An Improved Means of Coupling together Shafts, Rollers and the like.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
An Improved Means of Coupling together Shafts, Rollers and
the like.
GEORGE HENRY MILWARD, 19, Agnes Street, The Meadows, Nottingham,
Mechanician, do hereby declare the nature of this invention to be as follows:-
An improved method of coupling together shafts rollers & the like-& the
appartus for making the same, more especially as applicable to the fluted rollers,
generally used in textile machinery, & by means of what is known, as he & she or
socket & spigot ends. The square hole & square end in general use necessitates, the
marking, fitting & turning of each roller to its fellow, & apart from the increased
cost so entailed in the manufacture, there is considerable loss in repairs & replacing
as the rollers on both sides, must be removed to have the one fitted in, & the frame
or mule kept standing, while this is being done.
The purpose of this invention is-in the first place, to make such rollers inter-
changeable & secondly, from the coupling being truly central, thus allowing the use
of an improved system of manufacture, admitting of the further operations of
turning, spacing, fluting, gaugeing &c. being performed more accurately, & with
machine tools more automatic in character as well as the present costly hand labour
dispensed with.
For this purpose the socket or she end of the shaft or roller, is bored with a taper
or conical hole, having a flat end, or the holes may be parrallel, with the slightest
draught. At a distance from the outer end, proportional to the dia, a groove or
clearance is cut & in this space, i.e. from the outer end, to the said groove, one, two,
or more spiral grooves or threads are cut, the said grooves or threads may be
V shaped, square, or round top & bottom, & of such length or incline as to allow of
the he or spigot end, making from one half to three fourths of a revolution or turn
in locking or coupling them together-The space from the spiral or thread, to the
outer end of spigot or he end, to be turned to fit the socket or she part & the flat
end to butt against the end or bottom of the hole.
The work for this coupling may be done, in ordinary machine tools.
The spirals or threads would need to be reversed, in accordance with the end the
shaft or roller was driven from, whether right-hand or left.
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page_text: An Improved Means of Coupling together Shafts, Rollers and
the like.
I, GEORGE HENRY MILWARD, of 19, Agnes Street, The Meadows, Nottingham,
Mechanician, do hereby declare the nature of this invention and in what manner
the same is to be performed to be particularly described in and by the following
statement:-
This invention relates to an improved means of coupling together, shafts, rollers
and the like, and the apparatus for making the same.
"
It is more especially applicable to the fluted rollers generally used in textile
machinery, and by what is known as "be" and "she or socket and spigot ends.
The square hole and square end in general use necessitates the marking fitting
and turning of each roller to its fellow, and apart from the increased cost so
entailed in manufacture, there is considerable loss in repairs and replacing, as the
rollers on both sides must be removed to have the one fitted in, and the frame
or mule kept standing while that is being done.
The purpose of this invention is in the first place, to make such rollers inter-
changeable, and secondly from the coupling being truly central, thus allowing the
use of an improved system of manufacture, admitting of the further operations of
turning, spacing, fluting, gaugeing, &e. being performed more accurately and with
machine tools more automatic in character, as well as the present costly hand-labour
being dispensed with.
My invention will be readily understood from the following description on
reference to the accompanying drawings.
Fig. 1 is a side elevation of the spigot end of roller made according to my
invention. Fig. 2 shews the socket end in elevation. Fig. 3 shews the two ends
combined, in section, and Fig. 4 is a transverse section of the spigot end taken
on the line A-B, Fig. 3.
The socket or she end of the shaft or roller a is bored with a taper or conical
hole A see Figs. 2 and 3, having a flat end (or the hole may be bored parallel
with the slightest draught). At a distance from the outer end, proportioned to
the diameter, a groove or clearance b is cut, and in the space, i.e; from the
outer end, to the said groove b, one two or more (say three) spiral grooves or threads c
are cut; the said grooves or threads c may be V-shaped, square, or round top and
bottom, and of such length or incline, as to allow of the he or spigot end a², making
from half to three-fourths of a revolution or turn, in locking or coupling the two
ends together. The space d, from the spiral or thread c¹ to the outer end of
spigot a² or "he" end, is turned to fit the socket or she part, and the flat end to butt
against the end or bottom of the hole; or, in the case of the conical socket and spigot,
the latter need not butt against the end of the hole if the cone is such that the parts
cannot bind too tightly together.
The work for this coupling may be done by any suitable machine tools.
The spirals or threads would need to be reversed in accordance with the end from
which the shaft (or rollers) was driven, whether right hand or left.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what I
claim is :-
The improved method of coupling rollers shafts or the like together end to end
consisting in the formation of a screw thread or threads at the root of the spigot at

page_text: the "he" end of the roller or shaft and a corresponding thread at the outer end of
the socket, substantially as herein before described.
Dated this 24th day of November 1897.
GEO. DAVIES & SON,
Agents for the Applicant, 4, St. Ann's Square, Manchester.