IMPROVEMENTS IN MACHINERY FOR SPINNING TOBACCO
Year: 1876

page_text: LETTERS PATENT to Henry Wilson Kelly and Richard Lloyd Wright, both
of North Earl Street, Dublin, in the County of Dublin, Ireland, Mechanical
Engineers, for the Invention of " IMPROVEMENTS IN MACHINERY FOR SPINNING
TOBACCO."
Scaled the 22nd June 1877, and dated the 28th December 1876.
PROVISIONAL SPECIFICATION left by the said Henry Wilson Kelly and
Richard Lloyd Wright at the Office of the Commissioners of Patents on the
28th December 1876.
HENRY WILSON KELLY and RICHARD LLOYD WRIGHT, both of North Earl Street,
Dublin, in the County of Dublin, Ireland, Mechanical Engineers.
"IMPROVEMENTS
IN MACHINERY FOR SPINNING TOBACCO."
This Invention has for its object improvements in machinery for spinning tobacco.
In such machinery, according to our said Invention, we employ a pair of endless
bands of steel or other suitable material running on pullies placed in such a position
as to cause the said bands to traverse each other in contrary directions in a plane
horizontal to each other but not parallel to each other. The said pullies work on
spindles carried in brackets, and these brackets are supported and operated upon by
a suitable arrangement of gearing so adjusted as to admit of the aforesaid bands
being altered in their relation towards each other in order to obtain the various
angles required for spinning different sizes of tobacco.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Henry Wilson Kelly and Richard Lloyd Wright in the Great Seal
Patent Office on the 26th June 1877.
HENRY WILSON KELLY and RICHARD LLOYD WRIGHT, both of North Earl Street,
Dublin, in the County of Dublin, Ireland, Mechanical Engineers. "IMPROVEMENTS
IN MACHINERY FOR SPINNING TOBACCO."

page_text: or pivot fof the frame 3, and is capable of being raised or lowered by means of the
tommy-headed screw f¹ resting on the flange f* (seo Fig. 1).
The tension of the aforesaid endless bands may be regulated by means of tommy-
headed screws 8, 8, which serve to increase or decrease the distance between tho
brackets or standards which carry the pulleys (see Fig. 5).
In order that the angle at which the endless bands traverse each other may be
altered to suit the thickness of the twist of tobacco to be spun the transverso
horizontal axis b¹ is supported in bearings sliding on brackets or slide beds 7, 1, so
that when the angle of the endless bands is altered the said transverse horizontal
axis will move forward towards or from the common centre or pivot fof the frames
3 and 4, while at the same time the vertical shafts 1 and 2 with their respective
sets of bevelled wheels will move from or towards each other to the required extent.
The arrangement of bevelled gearing for thus operating the machine will be best
understood on reference to the plan, Fig. 4.
To keep the pinion of the belt pulloy d'in gear with the spur wheel b, the spindle
of the pinion and pulley works in a curved slot, as shown separately in Fig. 11, 80
that when the said spur wheel moves forward with the transverse horizontal axis
to which it is keyed the belt pulley will fall accordingly in the curved slot or
groove, thereby maintaining the pinion constantly in gear with the spur wheel,
notwithstanding the change in position of the latter. This is illustrated in Figs. 6
and 7, the dotted lines in Fig. 6 showing the position assumed by the belt pulley
and pinion when the spur wheel is moved forward.
In order to support the pressure on the bands during the operation of spinning,
two small standards (Figs. 8 and 9) are supported on lateral projections p¹, p², of
the frame 3, and carry a roller which bears against the under side of the inner
endless band. A second roller may be caused to rest on the top surface of the
outer endless band, being carried by an arm H (Fig. 12) springing from a bracket
attached to one end of the frame 4. By means of these two rollers the pressure
upon the work passing between the bands may be regulated.
The flyer fraine in which the reel is mounted is supported in bearings on the
nain frame, and is driven by the friction pulley t working against the face of the
disc y; this friction pulley t has a traversing motion across the diameter of the
disc, and its position is adjusted by the screw t¹ which carries a fork, the prongs of
which span a narrowed portion of the boss of the friction pulley t.
By thus
adjusting the position of the pulley on the face of the disc the speed at which the
flyer frame rotates may be varied as required. The screw is operated by the hand
wheel y' (see Fig. 2), and the pressure of the said friction pulley against the face of
the disc may be regulated by the hand wheels y*.
The reel receives the necessary rotary motion to cause it to wind up the spun
tobacco by means of an endless cord r passing around the pulley v on the axis of
the reel and over guide pulleys a, a, to a pulley g which is capable of turning on
the neck of the flyer frame. A flange is attached to the boss of this pulley g which
is encircled by a brake ring hinged to the main frame at g and provided with a
lever g', by means of which the rotation of the pulley g may be impeded and the
retarded motion thereby transmitted through the cord to the reel; by thus increasing
or decreasing the pressure on the lever g¹ the motion of the reel may be accelerated
or retarded as may be required.
Having thus described the nature of our said Invention and the manner of
carrying the same into practical effect, we would have it understood that, save and
except us herein-after mentioned, we do not intend to claim any of the mechanical
parts of the apparatus herein-before shewn and described when taken separately
and apart from the combination and application thereof in manner and for the
purpose herein described; but what we consider to be novel and original and
therefore claim as secured unto us by the herein-before in part recited Letters Patent
is, the combination of parts constituting the improved machinery, constructed,
arranged, and operating as shewn in and described with reference to the accom-

page_text: panying Drawings for spinning tobacco by the use of endless bands traversing each
other as explained.
In witness whereof, I, the said Henry Wilson Kelly, have hereunto set my
hand and seal, this Twenty-fifth day of June, in the year of our Lord One
thousand eight hundred and seventy-seven.
Witness,
J. A. FAHIE,
2, Nassau Street,
Dublin.
HENRY WILSON KELLY. (L.S.)