Improvements in Centrifugal Blowers.
Year: 1894

page_text: This Print is in accordance with the Original Specification as it stands after
Amendment (under Section 18 of the Patents, &c. Act, 1883) as allowed by
the decision of the Comptroller General of the 7th day of February 1899.
Date of Application, 28th May, 1894-Accepted, 30th June, 1894
COMPLETE SPECIFICATION (AMENDED).
Improvements in Centrifugal Blowers.
I, GARRETT WALLACE POOLE, of 28, Arch Street, Newark, County of Essex and
State of New Jersey, U.S.A., Contractor, do hereby declare the nature of my
invention, and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :—
My present invention relates to a new and useful improvement in combined
suction and centrifugal blowers, and consists in the improved drum and in the
combination and arrangements of parts, substantially as hereinafter more fully
described and claimed.
In the accompanying drawings: Fig. 1 is a side elevation of a blower provided
with my improved drum, certain portions being broken away, and Fig. 2 is a front
elevation of Fig. 1, with certain parts in section.
In said drawings a represents the shell having outlets b and c and centrally
anged inlets. A shaft (, revolving in suitable bearings e, penetrates the shell a
s center in the usual manner.
Secured to said shaft is a spider carrying the revolving drum, which
Lonsists of the side plates g and hand of a series of curved partition plates i
rivetted to said side plates as at . Each of said partition plates in also curved
in a direction transverse to the main curve, as clearly shown in Figs. 1 and 2,
and thus form in connection with the side piates a series of longitudinally curved
channels, each having a curved bottom and a curved top. The outlet openings m
of the curved channels project beyond the periphery of the side plates g and h.
To the outsides of said side plates are secured cylindrical rings o penetrating the
openings in the shell a and bearing against the rings or flanges p secured to shell a
and thus constitute a substantially air tight joint for the chamber formed between
the outer shell and the drum.
In operation, when the drum is revolved, air is sucked through the inlet
openings into the channels and is discharged by centrifugal and suction force
combined through the outlet openings into the outer shell.
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 a blower, a drum consisting of a series of channels or passages, each of
said channels being curved in a longitudinal direction and having its bottom and
top curved in a direction transverse to said longitudinal curve, substantially as
described.
2 In a blower, a drum consisting of two side plates and of a series of

page_text: . channels curved in a longitudinal direction and having their bottoms and tops curved
in a direction transverse to said longitudinal curve, the outlet openings of said
channels projecting beyond the outer edges of said plates, substantially as
described.
D
0011
1
1002
J. P. BAYLY,
18, Fulham Place, W., Agent for the Applicant.