Improvements in Cloth Expanders used in connection with Bleaching, Dyeing, and similar Machines.
Year: 1891

page_text: Date of Application, 26th Feb., 1891
Complete Specification Left, 26th Nov., 1891-Accepted, 2nd Jan., 1892
PROVISIONAL SPECIFICATION.
Improvements in Cloth Expanders used in connection with
Bleaching, Dyeing, and similar Machines.
We, WILLIAM PICKUP, and WILLIAM KNOWLES, of Orchard Street,
Pendleton, in the County of Lancaster, Engineers, do hereby declare the nature of
this invention to be as follows:-
-
This invention relates to improvements in expanders used in connection with
bleaching, dyeing, calico printing and other similar machines for the purpose of
expanding all kinds of woven fabrics and has for its object to simplify the con-
struction of such expander and thereby decrease the cost of production and render
the same less liable to get out of order than heretofore has been the case.
To this end our improved cloth expander consists of a shaft supported at each
end by a bearing and made rotary adjustable therein by means of set screws. On
this shaft is placed to revolve loosely a tube turned on the outside, each end
thereof bearing against a grooved block or cam hereinafter referred to and being
bored out and fitted with phosphor bronze or other bushes. On the said tube are
keyed or otherwise fastened four or any other convenient number of discs or rings
of cast iron or any other suitable material, having eight or any other suitable
number of slots or grooves planed in the periphery thereof. On the middle of the
said tube is keyed or otherwise fastened a disc or ring of cast iron or any other
suitable material being plain on its periphery and serving as a support for the inner
ends of the bar or plate hereafter referred to, which are prevented from leaving
the said disc or ring by means of a ring of brass or other suitable material, fixed
over the same by means of pins passing between the respective ends of the said
bars or plates. In the aforesaid slots or grooves are arranged to slide longitudinally
a corresponding number of bars or plates of phosphor bronze or any other suitable
material, the outer surfaces of which are cut or grooved to form teeth according to
requirements. On each end of the aforesaid shaft is keyed or fastened a cap or end
which are turned true, both inside and out or otherwise, and have attached inside
respectively a grooved block or cam. The outer ends of the said bars or plates are
respectively furnished with a stud having an anti-friction bowl adapted to enter the
grooves of the aforesaid blocks or cams, which impart the required motion and
throw to the said bars or plates. The said cap or end serve the purpose of
fastening the grooved blocks or cams to the said shaft and also of keeping the
outer ends of the bars or plates in position in a radial sense.
To regulate the expansion of thic fabric, we pass the same underneath a roller
of brass or any other suitable material fixed parallel to the aforesaid bars or plates
on the said caps or ends. By slackening the set screws which hold the said shaft
in position in its bearings, the same as well as the caps or ends and grooved blocks
or cams, are permitted to be partially rotated, which causes the said roller to lift
the fabric off a portion of the said bars or plates thus imparting less expansion
thereto, or vice versú giving a full expansion.
Dated this 25th day of February 1891.
F. BOSSHARDT & CO.,
Agents to Applicants.

page_text: COMPLETE SPECIFICATION.
Improvements in Cloth Expanders used in connection with
Bleaching, Dyeing, and similar Machines.
We, WILLIAM PICKUP and WILLIAM KNOWLES, of Orchard Street,
Pendleton, in the County of Lancaster, Engineers, 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 :-
This invention relates to improvements in expanders used in connection with
bleaching, dyeing, calico printing and other similar machines for the purpose of
expanding all kinds of woven fabrics and has for its object to simplify the cou-
struction of such expanders and thereby decrease the cost of production and
-render the same less liable to get out of order than heretofore has been
the case.
And in order that our invention may be more fully understood we have caused
to be appended hereunto one sheet of drawings marked with letters of reference
indicating like parts in the various figures.
Fig. 1 is a longitudinal section, Fig. 2 an end view and Fig. 3 a cross section, at
line A-B, of our improved fabric expander.
Fig. 4 a plan of the middle portion of the sliding bars or plates belonging
thereto.
In carrying out our invention and referring to the figures generally, the
improved cloth expander consists of a shaft a supported at each end by a bearing b
and made rotary adjustable therein by means of set screws c. On this shaft a is
placed to revolve loosely, a tube d turned on the outside, each end thereof bearing
against a grooved block or came hereinafter referred to and being bored out and
fitted with phosphor bronze or other bushes f. On the tube d are keyed or
otherwise fastened, four or any other convenient number of discs or rings g of cast
iron or any other suitable material, having eight or any other suitable number of
slots or grooves planed in the periphery thereof. On the middle of the tube d is
keyed or otherwise fastened a disc or ring i of cast iron or any other suitable
material being plain on its periphery and serving as a support for the inner ends
of the bar or plate k hereafter referred to, which are prevented from leaving the
disc or ring by means of a ring of brass or other suitable material, fixed over
the same by means of pins m passing between the respective ends of the bars or
plates k. In the slots or grooves i are arranged to slide longitudinally a corre-
sponding number of bars or plates of phosphor bronze or any other suitable
material, the outer surfaces of which are cut or grooved to form teeth n according
to requirements. On each end of the shaft a is keyed or otherwise fastened a cap
or end o which are turned true, both inside and out or otherwise, and have attached
inside respectively a grooved block or cam e. The outer ends of the bars or plates k
are respectively furnished with a stud p having an anti-friction bowl adapted to
enter the grooves of the blocks or cams e, which impart the required motion and
throw to the bars or plates k. The caps or ends o serve the purpose of fastening
the grooved blocks or cams e to the shaft a by means of the bolts o', and also of
keeping the outer ends of the bars or plates in position in a radial sense.
リ
To regulate the expansion of the fabric r, we pass the same underneath a roller s
of brass or any other suitable material fixed parallel to the bars or plates k on the
caps or ends o, by means of the brackets t. By slackening the set screws c which
hold the shaft a in position in its bearings b, the same, as well as the caps or ends o
and grooved blocks or cams e, are permitted to be partially rotated, which causes
the rollers s to lift the fabric off a portion of the bars or plates k, thus imparting
less expansion thereto, or vice versa giving a full expansion."

page_text: Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, we declare that what
we claim is
"In cloth expanders used in connection with bleaching, dyeing and similar
machines,"
Ist. The general construction and arrangement of parts constituting our
improvements operating substantially as and for the purpose set forth.
g
2nd. The tube d, adapted to revolve loosely on the shaft a, having fixed thereon
discs or rings & 1, the peripheries of which are adapted to receive longitudinally
sliding toothed bars or plates k, in combination with grooved blocks or cams e
fixed inside caps or ends o having attached on their peripheries a roller s, the said
blocks or cams e, caps or ends o and rollers being rendered rotary adjustable on the
shaft a and the grooved blocks or cams e adapted to engage the outer end or
bowl g of the bars or plates and longitudinally actuate the same substantially as
and for the purpose specified.
Dated this 25th day of November 1891.
F. BOSSHARDT & Co.,
4, Corporation Street, Manchester, Agents.