Improvements in Apparatus for Melting Glue.
Year: 1899

page_text: Date of Application, 22nd Aug., 1899-Accepted, 23rd Sept., 1899
COMPLETE SPECIFICATION.
Improvements in Apparatus for Melting Glue.
I, JAMES ROWE, of 76, West Jackson Boulevard, in the City of Chicago, County
of Cook and State of Illinois, United States of America, Manufacturer, 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:-
―
My invention relates to a novel device for melting glue, the object being to
provide a device of this character in which the glue can be readily melted
without the addition of an undesirable quantity of water, so that it can be
readily used for the manufacture of printers' rollers, and consists in the features
of construction and combinations of parts, hereinafter fully described and claimed.
In the accompanying drawings illustrating a device constructed in accordance
with my invention:-
Fig. 1 is a transverse sectional view of same on the line 1-1 of Fig. 2.
Fig. 2 is a longitudinal section on the line 2-2 of Fig. 1.
Fig. 3 is a detail sectional view on the line 3-3 of Fig. 1.
In melting glue preparatory to using it in the manufacture of printers' rollers,
it is essential that the minimum quantity of water be added thereto as, if the
percentage of moisture is only slightly too great it cannot be successfully used for
this purpose.
To this end it is customary to melt such glue by placing it in a closed receptacle
and admitting steam to the latter, whereby the glue is melted and only a very
small percentage of moisture added. In order to successfully melt said glue
to a uniform condition, it is necessary that it be divided into small pieces so that
the steam can readily act. thereon and melt it more rapidly than would be possible
with a larger mass. This has heretofore been most successfully accomplished by
placing such glue in wire baskets through the interstices in which the molten
glue could find exit. This process is, however, objectionable, inasmuch as, after
a given time the entire quantity of glue contained in a basket packs together
and forms a mass which cannot be readily acted upon by the steam.
To overcome this and other objections, I have designed my device to agitate
the glue and keep it in constant motion in the presence of steam, whereby each
piece will be acted upon uniformly and packing will be entirely prevented, thus
saving time and likewise avoiding the addition of a superfluous amount of moisture
to the glue.
My device consists of a preferably cylindrical casing A having a hinged cover B.
A shaft C passes centrally through said casing A and is journalled in bearings D
in the end walls of same. Said shaft C carries a cylinder E rigidly mounted
thereon and consisting of the annularly flanged end plates F in which the ends of
a wire cloth cylinder G are secured. Said cylinder G is provided with a gate H
through which the glue is introduced and which is then closed and locked by
means of the latch I. At one of its projecting ends said shaft C carries a pulley J
by means of which said shaft and cylinder are revolved.
As said bearings D are located below the lower edge of the cover B and must
be preferably made removable together with the cylinder G, I have provided
vertical slots in the end plates of the casing A extending from the upper edge

page_text: thereof to said bearings, said slots being adapted to be closed by means of plates K
having side grooves adapted to receive the edges of said end plates. Said plates K
are provided at their lower ends with semicircular recesses to receive the shaft C.
On the interior of the said casing A in the lower portion thereof I form steam
boxes L by means of securing plates M therein, said plates being of irregular
shape in cross-section and secured at their upper and lower edges to the inner
face of said casing A, their general formation being such that a space is left
between the same and said casing to form said steam boxes L. Steam is admitted
to said boxes through the pipes N and flows thence into said casing A through
the longitudinal slots O in said plates M, flanges P being provided adjacent said
slots to cause the steam passing through the same to impinge against the
cylinder G. A pipe Q leading from the cover B affords an outlet for the steam
after passing through the cylinder G.
The molten glue drips from said cylinder G upon the lower inclined portions
of the plates M and flows out through the pipe R leading from the bottom of
said casing A.
To prevent water from condensed steam from mixing with the molten glue,
I have provided troughs S mounted on said plates M above said slots C and extend-
ing the entire length of the casing A. The said troughs S are adapted to collect
the condensations forming in the upper portions of said casing and lead the same
to pipes T entering said casing A at one end, said pipes T being preferably
brought together at their ends and connected with a waste pipe U.
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:-
1. A device for melting glue comprising a casing having a removable cover,
a perforated cylinder revolubly and removably mounted in said casing and
adapted to receive lumps of glue, means for revolving said cylinder, steam boxes
in said casing, slots connecting said steam boxes with the interior of said
casing, said slots being so directed as to cause the steam to enter said casing in
sheets practically radial with said revoluble cylinder, steam inlets in said boxes,
a steam outlet from said casing, and an outlet for molten gluc.
2. A device for melting glue comprising a casing having a removable cover,
a perforated cylinder revolubly and removably mounted in said casing and
adapted to receive lumps of glue, means for revolving said cylinder, steam boxes
in said casing, slots connecting said steam boxes with the interior of said
casing, troughs interiorly mounted in said casing above said slots and adapted
to collect water from condensed steam, a waste pipe connected with said troughs,
steam inlets in said steam boxes, a steam outlet from said casing, and an outlet
for molten glue.
3. A device for melting glue comprising a casing having a removable cover,
a perforated cylinder revolubly and removably mounted in said casing, and
adapted to receive lumps of glue, means for revolving said cylinder, steam
boxes in said casing, slots connecting said steam boxes with the interior of said
casing, said slots being so formed as to cause steam issuing therefrom to impinge
against said cylinder, troughs interiorly mounted in said casing above said slots
and adapted to collect water from condensed steam, a waste pipe connected with
said troughs steam inlets in said steam boxes, a steam outlet from said casing
and an outlet for molten glue.
Haseltine, Lake & Co.,
JAMES ROWE.
45, Southampton Buildings, London, W.C., Agents for the Applicant.