AN IMPROVED METHOD OF AND APPARATUS FOR COATING WITH GELATINOUS COMPOUNDS THE DRAWING- ROLLERS AND OTHER CYLINDERS EMPLOYED IN SPINNING MACHINERY
Year: 1883

page_text: LETTERS PATENT to Edmund Edwards, of the firm of Edwards and Co:-
Patent Agents and Engineers, of 40 Southampton Buildings, Chancery Lane,
in the County of Middlesex for an Invention of "AN IMPROVED METHOD OF
AND APPARATUS FOR COATING WITH GELATINOUS COMPOUNDS THE DRAWING-
ROLLERS AND OTHER CYLINDERS EMPLOYED IN SPINNING MACHINERY" a
communication to him from abroad by Johann Appelt, of Reichenberg,
Bohemia, in the Empire of Austria
PROVISIONAL SPECIFICATION left by the said Edmund Edwards at the
Office of the Commissioners of Patents on the 31st July 1883.
"
EDMUND EDWARDS, of the firm of Edwards and Co:-, Patent Agents and
Engineers, of 40, Southampton Buildings, Chancery Lane, in the County of
Middlesex AN IMPROVED METHOD OF AND APPARATUS FOR COATING WITH
GELATINOUS COMPOUNDS THE DRAWING-ROLLERS AND OTHER CYLINDERS EMPLOYED
IN SPINNING MACHINERY [a communication to him from abroad by Johann
Appelt, of Reichenberg, Bohemia, in the Empire of Austria]
"
This invention relates to the coverings of drawing rollers and other cylinders
employed in spinning machinery, composed of a gelatinous compound of gelatine,
glycerine and other ingredients forming a substitute for leather or india rubber as
usually employed in such coverings, and it has for its object improved methods of
covering such drawing rollers or other cylinders by which a perfectly smooth and
cylindrical surface is obtained.
In order to carry out the invention I take a tube of brass, iron, steel, or other
suitable material the interior of which is perfectly cylindrical and smooth and one
end of which is made larger than the remainder in order to allow a plug to be
fitted and fixed by means of a bolt or key passing through two holes in this

page_text: enlarged end. The tube so prepared is placed upright with the plug at its lower
end in a bath of hot water and after being oiled is filled with the gelatinous
compound described.
The drawing roller which it is desired to coat with the gelatinous compound is
formed entirely of iron or of an iron core covered with a cylinder of wood and its
working surface is either coated with varnish or lac or covered in the usual manner
with cloth or other suitable material.
Upon the pivot at each end of the roller I fit a centering disc the diameter of
which is equal to the bore of the tube already described. The roller is then slowly
and with great care placed in the tube described, to the bottom of which as formed
by the plug it slowly sinks, holes being made in the centering discs to allow the
gelatinous liquid to pass through and thus cover the roller. The roller having
remained immersed in the gelatinous compound a short time the tube is removed
and placed in a vessel containing cold water.
_ As soon as the compound congeals and hardens sufficiently, the key and plug
are removed from the bottom of the tube, and the roller and the compound adhering
will fall out in consequence of the gelatinous material having shrunk in the manner
usual to compounds composed principally of gelatine or glycerine.
The compound adheres firmly to the working surfaces, and it can be cut away
where not required, leaving the rollers perfectly true and cylindrical.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Edmund Edwards in the Patent Office on the 31st January 1884.
EDMUND EDWARDS, of the firm of Edwards and Co-, Patent Agents and
Engineers, of 40, Southampton Buildings, Chancery Lane, in the County of
Middlesex "AN IMPROVED METHOD OF AND APPARATUS FOR COATING WITH
GELATINOUS COMPOUNDS THE DRAWING-ROLLERS AND OTHER CYLINDERS EMPLOYED
IN SPINNING MACHINERY (A communication to me from Abroad by Johann
Appelt of Reichenberg, Bohemia, in the Empire of Austria)
This invention relates to the coverings of drawing rollers and other cylinders
employed in spinning machinery, composed of a gelatinous compound of gelatine,
glycerine and other ingredients forming a substitute for leather or india rubber as
usually employed in such coverings, and it has for its object improved methods of
covering such drawing rollers or other cylinders by which a perfectly smooth and
cylindrical surface is obtained.
In order to carry out the invention I take a tube of brass, iron, steel, or other
suitable material the interior of which is perfectly cylindrical and smooth and one
end of which is made larger than the remainder in order to allow a plug to be
fitted and fixed by means of a bolt or key passing through two holes in this
enlarged end. The tube so prepared is placed upright with the plug at its lower
end in a bath of hot water and after being oiled is filled with the gelatinous
compound described. The drawing roller which it is desired to coat with the
gelatinous compound is formed entirely of iron or of an iron core covered with a
cylinder of wood and its working surface is either coated with varnish or lac or
covered in the usual manner with cloth or other suitable material.
Upon the pivot at each ond of the roller I fit a centering disc the diameter of
which is equal to the bore of the tube already described. The roller is then slowly
and with great care placed in the tube described, to the bottom of which as formed
by the plug it slowly sinks, holes being made in the centering discs to allow the
gelatinous liquid to pass through and thus cover the roller. The roller having
remained immersed in the gelatinous compound a short time the tube is removed
and placed in a vessel containing cold water.
As soon as the compound congeals and hardens sufficiently, the key and plug are
removed from the bottom of the tube, and the roller and the compound adhering
will fall out in consequence of the gelatinous material having shrunk in the
manner usual to compounds composed principally of gelatine and glycerine. The
compound adheres firmly to the working surfaces and it can be cut away whero
not required, leaving the rollers perfectly true and cylindrical.
In the accompanying drawing which is in illustration of the invention, Figure 1
is a vertical section of the apparatus, figure 2 a vertical section of the drawing-
rollers, ready for being inserted in the apparatus; figure 3 the apparatus placed in
the water-bath and figure 4 the roller coated with the compound.
The tube a is made of brass, iron, steel, or other material, the bore of which is
exactly cylindrical and smooth and terminates in an enlarged part 6 in which tho
plug c is held by means of the key d driven into the holes e, e, of the part a
When so prepared the tube a is placed in the water bath A (figure 3) and
after being oiled inside is filled with a certain quantity of the previously melted
compound.
The rollers (figure 2) are either
covered with a cylinder of wood f'.
with varnish or lac, or covered in the
web.
made entirely of iron or of an iron core f
Their working surfaces are either coated
usual manner with cloth or other suitable

page_text: -
The centering discs g, g, the diameter of which is equal to that of the boring of
the tube a are fitted over the pivots h, h, of the rollers (figure 2), which are then
slowly and carefully immersed in the melted compound contained in the tube a.
Through apertures i, i, provided in the discs g, g, (figure 2) the liquid compound
passes up and overflows the 'roller, which slowly sinks down to the bottom formed
by the plug c.
After a sufficient time the tube a is removed from the water-bath A and is
placed in a vessel filled with cold water. As soon as the compound congeals the
key d is withdrawn and the roller will fall out of the tube a in consequence of the
shrinkage which takes place in all compounds composed principally of gelatine
and of glycerine.
The superfluous compound, which adheres firmly to the working surfaces conted
previously with varnish, lac or cloth, can be easily cut away from the other parts
of the roller, that is to say between the planes 7, 6, and e, —(figure 4) and to the
planes a, 3 and 7, §.
In order that the melted compound may find free access to the extremities of
the roller, one surface of the centering discs g, g, is made convex as shewn by the
drawing.
Having now described the invention and the manner in which it is to be
performed, I claim —
•
1. The combination of the tube a, plug c and key d with the centering-discs g, 9,
fitting over the pivots h, h, of the drawing-rollers, substantially as and for the
_purpose described and shewn in the drawing.
2. The process of covering the rollers with a fusible compound. by submerging
the rollers in the melted compound contained in a. cylindrical tube, substantially
as described and shewn in the drawing.
-
j
In witness whereof,-I the said. Edmund Edwards, have hereunto set my
and scal this 31st day of January in the year of our Lord 1884.
hanǎ
4
EDMUND EDWARDS (L.S.) ·