Year: 1886

page_text: 1, JOHN MORRIS GARFIELD, gentleman, residing at Galveston in the County of
Galveston, and State of Texas, one of the United States of America, 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:-
This invention is designed for ventilating rooms, ships, etc. and it consists in the
construction, novel arrangement, and adaptation of devices as will be hereinafter
more fully set forth and claimed.
In the accompanying drawings:
Figure, 1, is a view of a section of a room showing my improved ventilation
apparatus in an operative position.
Figure, 2, is a plan view of the fan and its casing.
Figure, 3, is a plan view of the operating gear,
Figure, 4, is a side view of the same, and
Figure, 5, is a view of the weight.
Referring by letter to the said drawing, A, indicates a portion of a room in
which, B, is the ceiling and, C, the upper floor. About the centre of the room and
to the ceiling thereof I arrange a fan casing, D, which is open on its under side and
communicates at its upper side with air ducts, G, leading therefrom, and between
the floor and ceiling as shown to the out side of the building whereby fresh and
pure air may be conducted to a room and discharged therein by means of a fan as
will be presently explained.
Above the fan casing and between the ceiling and floor is arranged on suitable
plates a system of gearing, E, which may be similar to an ordinary clock gear.
In the present instance there being a large number of gearing employed so as to
avoid frequent winding of the weight. In the centre of the nest of gearing is a
pinion, a, which receives its motion therefrom, and from this pinion through the
ceiling extends a fixed shaft, b, which is secured at its lower end to the fan blades.
This fan is of substantially S-form in outline and so arranged, as to draw the fresh
air from the ducts, G, and forcibly discharge the same into a room or other com-
partment. One of the gears, F, is provided with a fixed drum, H, around which
passes an endless chain or rope, I, which imparts motion to the gearing from
whence it is communicated to the fan shaft and fan. This rope, I, passas from
the drum, H, in a horizontal position between the ceiling and floor to and over a

page_text: pulley, J, which is journaled at the one edge thereof, and from this pulley to an
upper pulley, K, journaled above the pulley, J, and between the walls of the
building over a drum, L, which also journaled between the walls, and at a con-
venient point to be reached by a person in the room, and thence over a pulley, M,
which may be beneath the lower floor or in the cellar of a building; the rope being
carried back over the same source so as to be made endless.
To this endless rope between the vertical walls is secured a weight, N, which is
designed to operate the gearing and fan, the gearing being so arranged as before
described that the fan may run for any desired time after the weight has been
wound up. The drum, L, is provided with a crank, P, for turning the same, which
crank may be removable.
While I having described my invention as being applied to a room of a building,
it is obvious that the same may be arranged on ships or other places, and a con-
tinuous current of fresh air drawn in for ventilation.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed I declare that what
I claim is
1. The combination with a fan casing constructed and arranged as described; of
the fan arranged therein, the gearing placed above the fan, the air ducts leading
to the fan chamber, the endless weighted chain or cord and drums, and pulleys
arranged, substantially as specified.
2. In a ventilating apparatus, a fan chamber having an open bottom secured to a
ceiling and communicating with air ducts, passing between the floor and ceiling of a
building, the fan in the said casing and means for rotating the said fan, substantially
as specified.