US76591A - Improvement in lumber-driers - Google Patents

Description

J. .BRAKELY. Lumber Drier.

No. 76,591. Patented April 14, 1868.

REPETERB. PkoTo-u'moeRAPuER, WASHINGTON, D c.

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' JOSEPH BRAKELEY, OF BORDENTOWN, NEW'JERSEY Letters 'Patent No. 76,591, dated April 14, 1868.

IMPROVEMENT In LUMBER-DRIBRS.

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r0 ALL WHOM IT MAY ooncnnnz Be it known that I, JOSEPH BRAKELEY, of Bordcntown, in the county of Burlington, and in the State of New Jersey, have invented certain new and useful Improvements in Drying Lumber; and do hereby declare that the following is a full, clear, and exact description thereoffrei'crcnce being had to the accompanying drawings, and to the letters of reference marked thereon. i I

In the annexed drawings, making part of this specification, A represents a cylindrical or other suitablyshaped metallic chamber, which is made of any desirable size for containing lumber which is to be dried. This chamber is surrounded with a metallic case, B, a space being left between the case and the chamber to contain steam. I V

E represents-a pipe which leads into the case-B, and G represents a steam-pipc which leads from a steamboiler into the pipe E.

H represents a pipe which'leads fromthe chamber A, through the rear end of the case, and which connects with the pipe E near its upper end. This pipe H is provided with a stop-cock, I. The lower end of pipe G extends into pipe E beyond thcjunction of the pipe H, so that in injecting steam into the case it will be conveyed in pipe G beyond themeuth of pipe H.

J represents a small pipe, which is providecl'with a stop-cock, and which passes from the rear end of the chamber A through the case B, as shown.

D represents a pipe provided with a stop-cock which leads from the bottom or under side of the case B, the object of which is to. allow of the escape of condensed steam, or steam itself, when a surplus has been supplied to the case. V I

In using this invention the lumber is introduced, into the chamber A through 8.11001 at C. The door is then closed, and a stop-cock in pipe G being'opened, steam from the boiler is injected through pipes G and E into the case B. The steam immediately surrounds the chamberA, and beats it so, that the process of drying commences within it. When the vapor from the drying lumber commences to accumulate, the stop-cockI of pipe H is opened, and the vapor is drawn from the chamber by the current of. steam passing ,through the pipe E below the mouth of the pipe H, creating a vacuum at the mouth of pipe H, and thereby drawing the vapor into the case B, to assist in heating the chamber A. I by this means utilize the hot vapor, as it is given off from the lumber, and as the current of steam through pipe E has a tendency to produce a vacuum in chamber A, the vapor is more efi'ectually drawn away from the lumber than it would be otherwise, and none can remain to be absorbed or taken up by the lumber, which has -once been expelled,

After the lumber has been sufliciently dried, thestop-cock Iis closed and the cock of pipe .1 is'o'pened. By this means v'apor is prevented from returning to the chamber, and air is admitted through pipe J, so that the door at O can be readily opened for removing the lumber.

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

1. The chamber A and case B, used in combination with the pipes H, E, and G, whereby I am enabled to apply'heat to the chamber by means of steam, and at the same time draw oil and utilize the vapor from chamber A, as and for the purpose set forth. r

2. The use of a pipe leading from tho lumber-chamber into thcpipe which supplies steam for heating said chamber, for the purpose of drawing away and utilizing the hot vapor from the lumber, substantially as herein set forth.

In testimony thatI claim the foregoing, I have hereunto set my hand, this 20th day of March, 1868.

JOSEPH BRAKELEY.

Witnesses:

A. A. YEATMAN, V. D. Srocxenrnen.

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