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WANTED STATES PATENT OFFICE.
THOMAS R. CURTIS, OF CENTER CITY, TEXAS.
VENTILATOR.Specification of Letters Patent. Patented Sept. 12, 1916.
Application filed April 24, 1915. Serial No. 23,741.To all whom it may concern:
Be it known that I, TIo-'rAs R. CURTIs,
a citizen of the United States, residing at
Center City, in the county of Mills and State
5 of Texas, have invented certain new and
useful Improvements in Ventilators; and I
do hereby declare the following to be a full,
clear, and exact description of the invention,
such as will enable others skilled in the art
10 to which it appertains to make and use the
same.
This invention relates to ventilators, and
one of the principal objects of the invention
is to provide a ventilator which will force
15 fresh air into a room or building, and which
can be turned so that the vitiated air will be
drawn out of the room or building.
Another object of the invention is to pro-
vide a ventilator, having a vane pivoted
20 thereto, and means for moving the vane
upon its pivotal point so that it will operate
to throw the ventilator out of the wind, so
that a suction will be created to draw the
vitiated air out of the room.
25 The foregoing and other objects may be
attained by means of the construction illus-
trated in the accompanying drawing, in
which the figure of the drawing is a ver-
tical sectional view taken through the venti-
30 lator and showing the vane in elevation.
Referring to the drawing, the numeral 1
designates the base of the ventilator having
an annular flange 2 at its upper end, and
said flange providing an opening therein to
35 receive the lower end of the ventilator. Con-
nected to the circular flange 2 is a guide ring
3, having an annular flange 4 extending
around the same. The ventilator 5 is pro-
vided with an open lower end 6 having an
40 outwardly extending flange 7, and connected
at various points around the flange 7, are
lugs 8. Mounted between each pair of lugs
8 is a roller 9 to bear upon the ring 3. A
cover for the rollers is connected to the lower
45 portion 6 of the ventilator, said cover com-
prising a ring 10 having a downwardly ex-
tending flange 11 which incloses the flange 4.
A vane 12 is pivoted at 13 to a bracket 14
connected to the back end of the ventilator5. The arm 15 of the vane 12 is provided 50
with a slot 16 through which a pin 17 ex-
tends, said pin being mounted upon an arm
18 extending through the ventilator, and
connected to a bell-crank lever 19 by means
of a pin 20 on the arm 18 extending through 55
a slot 21 in the bell-crank lever. The bell-
crank lever 19 is pivoted at 22 to a bracket
23 supported upon the inside of the venti-
lator 5, and connected to one arm of the
bell-crank lever 19 by a pivotal pin 24 is an 60
operating lever 25.
When the ventilator is thrown out of the
wind by means of the vane 12 occupying
the position shown in the drawing, the viti-
ated air in the room will be drawn out by 65
suction through the ventilator 5. When the
vane 12 is thrown down into position to
move the ventilator into alinement with the
wind to admit fresh air to the room, the
ventilator is moved upon the rollers 9, by 70
means of the operating lever 25.
Various changes may be made in the de-
tails of construction without departing
from the spirit and scope of the invention as
defined in the claims. 75
What is claimed is:-
1. The combination with a revolving ven-
tilator, a bracket exteriorly on said venti-
lator, a vane having an arm, said arm being
pivotally mounted intermediate its ends in 80
the outer end of the bracket, a slot in the
lower end of the arm, a link mounted in said
slot, the inner end of the link extending into
the ventilator, a bracket in the ventilator, a
bell crank pivotally connected to the bracket 85
and connected to the inner end of the link,
an operating lever connected to the free end
of the bell crank for moving said vane in an
operative position and rotating said venti-
lator. 90
2. A ventilator including the combina-
tion with a curve having an annular flange
thereon, a vertical flange formed on said
inner flange, a ventilator having rollers on
its bottom mounted upon said flange, a cas- 95
ing covering said lower end of the ventilator.
3. A rotating ventilator, a bracket on said
ventilator, the same pivotally secured to said1,197,609.
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Curtis, Thomas R. Ventilator, patent, September 12, 1916; Washington D.C.. (https://texashistory.unt.edu/ark:/67531/metapth859021/m1/2/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.