Improved Means for Driving the Fans of Machines used for Forming Fur Hat Bodies.
Year: 1893

page_text: Date of Application, 8th Apr., 1833
Complete Specification Left, 6th Jan., 1894--Accepted, 10th Feb., 1894
PROVISIONAL SPECIFICATION.
Improved Means for Driving the Fans of Machines used for
Forming Fur Hat Bodies.
I THOMAS MOORES the younger of Carlton House Gorton in the County of
Lancaster, Hat Manufacturer, do hereby declare the nature of this invention to be
as follows:-
This invention relates to the means for driving the exhaust fans used in machines
for forming fur hat bodies to cause the fur to adhere to the perforated cones upon
which the bodies are formed.
These fans are mounted on vertical spindles which are driven at a high velocity
and the usual method of driving them is by a crossed strap passing round a small
plain pulley on the fan spindle and round a larger plain pulley upon the horizontal
cross shaft which passes underneath the centre of the machine.
The objections to this method of driving are that if the strap becomes at all
loose it slips and does not drive the fan at the required velocity and sometimes
even falls off the small pulley altogether, and if it is too tight the strain is too
great and the strap soon becomes broken thus causing very great expense and loss
of time in the frequent renewal thereof.
To remedy these defects according to my invention I use a double grooved
small pulley on the vertical fan shaft and a corresponding double grooved larger
pulley on the horizontal driving shaft, and I drive by means of a single continuous
endless rope which is crossed and led round the four grooves of the two double
pulleys in such a way as to drive the fan without any two portions of the rope
coming into contact, so that it will drive with a minimum amount of friction, the
tension on the endless rope will be even throughout, and it will not be required to
be so tight as a strap, and even should it become too slack it cannot fall off the
small pulley owing to the grooved form thereof.
The friction and wear on the bearings will consequently be less than hitherto,
and the liability to break owing to undue strain will be greatly reduced, and a
considerable economy will be thereby effected.
Dated this 7th dex of Anril 1803
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improved Means for Driving the Fans of Machines used for
Forming Fur Hat Bodies.
I THOMAS MOORES the younger, of Carlton House Gorton in the County of
Lancaster, Hat Manufacturer, 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 relates to the means for driving the exhaust fans used in machines
for forming fur hat bodies to cause the fur to adhere to the perforated cones upon
which the bodies are formed.
These fans are mounted on vertical spindles which are driven at a high velocity,
and the usual method of driving them is by a crossed strap passing round a small

page_text: plain pulley on the fan spindle, and round a larger plain pulley upon the horizontal
cross shaft which passes underneath the centre of the machine.
The objections to this method of driving are that if the strap becomes at all
loose it slips and does not drive the fan, and sometimes even falls off the small
pulley altogether, and if it is too tight the strain is too great and the strap soon
becomes broken thus causing very great expense and loss of time in the frequent
renewal thereof.
The object of my invention is to remedy these defects and the nature of my
invention will be readily understood on reference to the annexed sheet of drawings
and the following explanation thereof.
Fig. 1 on the drawings is a side elevation of a fur hat body forming machine
showing the application of my invention thereto and Figs. 2 and 3 are plan views
or diagrams illustrating the method of leading the driving band round the
pulleys.
a is part of the framing of the machine,
6 the perforated cone or former and c the fan on the vertical shaft d.
According to my invention I use a double-grooved small pulley e on the vertical
fan shaft and a corresponding double-grooved larger pulley f (see Figs. 1 and 2)
on the horizontal driving shaft g, and I drive by means of a single continuous
endless rope or band which is crossed and led round the four grooves of the two
pulleys e and as shown, in such a way as to drive the fan c without any two
portions of the rope or band h coming into contact, so that it will drive with a
minimum amount of friction, the tension of the endless rope or band h will be even
throughout and it will not be required to be so tight as a strap, as it takes a
double grip of the small fan pulley e, and even if it should become too slack it
cannot fall off the small pulley e owing to the grooved form thereof.
The friction on the bearings will consequently be less than hitherto, and the
liability to break the driving band owing to undue strain will be greatly reduced
and a considerable economy will be thereby effected.
Sometimes in order to ensure the most perfect driving and to maintain the
driving rope or band h always at the required tension I make the larger pulley f
on the horizontal driving shaft g with three grooves as shown at Fig. 3 and I lead
the driving band h round a tightening pulley i (as shown in dotted lines on Fig. 1)
which pulley is carried in a slotted bracket k and is kept always at the same
tension by a weighted lever or a spring (not shown on the drawing) which allows
the driving band to shorten or elongate according to the state of the atmosphere
without altering the desired amount of tension, or the tightening pulley i may be
otherwise adjustable.
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 :-
The improved means for driving the fans of machines used for forming fur hat
bodies consisting of the system of double grooved pulleys and endless rope or band
(either with or without a tightening or tension pulley) arranged substantially as
hereinbefore described and illustrated by the drawings annexed.
Daded this fil 1
L
2001
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicant.