USRE2114E - Improved method of treating offal - Google Patents

Description

, UNITED STATES PATENT'A OEEICE.

JOHN r. EAUGH, EDWIN r. EAUGHAND DANIELI BAUGH, ALL or PHIL# ADELPHIA, rA., AssIeNEEs or WILLIAM ADAMsoN. e

IMPRQVED METHOD oF TREATlNG oFFAL.`

Speciiication forming part of Letters Patent No. 46,318, dated February 14, 1865 Reissue No. 2,1 lll, dated November 28, 1865.

To all whom, it may concern:

Be it known that we, JOHN P. BAUGH, ED- WIN P. BA'UGH, and DANIEL BAUGH, (trading under the firm of BAUGH & SONS,) of Philadelphia, Pennsylvania, are the owners of certain Letters Patent for the Treatment of Oial, granted to WILLIAM ADAMsoN on the 14th dayof February, 1865; and we do hereby declare the following to be a full,

clear, and exact description of the same, reference being had to the accompanying drawings, and tothe letters of reference marked' thereon. ,f

The invention "of the said..WILLIAM ADAM- SON consists,first, in utilizing olfal by draining from it the greater portion of its duid-matter, which, if permitted to remain in the mass, causes fermentation and noxious exhalations and prevents the rapid and effective drying which is necessary before the ottal is rendered available as a manure 5 secondly, the invention consists in simultaneously drying and disinfecting the drained oifal by subjecting it to the direct action of the products of combustion.

In order to enable others to practice the invention, we will now proceed to describe a mode of carrying it into effect. Y

In Chicago and other cities of the West, where vast quantitiesbf hogs and other cattle are slaughtered, the proper disposal ofthe oial has become a subject of much consideration. It has hitherto been the practice to throw the offal into the rivers and creeks, to the annoy ance of those living in the neighborhood and tothe detriment ofthe pu blic health. Recently attempts have been made to utilize this offal by converting it into a fertilizer, the oifal being placed in heaps on the ground and permitted to ferment, after which it was spread ont and permitted to dry. This yplan proved lto be impracticable, owing to the oftal being exposed without first draining from it the fluid portion preparatory to the drying, the presence of the fluid-matter causing rapid fermentation and the most noxious exhalations. Y. The accompanying drawings, which form a part of this specification, illustrate a plan by which the important preparatory step of draining the oftal and the subsequent step of disinfecting it may be accomplished.

Figure 1 represents a vertical section of a' building, by which the invention can be cari ried into effect 5 Fig. 2, a transverse section; Fig. 3, aplan view, and Fig. 4 a modified form of building.

The building A may be either of brick, wood, or other suitable material; should be about twice as long as it is broad, and should havethe usual inclined roof B, part of which is detachable for the introduction of the oifal,

which is deposited on a draining iloor or platform, D, consisting of perforated plates, wirenetting, or grating, supported by suitable joists, E. Beneath the door and at one end of the building is a fire-place, F, for receiving the fuel, by means of which the process is in part effected.

Another and more economical mode of constructing the building is that illustrated in Fig. 4, where G represents thev surface of the ground, and Ha trench with inclined sides,y

which may be simply paved or cemented, or even the bare ground will in some cases suffice. The grated floor or perforated platform D is in this instance on a level with the surface of the ground, and is covered by a low building, I, theroof of which, or a portion of it, is detachable. Having deposited on the grating or iloor a layer of straw or stubble or twigs or branches of trees, we place on the latter a mass of offal from the slaughter-houses, &c., and allow it to remain until the greater portion of the fluidmatter is which the mass may be dried by simple exposure to the air, without emitting the noxious exhalations resulting from the exposure of undrained oli'al. The inventor, however, preferred touse the direct act-ion of the products of combustion, which caused a simul' taneous drying and disinfecting. In order to do this, a fire is kindled in the tire-place F,

and the products of combustion permitted to pervade the whole space beneath the grated loorD. ducts of combustion permitted to pass through the o'alywhich finally becomes dry, disinfected, and ready for removal. It is -then treated according to any of the usual prodraiued from it, after I rlhe lire is continued, and the pro# cesses for making phosphates or animal'manure. While the fire is burning, we, from time to time, throw onto it spent tan, grape-vine twigs,or any other matter containing tannin, the -fumes andsnioke from which have rapid and certain disinfecting properties. t

By the above-described processes, all offal hitherto discarded and heretofore deemed a nuisance, and a matter difficult to dispose of, can be converted into a manure at a very triiing cost compared with its value as a fertilizer. s

1t will be evident that in some climates the drying ofthe drained off-al may be effected without the aid of fuel, simple exposure to a y dry atmosphere being sufficient to reduce the oial to a condition t for conversion into` phosphates;

It will be evident, too, that the buildings for carrying out the process may be varied as regards form and construction, without departing from the main features o t' the invention. The fire-place, for instance, may be at a dis- /a t Y '2,114

tance, and the, products of combustion conveyed along suitable passages to the space beneath the grated oor. f

We claim as the invention of the said WIL- LIAM AnAMsoN and desire to secure by Letters Patent,-

1. Utilizing oial by draining, from it the greater portion of its Huid-matter preparatory to the drying of the mass, for the purpose described. y

2. Simultaneously dryingv and disinfecting oft'al by subjecting it to the Idirect action of the products of combustion, substantially in "the manner set forth.

In testimony whereof we have signed ourv names to this specification before two subscrib- `ing witnesses.

J. l?. BAUGH.

E. P. BAUGH.

DANL. BAUGH.

Witnesses: y

JOHN WHITE, JOHN D. MCGRATH.

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