorporating the whole together by thoroughly mixing or crutching the same, substantially as described.

In testimony that I claim the foregoing I have hereunto set my hand this 20th day of April, 1881.

ROBERT A. MGOULLOUGH.

Witnesses S. S. STOUT, HAROLD G. UNDERWOOD.