US276405A

US276405A - Apparatus for drying glue

Info

Publication number: US276405A
Authority: US
Publication date: 1883-04-24
Anticipated expiration: 1900-04-24

Description

(No Model.) I

W. A- HOEVELER.

APPARATUS 110R DRYING GLUE, aw. No. 276,405. Patented Apr.24, 1883.

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WILLIAM A. HOEVELER, OF PITTSBURG, PENNSYLVANIA.

APPARATUS FOR DRYING GLUE, 80C.

SPECIFICATION forming part of Letters Patent No. 276,405, dated April 24, 1883.

Application filed December 30, 1882. (N6 model.)

To all whom it may concern Be it known that I, WILLIAM A. HOEVELER, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Apparatus for Drying Glue, 820.; and I do herebydeelare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanying drawings, which form a part of this specification, in which- Figure 1 is a plan section, and Fig.2 a side elevation in section, of my improved dryingalley. Fig. 3 is an end view in section.

The object of this invention is to facilitate the drying of'glue, tankage, &c., in glue-works.

The invention consists in the combination and arrangement of devices, as hereinafter fully described and claimed.

The form and arrangement are as follows:

A B represent the two parts of the alley, separated by the partition 0, which is shorter than the alley, so as to leave acommunicating space at both ends. I

At the front of section A, I locate a blower, D, actuated by a steam-engine or other motor, E, also located within the walls of the alley. The whole current from blower D is directed through section A of the alley, whence it turns into section B and comes back through it, to be again drawn into and forced out of the blower into section A. By this means the contained air of the alley is set in continuous motion around and around through the two sections successively, and as the structure is made asair-tight as practicable in such cases the air remains unchanged until the doors F or either of them is opened to discharge the vitiated air and let in fresh air.

In sections A and B, I place the railway a a, to admit of the convenient movement of the contents in process of drying, which are 'generallyset ongcars or buggies.

In section A, in front of blower D, I place a steam or other heating device, G, which may be of any form or design adapted to allow the air from blowerD to pass through it and to heat such air whilepassing therethrough. I prefer the radiating coil for such purpose, the steam entering at b and emerging at 0. At the other end of the alley, which by my double construction is in section B just back of theblowerand' heating-coil, I place a condensing-coil, H, ofa construction similar to coil G, and having in let (1 and outlet 0. Through this condenser I keep flowing a refrigerating liquid or brine, which renders the condenser very cold. continuous current of air from the blower passes over the contents of the cars or trays in the alley and takes up moisture in its passage. After such passage t he air is charged with moisture and comes in contact with the coils of the condenser H, upon which the charge of moisture is condensed, and the air emerges dry again, enters the blower, and is again made the vehicle by which the moisture of the glue or other contents is transported to and deposited on the condenser.

In drying glue by this method I do not use thesteam-coil at the first stage of drying a charge, as the drying should not be effected too rapidly; but as soon as the product begins to stiffen properly I admit the steam to coil G, and thereafter the operation is continuous, as above described.

By doubling up the alley into two sections, as shown, I am enabled to erect the alley in a more contracted space. In a length of ninety feet I get the benefit of a single alley one hundred and eighty feet long.. Section B may, if desired, be located on top of section A. Doors may be located wherever desired, to facilitate the movement of the trays or cars and the placing of them into and their removal from the alley.

By the above apparatus I can perfect the drying in a very much shorter time than can be done by the old alleys, and I can. operate in hot weather without hinderance from the condition of the atmosphere.

In cases where the atmosphereis dryenough to dispense with the heater and the condenser, I can throw the doors F wide open, extend the partition C out to that end of the alley, and

The i then preserve a continuous forced draft of sufficiently dry air in both alleys for the purpose. As there are many days during the year fine enough to give reasonably dry air, I can operate with the blower alone in this way, and thus economize the steam and the refrigerating brine.

3. The drying apparatus consisting of the alleys A B, blower l), heating-coil G, and con- 15 'densingcoil H, substantially as described.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in presence of two witnesses.

WILLIAM A HOEVELER.

Witnesses T. J. MCTIGHE, THOMAS J. PATTERSON.