Improvements in Rotary Fans or Blowers.
Year: 1891

page_text: Date of Application, 6th Mar., 1891-Accepted, 11th Apr., 1891
COMPLETE SPECIFICATION.
Improvements in Rotary Fans or Blowers.
I, EDWARD JOHN WILD, of c'o H. S. King & Co., 45, Pall Mall, London,
entleman, do hereby declare the nature of this invention, and in what
anner the same is to be performed, to be particularly described and ascertained
and by the following statement :-
My invention relates to improvements in rotary fans or blowers for household
urposes and has for its object to provide a device which can be used to urge a fire
y supplying a constant blast the intensity of which can be modified at will.
T
COMPLETE SPECIFICATION.
Improvements in Rotary Fans or Blowers.
I, EDWARD JOHN WILD, of c'o H. S. King & Co., 45, Pall Mall, London,
Gentleman, 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 :-
My invention relates to improvements in rotary fans or blowers for household
purposes and has for its object to provide a device which can be used to urge a fire
by supplying a constant blast the intensity of which can be modified at will.
recompanying drawings
Fig. 1 is a side view,
Fig. 2 a plan and
Fig. 3 a central longitudinal section of my improved blower.
My improved blower consists of a case or shell a of iron, tin, or other suitable
metal or material consisting of a spiral chamber a¹ leading to a tubular end or outlet
pipe a² as clearly shown in Figs. I and 3. This shell is provided on one side of a
spiral chamber a¹ with a handle whereby it is held in one hand by the user when
kindling or urging a fire. The spiral chamber a¹ contains the rotary fan or blower
proper c, mounted on an axis d, supported at both ends to the sides of the said
chamber; this fan or blower c consists of a series of arms or spokes e fixed at their
inner ends to the axis d and provided with angular bars f, arranged as shown in
Fig. 3. The outer ends of these bars and arms or spokes being fixed with series of
plates or paddles g, which have a special relative inclination, and arrangements
clearly shown in Fig. 3.
The relative angles or inclinations of the various paddles together with the spiral
form of the chamber, ensure a proper accumulation and expulsion of air, which is
driven straight in the direction indicated by the arrows through the outlet pipe or
nozzle a², without being beaten against the sides of the said pipe.
The chamber a' is furnished on each side with openings through which the air
is exhausted from the outside.
The mechanism for rotating the shaft and driving the fan or blower consists of a
pinion mounted upon the end of the shaft d which projects beyond one side of the
casing a (Fig. 2) and gearing with a toothed wheel j.
The axes of the wheels are secured in the upper and lower ends of a frame k,
fixed to one side of the chamber a¹. The wheel j is formed integrally with a
pinion gearing with a toothed wheel m, mounted on a axis n which is held by the
same frame and upon the outer and square end of which the handle o is placed for
the purpose of rotating the former blower, when urging a fire, the nozzle a² of the
apparatus being first placed in front of the fire grate and held in position by the
handle b.
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) The improved fan or blower for household purposes arranged, constructed,
and operating substantially as and for the purpose described.
Dated this 6th day of March 1891.
RAYNER & CASSELL,
37, Chancery Lane, W.C., Agents for the Applicant.