Improvements connected with Metallic Drawing Rollers for Fibrous Materials.
Year: 1893

page_text: Date of Application, 11th Nov., 1893
Complete Specification Left, 2nd Aug., 1894-Accepted, 15th Sept., 1894
PROVIDIUNAL DI MUITO
Improvements connected with Metallic Drawing Rollers for
Fibrous Materials.
We,
BENJAMIN ALFRED DOBSON, Engineer, of Kay Street Works, Bolton, in
the County of Lancaster, and GEORGE PALEY, Cotton Spinner, of Preston, in
the said county, do hereby declare the nature of this invention to be
follows:-
as
Our invention has reference to what are known as corrugated drawing rollers for
fibrous materials.
When the ordinary fluted bottom roller and the leather covered top roller are
replaced by corrugated metallic rollers it is advisable, as the rollers are weighted,
in order to prevent risk of damage to the staple, that the teeth or points of the
flutes on one roller should not be allowed to touch the bottom of the corresponding
recesses between the teeth or flutes of the opposite roller.
We prevent such contact according to our invention by the following improved
arrangement:
At each end of the corrugated top roller we place a closely fitting bush or
sleeve with an arm shaped and prolonged so as to clear and come below the bottom
roller somewhere about the position usually occupied by the ordinary weight
hook, and to this arm we connect a screwed. rod from which the usual weights are
suspended at a point below the roller beam. The screwed rod may be connected
to the arm in various ways for example:-The end of the arm may be at a right
angle or thereabouts to the line of the centres of the top and bottom rollers, and
through a hole in this right angle projection one end of the screwed rod is passed
and rigidly fixed in position by means of nuts on both the under and upper side of
the projection. The screwed rod also passes freely through a hole in the roller
beam and on the rod on the upper side of the beam are placed a nut and locknut.
These nuts are so adjusted that the weight of the top corrugated roller and sleeves
is supported by the roller beam. By adjusting the nut and locknut on the upper
side of the roller beam, the distance from the point of the tooth on one roller to
the bottom of the corresponding flutes on the opposite roller can be exactly
regulated and when once set will rarely require changing.
Another mode of connecting the screwed rod to the arm of the sleeve consists
in pivoting or jointing them together the locknuts bearing on the roller beam as
previously described; or as an alternative we can employ the ordinary weight
hook and wire; but the wire would be screwed and furnished with locknuts to
bear on the upper side of the roller beam. In this latter case the weight of the
top roller might cause the teeth to bottom between the flutes; but as the nuts
bearing on the roller beam would take off all weight, except that of the top roller,
there would be no injury to the fibre, and this arrangement would be particularly
applicable to cases where the top roller consists of two bosses weighted in the
middle.
Dated this 10th day of November 1898.
H. B. BARLOW & GILLETT,
Agents for Applicants.

page_text: Improvements connected with Metallic Drawing Rollers for
Fibrous Materials.
We, BENJAMIN ALFRED DOBSON, Engineer, of Kay Street Works, Bolton, in
the County of Lancaster, and GEORGE PALEY, Cotton Spinner, of Preston, in
the said county, do hereby declare the nature of this invention and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement :—
Our invention has reference to what are known as corrugated drawing rollers for
fibrous materials.
When the ordinary fluted bottom roller and the leather covered top roller are
replaced by corrugated metallic rollers it is advisable, as the rollers are weighted,
in order to prevent risk of damage to the staple, that the teeth or points of the
flutes on one roller should not be allowed to touch the bottom of the corresponding
recesses between the teeth or flutes of the opposite roller.
We prevent such contact according to our invention by the following improved
arrangement
-
At each end of the corrugated top roller we place a closely fitted bush or
sleeve with an arm shaped and prolonged so as to clear and come below the
bottom roller somewhere about the position usually occupied by the ordinary
weight hook, and to this arm we connect a screwed rod from which the usual
weights are suspended at a point below the roller beam. The screwed rod may be
connected to the arm in various ways; and in order that our invention may be
fully understood and readily carried into effect we have on the accompanying sheet
of drawings illustrated three such modes of carrying the same into effect.
Figs. 1, 2 and 3 are end views of a pair of top and bottom corrugated metallic
drawing rollers showing the aforesaid three different modes of weighting the same
according to our invention, and Fig. 4 is an enlarged view of the flutes on the
rollers Figs. 1 and 2.
In Fig. 1, a designates the top and 6 the bottom corrugated metallic drawing
roller, c the closely fitting bush or sleeve placed on one end of the top roller a and
furnished with an arm.c which extends downward below the bottom roller b and
terminates in a projection cat a right angle or thereabouts, to the line of the
centres of the top and bottom rollers; a similar. sleeve c is fitted at the other end
of the top roller a; through a hole in the projection el one end of a screwed rod d
is passed and rigidly fixed in position by means of nuts e on both the under and
upper side of the projection. The rod d also passes freely through a hole in the
roller beam f, and on the upper side of the beam are placed a nut and locknut g.
These nuts g are so adjusted that the weight of the top corrugated roller a and
sleeves c is supported by the roller bean f. The weight h for weighting the top
roller a is in this case connected to the rod d by a hooked wire i. By adjusting
the nut and locknut 9 on the upper side of the roller beam f the distance froin the
point of the tooth on one roller to the bottom of the corresponding flutes on the
opposite roller (see Fig. 4) can be exactly regulated and when once set will rarely
require changing.
In Fig. 2 the arrangement is substantially the same as in Fig. 1 the only
difference being that the rod d is jointed at to the arm c¹ and the weight his
hooked directly on to the rod d.
In Fig. 3 the weighted rod d is suspended from the hooked end of the arm c¹.
In this case the weight of the top roller a might cause the teeth to bottom between
the flutes instead of remaining clear as in each of the preceding arrangements and
as illustrated by the detail view, Fig. 4; but as the nuts g bearing on the roller
beam would take off all the weight, except that of the top roller, there would

page_text: be no injury to the fibre. And this arrangement would be particularly applicable
to cases where the top roller consists of two bosses weighted in the middle.
In place of the nuts y we might employ fixed collars on the rods d and obtain
the required adjustment by means of fitting pieces or washers placed on the roller
beam below such collars.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
1. The combination with corrugated metallic top and bottom rollers, of a sleeve
(or sleeves) fitted on the top roller, and furnished with an arm to which is
connected a weighting rod in such manner that the flutes on one roller will not
touch the bottom of the corresponding recesses in the other roller or will not
touch with more than the weight of the top roller as described.
2. The several combinations with the top corrugated roller a, of the sleeve c
(or sleeves) its arm c¹, connected weighted rod d, and locknuts g or equivalent part
bearing on the roller beam f all substantially as and for the purposes described
with reference to the drawings.
Dated this 1st day of August 1894.
H. B. BARLOW & GILLETT,
17, St. Ann's Square, Manchester, Agents for Applicants.