An Improved Combined Electro Motor and Rotary Fan.
Year: 1892

page_text: Date of Application, 30th Sept., 1892
Complete Specification Left, 19th May, 1893-Accepted, 24th June, 1893
PROVISIONAL SPECIFICATION.
An Improved Combined Electro Motor and Rotary Fan.
FREDERICK HENRY ROYCE c/o F. H. Royce & Co. Cooke Street Hulme,
Manchester Electrician do hereby declare the nature of this invention to be as
follows:--
The arranging of a combined rotary fan and electro motor in such a manner
that the yoke joining the field magnets of the motor forms part of the frame of the
combination and the field magnets of the motor lie parallel with the axis of rotation
of the common motor & fan shaft, so offering but a slight obstacle to the draught
of air passing through the fan.
In order to more clearly describe the nature of my invention I have annexed
hereunto a sheet of drawings.
In the several views illustrated therein similar figures refer to similar parts.
Fig. 1. is a front elevation.
Fig. 2. is a plan.
Fig. 3. is a side elevation.
In the combination according to this invention the armature A and the blades of
the fan B are erected upon the common shaft C which passes through the yoke D.
The yoke D is extended in 3 directions forming the arms E which support the
combination and the yoke D carries the two field magnets F & F¹ which lie parallel
with the shaft C.
The electro motor will thus be seen to occupy but a small portion of the least
useful air passage.
Dated this 20th day of September 1892,
COMPLETE SPECIFICATION.
An Improved Combined Electro Motor and Rotary Fan.
I, FREDERICK HENRY ROYCE, c/o F. H. Royce & Co., Cooke Street, Hulme,
Manchester, in the County of Lancaster, Electrician, 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 consists in the arranging of a combined rotary fan and electro
motor in such a manner that the yoke joining the field magnets of the motor forms
part of the frame of the combination, and the field magnets of the motor lie parallel
with the axis of rotation of the common motor and fan shaft, so offering but a
slight obstacle to the draught of air passing through the fan.
The drawings to which I hereinafter refer, are those left with the Provisional
Specification.
In the combination according to this invention, the armature A and the blades of
the fan B are erected upon the common shaft C which passes through the yoke D.
The yoke D is extended in three directions forming the arms E which support
the combination, and the yoke D carries the two field magnets F and F¹ which lie
parallel with the shaft C.
The electro motor will thus be seen to occupy but a small portion of the least
useful air passage.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1st. In a combined electro motor and fan, the utilising of the yoke of the electro
motor to carry the combination, in the manner substantially as hereinbefore
described, and as shown on the drawings.
2nd. The arranging of the field magnets parallel to the shaft in the manner
substantially as hereinbefore described and as shown on the drawings.
Dated this 10th day of Ma. 1902
THOMAS PRESCOTT,
53, Arcade Chambers, St. Mary's Gate, Manchester,
Agent for the Applicant.
THOMAS PRESCOTT,
53, Arcade Chambers, St. Mary's Gate, Manchester,
Agent for the Applicant.