An Improved Rotary Blower and Air Compressor which can also be used as a Pump.
Year: 1890

page_text: Date of Application, 20th Dec., 1890
Complete Specification Left, 19th Sept., 1891-Accepted, 24th Oct., 1891
PROVISIONAL SPECIFICATION.
An Improved Rotary Blower and Air Compressor which can also
be used as a Pump.
WILLIAM WINSHIP WARDLE 32 Somerfield Road London N. Engineer do
hereby declare the nature of this invention to be as follows:-
The object of this invention is :-
1st. To so arrange the vanes or blades of the fan as that by their interaction a
partial vacuum is produced for the indraught air, fluid, or liquid medium.
2nd. By the interaction of the vanes or blades operated by the means and in the
manner hereinafter described to compress the effluent air, fluid, or liquid.
I attain these objects in the following manner:
Within a suitable metallic casing I mount a series of blades or vanes; one of the
blades is keyed fast to a central spindle upon which are also hinged or loosely
hung a sufficient number of blades or vanes to effect my purpose. I find in
practice that 4 loose blades will in most cases suffice, but I do not confine myself
absolutely to this number. A slot is formed radially in the centre of each blade,
and within these slots travel a series of studs, pins, or rollers which are fixed into,
or suitably mounted upones.
a ring the axis of which is eccentric to the spindle
carrying the vanes or
This ring is compelled to revolve by the action of the pins in the slots described
when the spindle is rotated, but if desired, the ring can be driven direct by
mounting a pulley or equivalent upon it in any suitable manner. The pins are so
mounted upon the ring, and the eccentric is so adjusted as that a partial vacuum is
produced for the indraught air, fluid, or liquid. While the effluent air,.fluid or
liquid is compressed by the interaction of the vanes operated as described.
Dated December 20th 1890.
FRANCIS M. ROGERS,
Agent.
COMPLETE SPECIFICATION.
An Improved Rotary Blower and Air Compressor which can also
be used as a Pump.
WILLIAM WINSHIP WARDLE 32 Somerfield Road London, N. Engineer, 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 :-
The object of this invention is :
1st. To so arrange the vanes or blades of the fan as that by their interaction a
partial vacuum is produced for the indraught air, fluid, or liquid medium.
2nd. By the interaction of the vanes or blades operated by the means and in the
manner hereinafter described to compress the effluent air, fluid or liquid.
I attain these objects in the following manner :-
Within a suitable metallic casing 1 mount a series of blades or vanes; one of the
blades is keyed fast to a central spindle, upon which are also hinged or loosely
hung a sufficient number of blades or vanes to effect my purpose. I find in
practice that 4 loose blades will in most cases suffice, but I do not confine myself
absolutely to this number.
A slot is formed radially in the centre of each blade, and within these slots
travel a series of studs, pins or rollers which are fixed into or suitably mounted

page_text: -
upon a ring, the axis of which is eccentric to the spindle carrying the vanes or
blades.
This ring is compelled to revolve by the action of the pins in the slots described
when the spindle is rotated, but if desired the ring can be driven direct by mounting
a pulley or equivalent upon it in any suitable manner.
The pins are so mounted upon the ring, and the eccentric is so adjusted as that a
partial vacuum is produced for the indraught, air, fluid or liquid. While the
effluent air, fluid or liquid is compressed by the interaction of the vanes operated as
described.
To enable my invention to be better understood I will now describe the same by
means of the accompanying drawing in which:—
Fig. 1. is a vertical transverse section shewing the arrangement of parts, when
the eccentric ring is driven from a central spindle.
Fig. 2, is a longitudinal section shewing the arrangement when the eccentric ring
is driven direct, and actuates the blades or vanes.
In the drawing 1, is the metallic casing, 2, the standard which supports in any
suitable form of bearing one end of the revolving shaft 3, or the dead spindle 3",
see Fig. 2. Upon shaft 3 is keyed one of the blades or vanes 4, while the
remaining blades which may consist of 4, or other number suited to my purpose are
hinged as at 4, 4, 4, 4d &c., but are loose upon the shaft. A radial slot 5, is
forined in each blade; and upon ring 6, which is eccentrically mounted with regard
to the driving spindle or shaft 3, but is free to turn, are secured, a corresponding
number of studs or pins 7, which engage with the slots in each blade. When the
shaft 3, is rotated, the ring 6, is compelled to revolve by the driving action of the
slots 5, upon the pins 7, secured thereto or forming part thereof, with the result
that the vanes loosely hinged upon the shaft as described are respectively driven at
varying velocities arranged so as to produce a partial vacuum for the indraught
air, fluid, or liquid, while the effluent air fluid or liquid is compressed. The vane
-nearest-the-outlet sec 1
_Fig._1_being_overtaken by that following it, owing to the
higher rate of speed imparted to it by the action of the eccentric ring driven by
the pins, has the effect of producing a partial vacuum for the indraught air; fluid,
or liquid but compressing the effluent flowing in tlie direction indicated by the
arrows. In Fig. 2 the ring 6, having pins or studs 7, is mounted upon a dead
spindle 3, part of the face of the ring being preferably coned and fitted with a
flange-62,-for-direct driving by belt or it may be toothed and driven by gear, or
by any other equivalent means. One of the vanes 4, is hinged and keyed as at 4,
to the shaft 3, which revolves with it; the remainder are loose as already described.
Upon rotating the ring 6, it is obvious that the vanes-will-be-driven in the.manner.
just described, their interaction producing a like result.
I do not confine myself to the exact shape of the vanes shewn, as they may be
varied to suit my purpose without departing from the spirit of my invention.
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
In a rotary blower, fan, or pump, the particular combination and arrangement of
parts whereby the vanes, blades or equivalent are caused to revolve at variable
speeds and by their interaction produce a partial vacuum for the indraught air,
fluid or liquid, while compressing the effluent air, fluid or liquid, substantially as
herein described and shown.
Dotad Santamber 10th 1801