A NEW OR IMPROVED MODE OF CONNECTING OR COUPLING TOGETHER THE FLUTED DRAWING ROLLERS OF SPINNING MACHINES OR FRAMES
Year: 1879

page_text: LETTERS PATENT to Edwin Powley Alexander, of 14, Southampton Buildings, in
the County of Middlesex, Consulting Engineer and British and Foreign Patent
Agent, for the Invention of "A NEW OR IMPROVED MODE OF CONNECTING
OR COUPLING TOGETHER THE FLUTED DRAWING ROLLERS OF SPINNING
MACHINES OR FRAMES." A communication from abroad by the Firm of
Constant, Peugeot, & Company, of Paris, in the Republic of France, Manu-
facturers.
PROVISIONAL SPECIFICATION left by the said Edwin Powley Alexander
at the Office of the Commissioners of Patents on the 25th February 1879.
EDWIN POWLEY ALEXANDER, of 14, Southampton Buildings, in the County of
Middlesex, Consulting Engineer and British and Foreign Patent Agent.
"A NEW
OR IMPROVED MODE OF CONNECTING OR COUPLING TOGETHER THE FLUTED
DRAWING ROLLERS OF SPINNING MACHINES OR FRAMES." A communication from
abroad by the Firm of Constant, Peugeot, & Company, of Paris, in the Republic of
France, Manufacturers.
This Invention relates to a new or improved mode of coupling or connecting
together end to end the fluted drawing rollers of spinning machines or frames, the
object being to avoid the evil results arising from looseness in the said couplings or
connections owing to wear of the parts or otherwise, producing "back-lash."
According to this Invention the rollers of the row or column are coupled end to end
by the aid of a combination of cylindrical concentric and slightly eccentric shoulders
or journals fitting into corresponding concentric and eccentric sockets in the adjoining
roller in lieu of using flat sided or square or other equivalent shaped coupling parts
as heretofore. The cylindrical parts are perfectly concentric with the rollers, whilst
the eccentric part of the coupling which is very slightly eccentric is situate between
the two cylindrical concentric portions. When these parts are introduced into the

page_text: corresponding socket or recess in the end of the adjoining roller and turned slightly
they will by the action of the eccentric portion or portions of the coupling become
firmly fixed or tightened together, thus preventing any tendency to work loose and so
producing "back lash." If desired one or more eccentric parts may be formed on
the couplings and made slightly eccentric on opposite sides of their diameters, the
sockets which receive them being of corresponding formation. By the before
mentioned mode of coupling the motion is at once transmitted from end to end of the
row or series of rollers, the whole moving simultaneously without stoppages or
retardation, which frequently occurs, and in the old method of coupling resulting in
breakages of the thread and occasional renewal of the word couplings.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Edwin Powley Alexander in the Great Seal Patent Office on the
14th August 1879.
EDWIN POWLEY ALEXANDER, of 14, Southampton Buildings, in the County of
Middlesex, Consulting Engineer and British and Foreign Patent Agent. "A NEW
OR IMPROVED MODE OF CONNECTING OR COUPLING TOGETHER THE FLUTED
DRAWING ROLLERS OF SPINNING MACHINES OR FRAMES." A communication from
abroad by the Firm of Constant, Peugeot, and Company, of Paris, in the Republic
of France, Manufacturers.
The said Invention relates to a new or improved mode of coupling or connecting
together end to end the fluted drawing rollers of spinning machines or frames, the
object being to avoid the evil results arising from looseness in the said couplings or
connections owing to wear of the parts or otherwise, producing back-lash.
According to this Invention the rollers of the row or column are coupled end
to end by the aid of a combination of cylindrical concentric and slightly eccentric
shoulders or journals fitting into corresponding concentric and eccentric sockets in
the adjoining roller in lieu of using flat sided or square or other equivalent shaped
coupling parts as heretofore. The cylindrical parts are perfectly concentric with
the rollers, whilst the eccentric part of the coupling, which is very slightly eccentric,
is situate between the two cylindrical concentric portions. When these parts are
introduced into the corresponding socket or recess in the end of the adjoining roller
and turned slightly they will by the action of the eccentric portions of the coupling
become firmly fixed or tightened together, thus preventing any tendency to work
loose and so producing "back-lash."
If desired one or more eccentric parts may be formed on the couplings and made
slightly eccentric on opposite sides of their diameters, the sockets which receive
them being of corresponding formation.
By the before mentioned mode of coupling the motion is at once transmitted from
end to end of the row or series of rollers, the whole moving simultaneously without
stoppages or retardation, which frequently occurs under the old method of
coupling, resulting in breakages of the thread and occasional renewal of the worn
couplings.
And in order that the said Invention may be fully understood I shall now proceed
more particularly to describe the same, and for that purpose shall refer to the
several Figures on the explanatory Sheet of Drawings hereunto annexed, the same
letters of reference indicating corresponding parts in all the corresponding
Figures.
Figures 1 and 3 of the Drawings represent full sized views of the junction
ends of two drawing rollers coupled or joined together according to this Invention.
The roller E, Figure 1, is formed with an end A, D, which enters without play into
the roller F. The parts A and D are concentric with the axis of the roller E and
are perfectly round, as are also the cavities which receive them in the roller F. The
part B is slightly eccentric and enters an eccentric cavity of the same size made in
the roller F. The rotary movement of the roller E would not be communicated to
the roller F if the eccentric part B were not there. The parts A and B turn freely
in the roller F, but the eccentric part B in its corresponding eccentric socket is only
free to follow this movement to a very limited extent, hence results a secure and
tight locking together of the two rollers when transmitting the rotation to F. As
the row of rollers moves only in the same direction this locking will remain fixed
and invariable, thus avoiding all cause of wear of the coupling or connecting
parts.
Figure 3 represents the same kind of coupling, but more complicated, as instead
of a single eccentric, which bears all the strain on one side, there are two eccentrics B¹

page_text: and C in opposite positions. It may be found convenient in some cases to equalize
or divide the strain in this manner. It is needless to observe that in this latter
modification, as in the previous one, the sockets or cavities which receive the eccen-
trics are themselves eccentric in the same position to agree with the eccentric parts,
and that the dimensions of the parts will vary with the size of the rollers.
Figures 2 and 4 represent end views of the couplings for the two modifications
previously described.
Having now described and particularly ascertained the nature of the said Inven-
tion, and the manner in which the same is or may be used or carried into effect, I
would observe in conclusion that what I consider to be novel and original, and
therefore claim as the Invention secured to me by the hereinbefore in part recited
Letters Patent is,―
The modo of connecting or coupling the drawing rollers of spinning machines
by the combination of concentric and eccentric parts fitting into corresponding
cavities or sockets, substantially as hereinbefore described, and illustrated by the
Drawings.
In witness whereof, I, the said Edwin Powley Alexander, have hereunto
set my hand and seal, this Thirteenth day of August, in the year of our
Lord One thousand eight hundred and soventy nine.