Improvements in and relating to the Airing, Drying, or "Seasoning" of Timber and such like.
Year: 1899

page_text: Date of Application, 30th Mar., 1899
J.
Complete Specification Left, 29th Dec., 1899-Accepted, 17th Feb., 1900
Improvements in and relating to the Airing, Drying, or "Seasoning"
of Timber and such like.
I, JAMES MILLEN ADAM, Pneumatic Engineer, 9, Spring Gardens, Kelvinside,
Glasgow, do hereby declare the nature of this invention to be as follows: —
It is directed primarily to the utilisation of otherwise wasted, power in con-
nexion with pneumatic conveyors applied to sawmills and other manufactories
producing chips, fibre or dust. When such material is carried from machines
or workshops, a large volume of air is required at a high velocity, and after
being separated in a centrifugal chamber, is allowed to escape at the velocity
due to the residual pressure of the fans employed. This air or portion of it I
propose to use for drying purposes and I utilize its unexpended momentum to
carry it onward to the stoves or drying chambers.
This I accomplish by fitting on to the outlet of separator a cowl or casing
of a suitable, form, connected by a duet or ducts with the drying chambers and
having valves controlling the circulation.
This arrangement may be used in connexion with an independent system of
heating, or preferably the air may be conducted through closed heaters before
its discharge into the drying chambers.
Dated this 20th day of March 1899
Improvements in and relating to the Airing, Drying, or Seasoning
of Timber and such like.
I, JAMES MILLEN ADAM, Pneumatic Engineer, of Ibrox Iron Works, Fairley
Street, Govan, Glasgow, formerly of 9, Spring Gardens, there do hereby declare
the nature of this invention and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement:
When wood chips, fibrous matter or grinding dust, are conveyed through
fans by atmospheric pressure and separated in a centrifugal chamber of the
type described in the Specification No. 9423 of 1886, the volume of air required
for conveying, usually contains a good deal of heat and is allowed to escape
with great velocity. My invention relates to an arrangement whereby this
wasted heat and energy may be utilized for such purposes as drying timber,
ventilating, or blowing furnaces, or partly one or other of these purposes.
To this end I add to the centrifugal chamber or dust collector a second chamber
for conserving and distributing the air, in the form of a cylindrical or conical
hood or casing, covering the air outlet of the first chamber and having an outlet

page_text: or outlets tangential to the direction of the rotating air, with a duct or ducts
leading to the proposed destination of the air. -
In the accompanying drawings, Fig. 1 is a dust collector of the usual type
(in section) fitted with a cylindrical hood, according to my invention.
Fig. 2 is a dust collector as described in my Specification 14302 of 1897 fitted
with a hood partly conical in form.
Fig. 3 is a plan view of dust collector and hood.
In these G is the dust separating or first chamber, F is the air inlet thereto,
and E is the air outlet therein J is the second or conserving chamber and K
the delivery ducts leading therefrom.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is
1. In conjunction with apparatus of the kind described, for separating dust
from air, a second conserving chamber substantially as and for the purposes set
forth.
2. The combination of apparatus as described in my Specification 14,302 of
1897 and a distributing chamber and tangential ducts over the air outlet, sub-
stantially as and for the purposes set forth.
3. The combination of apparatus for separating dust from air of the type
described in Specification 9423 of 1886, and a distributing chamber and ducts
for further utilizing the purified air, substantially as described and for the
purposes set forth.
Dated this Twenty-eighth day of December 1899.