Improvements in Apparatus for Drying Wool and other Fibres.
Year: 1893

page_text: Date of Application, 1st Dec.. 1893
Complete Specification Left, 3rd Sept., 1994-Accepted, 6th Oct., 1894
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Drying Wool and other Fibres.
1, JOHN DAWSON, of Mayfield, Milnrow, Rochdale, in the County of Lancaster,
Engineer, do hereby declare the nature of this invention to be as follows:
This invention relates to improvements in that class of apparatus for drying
wool and other fibres in which an inclined rotary cylindrical drying chamber or
drying cage is employed provided with internally projecting pins or prongs or their
equivalent for carrying the fibres partly round with the chamber and the object
of the invention is to facilitate the transfer of the fibres to the delivery apron or
delivery device.
For this purpose I mount the internally projecting pins or their equivalent upon
rocking shafts or rocking bars or the like and these rocking shafts are provided
with weighted arms tending to keep the said pins approximately vertical with their
free ends pointing in the direction of rotation as they are lifted by the rotation of
the chamber. The said weighted arms are fitted with anti-friction rollers arranged
to engage a curved piece fixed above or near the top of the chamber and adapted
to tip or more or less invert the said pins as they pass round at the top.
In this arrangement the fibres are held by the said pins until they are fully over the
delivery apron and then the inversion or movement of the pins immediately throws
or allows them to drop onto the apron. Stops are provided to prevent the weights
swinging too suddenly down when the said anti-friction rollers leave the curved
piece, or the curved piece may be continued to prevent this.
Instead of being provided with weights the said arms may be arranged to
engage a continuous curved piece formed and adapted to continuously control the
position of the pins.
The whole of the pins or prongs from one end of the chamber to the other may
be mounted and operated in the above mentioned manner.
Dated this 30th day of November 1893.
DRACUP & NOWELL,
Bradford, Agents.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Drying Wool and other Fibres.
1, JOHN DAWSON, of Mayfield, Milnrow, Rochdale, in the County of Lancaster,
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 :-
This invention relates to improvements in that class of apparatus for drying
wool and other fibres in which an inclined rotary cylindrical drying chamber or
drying cage is employed provided with internally projecting pins or prongs or
their equivalent for carrying the fibres partly round with the chamber and the
object of the invention is to facilitate the transfer of the fibres to the delivery
apron or delivery devices.
For this purpose I mount the internally projecting pins or their equivalent upon
rocking shafts or rocking bars or the like and these rocking shafts are provided
with weighted arms tending to keep the said pins approximately vertical with their
free ends pointing in the direction of rotation as they are lifted by the rotation of

page_text: the chamber. The said weighted arms are fitted with anti-friction rollers arranged
to engage a curved piece fixed above or near the top of the chamber and adapted
to tip or more or less invert the said pins as they pass round at the top.
In this arrangement the fibres are held by the said pins until they are fully over
the delivery apron and then the inversion or movement of the pins immediately
throws them, or allows them to drop, onto the apron. Stops are provided to prevent
the weights swinging too suddenly down when the said anti-friction rollers leave
the curved piece, or the curved piece may be continued to prevent this.
Reference is to be had to the accompanying sheet of drawings forming a part of
this Specification, in which similar letters of reference indicate corresponding parts
in each of the figures.
Figure 1, represents an elevation of the delivery end of a machine with my
improvements applied thereto.
Figure 2, represents a side view of the same with the cage partly in section.
The framework A, the revolving cage B and the endless delivery apron C are of
ordinary construction. The pins or prongs D at the delivery end of the machine
are mounted on the angle irons E each having a pivot a welded to its inner end and
a pivot e welded to its outer end. The pivots a are mounted in bearings F secured
to the framework B2 of the cage and the outer pivots are mounted in and pass
through bearings i formed in the annular casting G secured in the end of the cage.
An arm H is rigidly secured to the projecting end of each of the pivots
e and
a weight J is fixed on the ends of these arms. These arms and weights are so
arranged in relation to the prongs D that when at their lowest point or in the
position marked d Figure 1 the prongs are approximately vertical and as the cage
rotates in the direction of the arrow Figure 1 they retain the vertical position
until they touch the side of the cage or until the fibres supported by them touch
the side of the cage. When however the prongs reach the position shown by d²
Figure 1 the anti-friction roller K (one of which is mounted upon each of the
weights) engages the curved piece L which is so formed that as the prongs pass
round at the top they are inverted and thus release the fibres therefrom and
drop them on to the apron C. The studs N projecting from the casting G are
provided to engage the projections on the arms H and hold them in the position
shown after the anti-friction rollers leave the curved piece L until they reach
their lowest position. The curved piece L is mounted on the standards A
supported by the framework A. The commencement 12 of the curved piece is
only provided to engage the anti-friction rollers and guide them on to when
there are no fibres in the machine as in that case they swing nearer the centre of
the cage.
Instead of being provided with weights the said arms may be arranged to engage
a continuous curved piece formed and adapted to continuously control the position
of the pins.
The whole of the pins or prongs from one end of the chamber to the other may
be mounted and operated in the above mentioned manner instead of a comparatively
short length at the delivery end.
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. 1
claim is :
A cylindrical drying machine having the internal pins or prongs, particularly at
the delivery end, mounted on rocking shafts, or the like, arranged and operated
substantially as herein shown and described.
Dated this 30th day of August 1894.
DRACU
Bradford, Agents.