IMPROVEMENTS IN APPARATUS
Year: 1874

page_text: LETTERS PATENT to George Woods, of Cambridgeport, in the County
of Middlesex, and State of Massachusetts, in the United States of
America, for the Invention of "IMPROVEMENTS IN APPARATUS FOR
COMPLETE SPECIFICATION filed by the said George Woods at the
Office of the Commissioners of Patents, with his Petition and.
Declaration, on the 27th October 1874, pursuant to the 9th Section
of the Patent Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
WOODS, of Cambridgeport, in the County of Middlesex, and State of
Massachusetts, in the United States of America, send greeting.
WHEREAS I am in possession of an Invention for "IMPROVEMENTS
IN APPARATUS FOR DRYING LUMBER AND OTHER ARTICLES AND MATERIALS," and
have petitioned Her Majesty to grant unto me, my executors, adminis-
trators, and assigns, Her Royal Letters Patent for the same, and have
made solemn Declaration that I really believe myself to be the first and
truc Inventor thercof.

page_text: NOW KNOW YE, that I, the said George Woods, do hereby declare
that the following Complete Specification, under my hand and seal,
fully describes the nature of my said Invention, and the manner in
which the same is to be performed (that is to say):-
My Invention relates to improvements in drying apparatus for drying
lumber, consisting in the employment of a suitable receptacle or con-
tinuous pipe, through which cold water is forced from a pump, tank, or
head. This pipe or receptacle is located conveniently in an ordinary
drying room, and as the vapors from the raw lumber or other articles
evaporate they are condensed on the cold water pipes, from which the
condensed water drips into a conductor located below the said water
pipes. The conductor for the condensed water has a slight inclination
towards one end thereof that projects through the wall of the drying
chamber, by which arrangement the condensed water is automatically
conveyed from the drying chamber. The drying chamber is heated in
the usual mannor.
The cold water after passing through the aforesaid pipe or receptacle
may be used as feed water for steam boilers or otherwise, as may be
desirable.
My Invention also relates to the new and improved process of drying
lumber in a manner as hercin-above stated.
On the Drawings hereunto annexed Fig. 1 represents a ground plan,
and Fig. 2 represents a sectional elevation of the same. Similar letters
refer to similar parts wherever they occur on the Drawings.
a represents a drying room or chamber heated in the usual manner;
b, b, represent a pipe or receptacle, through which cold water is made to
circulate by being forced in at c from a force pump or suitable head.
The cold water after being circulated through the pipe or receptacle b is
forced out at d, from which it may be conducted to a steam boiler as
feed water or otherwise, as may be desirable.
Beneath the surface condensors b, b, b, I suspend in a suitable manner
an inclined trough or conductor e, into which the condensed water drips
from the surface of the condensors b, b, b. The said inclined conductor e
terminates at f outside the drying room, or in a similar manner, as
shown in Fig. 2.
The lumber or other articles that are to be dried may be suspended in
the chamber a in any of the ordinary ways.

page_text: The pipe or receptacle b, b, b, may be located in any desired position
in the drying chamber a without departing from the spirit of my
Invention.
The operation of my Invention is as follows:-After the lumber or
other material that is to be dried is placed in the chamber a I heat the
atmosphere in the said chamber as usual, and by keeping up a con-
tinual stream of cold water through the pipe or receptacle b, b, in a
manner described the vapors that evaporate from the lumber are con-
densed as water on the surface of the condensor b, b, from which it falls
in liquid form into the conductor c, and is automatically conveyed from
the drying chamber as above described. In this manner I am able to
dry lumber and other articles more rapid and at a less expense as
compared with the ordinary methods of drying wood, etc., now in use.
Having thus fully described the nature, construction, and operation
of my Invention, I wish to secure by Letters Patent and claim,—
1st. The process as herein described for drying lumber, consisting in
forcing water through a receptacle in the heated drying chamber, on
the surface of which receptacle the moisture from the lumber, etc., is
condensed and conducted from the drying room in a manner as herein
shown and set forth.
2nd. An apparatus for drying lumber and other materials, consisting
of a chamber a in combination with a pipe or receptacle b, b, containing
circulating cold water, and a conveyor c, as hercin set forth and
described.
In witness whercof, I, the said George Woods, have hercunto set
Witnesses,
ALBAN ANDRÉN,
JOHN R. HEARD.
GEORGE WOODS. (L.S.)