USRE5610E - Improvement in treating offal, flesh, entrails - Google Patents

Description

y and fecal substances UNITE STATES PATENT OFF CE; 1

WILLIAM ADAMSON. Avn CHARLES F. A. smom, 0F PHILADELPHIA, PENNSYLVANIA,ASSIGNORS TO WILLIAM ADAMSON.

IMPROVEMENT IN TREATING OFFALLFLESH. ENTRAILS. h. FOR PRESERVATION. MANUREtM.

Specification forming part of Letters Patent No. 119,000, dated September 19, 1871; reissue N05 5,010.1 dated October 21, 1873; application filed October 8, 1873.

Division A,

To all whom it may concern:

Be it known that we, WILLIAM ADAMSON and CHARLES F. A. SIMONIN, both of Philadelphia, county of Philadelphia, State of Pennsylvania, have invented an Improvement in Treating Flesh, Entrails, and Offal for Preservation, Manure, &c., of which the following is a specification:

()ur invention consists in treating animal garbage, &c., with bydrocarbon, substantially as described hereafter, so as to deprive them of the ingredients which induce putrescence, and obtain valuable products.

Oils and fats have been extracted from animal matter by the direct application of liquid hydrocarbons; but this necessarily involved a considerable waste of the fluid which is retained in the residuum after the fat has beenv extracted. The residuum, moreover, is deprived by the process of much of its ammoniacal properties, and is accordingly deteriorated in value as a manure.

Fertilizers have beenprepared from j offal and fish by passing air or gas, or gas charged with hydrocarbon and phenol vapors, through the mass, and subsequently drying with hot air. This differs from our invention, as the vapor we employ is unmixed with air or gas, is solely the product of the distillation of hydrocarbons and the process is conducted in a close vessel. v Although diflerent modes of carrying our invention into effect may be adopted, we prefer the following: The animal matter is placed -on a perforated diaphragm, in a closed vessel,

and beneath the diaphragm is introduced a I supply of hydrocarbon, by preference such as is of a volatile character-qbenzine, benzole,

gasoline, or naphtha, for instance--and this is vaporized by means-of asteam-coil, or otherwise. The vapor and, afler permeating the mass of offal, passes oil from the vessel to a condenser, froni whence it is returned, in'its original condition of a volatile liquid hydrocarbon, to the space in the vessel below the diaphragm, to be again vaporized; or the hydrocarbon may be permittedrto pass into the vessel near the top, and through the animal matte'runtiI it reaches a point where it is again vaporized. The process is conducted under more or less pressure, determined by a weighted valve in the'pipe through which the vaporpasses ,to the condenser. The greater the pressure the more rapid and thorough will be the extraction of the fat, The extract, consisting of liquid hydrocarbon holding fatty and oily matter in solution, may be removed from time to time from the vessel through a suitable discharge- 0001i, and may be redistilled, in order to separate the fats from hydrocarbons; and this re-. distillation may, if desired, be conducted in the same vessel in which the extract is obtained.

We claima r The extraction of animal oils and fats by by drocarbon vapors in a closed vessel, substantially in the manner described.

In testimony whereof we. have signed our names to this specification in the presence of two subscribing witnesses. V

' WILLIAM ADAMSON, GHS. F. A. SIMONIN. 1

Witnesses:

QWx. A. STEEL, HmnY Sm.-