IMPROVEMENTS IN COUPLING ROLLER OR OTHER SHAFTS
Year: 1878

page_text: LETTERS PATENT to Thomas Ellison Smith, of the Firm of Smith & Sons, Royd
Works, Keighley, in the County of York, Machine Maker, for the Invention
of "IMPROVEMENTS IN COUPLING ROLLER OR OTHER SHAFTS."
1
1016
Order of the Lord Chancellor
Works, Keighley, in the County of York, Machine Maker, for the Invention
of "IMPROVEMENTS IN COUPLING ROLLER OR OTHER SHAFTS."
Sealed the 11th February 1879, in pursuance of an Order of the Lord Chancellor,
and dated the 3rd August 1878.
PROVISIONAL SPECIFICATION left by the said Thomas Ellison Smith at the
Office of the Commissioners of Patents on the 3rd August 1878.
THOMAS ELLISON SMITH, of the Firm of Smith & Sons, Royd Works, Keighley,
in the County of York, Machine Maker. "IMPROVEMENTS IN COUPLING ROLLER
OR OTHER SHAFTS."
The object of my Invention is to connect together in a simple, effective, and
inexpensive manner, the rollers or shafts used in preparing, spinning, or other
machines in such a manner that when the said rollers or shafts are coupled
together, each section of the rollers or shafts will be true with each other.
I accomplish my object in the following manner:-At one end of each section of
roller or shaft I bore a hole in the centre a certain distance longitudinally with the
axis of the same, such a diameter proportionate to the size of the roller or shaft.
I then extend the hole in the same direction, but smaller in diameter; this part of
the hole that is extended I cut out square or angular. The other end of each roller
or shaft I reduce to the diameter to fit the larger portion of the hole before named,
this reduced portion is true with the external diameter of the roller or shaft, the
end of the reduced part is shaped to fit the square or angular portion of the hole;
when the ends of the rollers or shafts are put together; the cylindrical portion of
the reduced end, fitting the larger diameter of the hole, will keep the rollers or
shafts true with each other, and the square or angular part will connect the same
together, so that by the combination of the cylindrical and square or angular ends
on the rollers or shafts fitting into each other when the end roller or shaft is
actuated, the whole line will move, and each section of the line will be true with
each other.
:

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Thomas Ellison Smith in the Great Seal Patent Office on the 11th
February 1879.
THOMAS ELLISON SMITH, of the Firm of Smith & Sons, Royd Works, Keighley,
in the County of York, Machine Makers. "IMPROVEMENTS IN COUPLING ROLLER
OR OTHER SHAFTS."
The object of my Invention is to connect together in a simple, effective, and
inexpensive manner, the rollers or shafts used in preparing, spinning, or other
machines in such a manner that when the said rollers or shafts are coupled
together, each section of the rollers or shafts will be true with each other.
I accomplish my object in the following manner :-At one end of each section of
the roller or shaft I bore a hole in the centre a certain distance longitudinally with
the axis of the same, such a diameter proportionate to the size of the roller or shaft.
I then extend the hole in the same direction, but smaller in diameter; this part of
the hole that is extended I cut out square or angular. The other end of each
roller or shaft I reduce to the diameter to fit the larger portion of the hole before
named, this reduced portion is true with the external diameter of the roller or
shaft; a certain length of the end of the reduced part is shaped to fit the square or
angular portion of the hole before named, and when the ends. of the rollers or shafts
are put together, the cylindrical portion of the reduced end fitting the larger
diameter of the hole will keep the rollers or shafts true with each other, and the
square or angular portion will key or connect the rollers or shafts together, so that
by the combination of the cylindrical and square or angular ends of the rollers or
shafts fitting into the combined cylindrical and square or angular holes as described,
the shafts or rollers are connected together, and when the end shaft or roller is
actuated, the whole line of shafts or rollers will move, and each section will be true
with each other.
Such being the nature and object of this my Invention, I will now proceed to
describe the same in detail, and in order that the same may be fully understood I
have hereunto annexed one Sheet of Drawings, and have marked the same with
letters of reference.
Figure 1 is a view of a portion of two rollers connected together by my improved
method which is shewn in section.
Figure 2 is a view of one end of a roller or shaft.
The roller A is bored at one end in the direction of the axis true with the cir-
cumference of the roller, and of such a size and distance proportionate to the
diameter of the roller; the length and diameter of this hole is indicated by the letters
C, C, and the extended portion of the hole which is smaller in diameter and cut out
square or angular is also true with the circumference and is indicated by the letter
D. The end of the roller B is turned true with the circumference of the same to
fit the portion of the hole C, C, and the part D¹ is shaped square or angular, as the
case may be, to fit the extended part of the hole D, so that when a series of rollers
or shafts are coupled together, as shewn in Figure 1, the same will be keyed
together and true with each other.
Having thus described the nature of my Invention, and the manner in which I
carry the same into effect, I would have it understood that what I believe to be
novel and original, and claim as the Invention secured to me by the herein-before
in part recited Letters Patent is,―
The combination of a cylindrical hole with a square or angular hole formed in the
end of a roller or shaft true with the circumference of the same, for the purposes
herein before described..
shaft
The combination of a cylindrical with a square or angular end of a roller or
that is true with the circumference of the same, fitting into the hole before
>

page_text: mentioned, substantially for the purposes herein-before described, and illustrated by
the accompanying Drawings.
In witness whereof, I, the said Thomas Ellison Smith, have hereunto set my
hand and seal, this Thirty-first day of January, in the year of our Lord One
thousand eight hundred and seventy-nine.
Witness,
JOHN WAUGH,
Engineering and Patent Offices,
Bradford,
Yorks.
T. E. SMITH. (L.S.)