IMPROVEMENTS IN SHUTTLE WHEELS FOR LOOMS FOR WEAVING
Year: 1878

page_text: LETTERS PATENT to William Mitchell, of Killinghall Mill, Ripley, in the
County of York, Shuttle Maker, for the Invention of "IMPROVEMENTS IN
SHUTTLE WHEELS FOR LOOMS FOR WEAVING."
Sealed the 2nd August 1878, and dated the 9th February 1878.
PROVISIONAL SPECIFICATION left by the said William Mitchell at the
Office of the Commissioners of Patents on the 9th February 1878.
WILLIAM MITCHELL, of Killinghall Mill, Ripley, in the County of York, Shuttle
Maker. "IMPROVEMENTS IN SHUTTLE WHEELS FOR LOOMS FOR WEAVING.".
The object of this Invention is improvements in the construction of shuttle wheels
for loomis for weaving.
Shuttle wheels as at present constructed consist of a wooden wheel or roller on each
end of which is a metal hoop fixed to the wooden wheel by pins passing through the
periphery of the hoop. These pins frequently come out and cut the warp during
the passage of the shuttle, and the hoops themselves frequently become loose from
the contraction of the wood in getting dry, and from the same cause the axle or
centre of the wheel is also liable to become loose.
Now by my improvements these defects are obviated, and in constructing a shuttle
wheel according to my Invention I first put into each end of the ordinary wooden
wheel, a small metal hoop which prevents the expansion of the wood when and
after the axle or centre is driven in, thereby causing it to hold much tighter than
hitherto.
Instead of the hoops heretofore employed, I employ metal caps or covers fitting
over the ends of the wooden wheels, such caps or covers being fixed either by screws
or rivets to the ends of the wheels, thus avoiding the use of pins on the peripheries

page_text: of the hoops or rims of the caps, and at the same time preventing the said caps
from becoming loose, as is the case with the ordinary hoops; these caps also shut
in the herein-before described small hoops in the ends of the wheel, and prevent
them from coming out.
:'
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Mitchell in the Great Seal Patent Office on the 7th August
1878.
WILLIAM MITCHELL, of Killinghall Mill, Ripley, in the County of York, Shuttle
Maker. "IMPROVEMENTS IN SHUTTLE WHEELS FOR LOOMS FOR WEAVING."
The object of this Invention is improvements in the construction of shuttle wheels
for looms for weaving.
Shuttle wheels as at present constructed, consist of a wooden wheel or roller on
each end of which is a metal hoop fixed to the wooden wheel by pins passing through
the periphery of the hoop. These pins frequently come out and cut the warp during
the passage of the shuttle, and the hoops themselves frequently become loose from
the contraction of the wood in getting dry, and from the same cause the axle or
centre of the wheel is also liable to become loose.
Now, by my improvements, these defects are obviated, and in constructing a shuttle
wheel according to my Invention, I first put into each end of the ordinary wooden
wheel a small metal hoop, which prevents the expansion of the wood when and after
the axle or centre is driven in, thereby causing it to hold much tighter than
hitherto.
Instead of the hoops heretofore employed I employ metal caps or covers fitting
over the ends of the wooden wheels, such caps or covers being fixed either by rivets
or screws to the ends of the wheels, thus avoiding the use of pins on the peripheries
of the hoops or rims of the caps, and at the same time preventing the said caps from
becoming loose, as is the case with the ordinary hoops; these caps also shut in the
herein-before described small hoops in the ends of the wheel, and prevent them from
coming out.
But to make my Invention better understood, I will proceed to describe the same
by reference to the accompanying Drawing.
Figure 1 is an elevation of the ordinary wooden wheel or roller; Figure 2 is an
end elevation of the same, b shewing the groove or channel formed therein, in
which I put the small metal hoop or ring c, shewn in elevation in Figure 3ª,
or I may use a piece of wire coiled into a double ring, as shewn in Figure 3.
Figure 4 is a section of the wheel or roller à, shewing the hoops c, c, placed
in the grooves b in the ends thereof, and shewing also the axle or centre d,
the rings c, c, preventing the expansion of the wood of the roller when the
axle or centre d is driven in.
Figures 5 and 6 are end elevations of the metal caps or covers I employ for

page_text: fitting over the ends of the wooden wheel or roller a; Figure 7, side elevation,
and Figure 8 section of same. These caps or covers g have three, or other suitable
number of holes e, e, e, through which pass the rivets f,f, f, for fixing the caps or
covers 9 to the ends of the wheel or roller a, the said rivets passing entirely through
the roller, so as to rivet both caps to the ends of the roller or wheel a (or screws may
be employed).
The part of the wheel or roller a between the inner edges of the caps or covers g,
is then turned down to the proper size and shape, as seen in Figure 9, which is an
elevation of a shuttle wheel complete, made according to my Invention.
Figure 10 is an end view of Figure 9; and Figure 11, section of same.
The hole in the caps or covers g is for the purpose of receiving a wire pin to
act as a catch while the wheel a is being turned up.
Having thus described my said Invention, and the manner of performing the
same, what I claim is, the improvements in shuttle wheels for looms for weaving, as
herein-before described and represented in the accompanying Drawing.
In witness whereof, I, the said William Mitchell, have hereto set my hand
and seal, this Fifth day of August, in the year of our Lord One thousand
eight hundred and seventy-eight.
WILLIAM MITCHELL. (L.S.)