US1075319A - Process for drying hides. - Google Patents

Description

W. H. ALLEN. PROCESS FOR DRYING HIDES.

APPLICATION FILED JAN. 31, 1913.

Patented 001114, 1913.

FIBRE WITNESSES.-

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WILLIAM H. ALLEN, OF DETROIT, MICHIqrAN.

PROCESS FOR DRYING HIDES.

Specification of Letters Patent. Patented 6 14, 1 913,

Application filed January 31, 1913. Serial No. 745,319.

Toull whom it may concern:

Be it known that I, WILLIAM H. Arman, a citizen of theUnited States, and a-resident of Detroit, in the county of'Wayne an advance over the process disclosed in myv former Patent No. 1,009,881, dated Nov. 28th,1911.

This invention consists of a process for drying fibrous material such as hides, comprising ,two steps; first, stretching the hides while wet on a fiat plate to which they will adhere until they become dry; and second, causing a current of air or other vapor-ab sorbing fluid to flow over each hide from the center outward so that the leather will remain wet and attached to the plate along its edges while it is drying from the-center outward, thus insuring a retention of the full area of the stretched hide.

This process may be carried out by the mechanism illustrated in the accompanying drawing, in which and partly 1n section, of an air pipe.

Similar reference characters refer to like parts throughout the several views.

In putting this process into use, the hide 1 shown in Fig. 2 while still wet, and stretched the amount ,desired. The plate maybe smooth or figured according to the desired finished. surface of the leather. As stated in my former patent, no nails are necessary to hold the stretched-fibrous material in position, as the adhesion between the wet fibrous material and the metal plates is sufficient to hold the material in position. If desired, the plates may be coated with lacquer or enamel.

shown in my former patent.

1 will'be placed on the plate Pressing the fibrousmaterial against the plates, as by means of rollers, conduces to the adhesion. If desired, the fibrous material may be covered with the porous mats The plates may then be placed in arack consisting of posts 3 and side strips or supports 4 between the posts, on which the plates 2 rest. Ad-

jacent the rack is a pipe 5, of any desired construction, from which the flat pipes 6 extend between the plates above the hides to the middle of the hides, as indicated in Fig.

1. An opening 7 in the bottom of each pipe 6 permits air or other moisture-absorbing fluid to escape at the middle of the hide, whence the fluid flows out between the plates 1. The'moisture-absorbing fluid saturates itself as soon as possible, resulting in the hide dryin first at the center. As theedges cling to t e supporting plate, the material.

cannot shrink intermediate the edges, and as a result, the hide when dry will have substantially. the same area as whenstretched wet.

While the preferred method of causing a current of moisture-absorbing fluid to'radiate over the hide from the opening 7 will be to connect the pipe 5 to a source of air under pressure, this is not necessary, as the pipe 5 may connect to the outer air and the apparatus may be in a closed case9, indicated in dottedlines in Fig. 4, from which air may be drawn inany desired manner. The upper plate 16 may be stationary. The

distance between the plates should be small,

' wet on a-fiat plate andcausing moisture-absorbing fluid to pass over the same from the center outward.

2. The process of drying fibrous material which consists-in stretching the samewhile wet on flat plates, stacking the plates parallel to each other and close together, and conducting currents of moisture-absorbing material to substantially the middle of the plates so that it will pass out between the' plates in all directions.

3-. The process of drying fibrous material which consists in stretching the same while wet on a flat plate and then absorbing the moisture from the material by a proper fluid, beginning at substantially the center of the fibrous material and then continuing toward the edges.

4. The process of drying hides which consists in stretching the hide on a flat plate, placing the plate adjacent another which is of substantially the same size and spaced a short distance from it, and conducting a cur rent of air to the middle of the hide so the I middle of the hide will dry first and the drying of the hide will continue towardv the edges which will adhere to the plate until dried.

In testimony whereof I have signed this 15 specification in the presence of two subscribing witnesses \YILLIAM I-I. ALLEN. WVitnesses:

EDWARD N. PAGnLsnN, HUGO W. KRnINnnING.

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