Improvements in or relating to Apparatus for Spreading Paste or the like on Strips or Bands.
Year: 1892

page_text: Date of Application, 9th Aug., 1892-Accepted, 19th Nov., 1892
COMPLETE SPECIFICATION.
Improvements in or relating to Apparatus for Spreading Paste or
the like on Strips or Bands.
A. communication from EMIL SALTZKORN, Consul, and LUDWIG NICOLAI, Manu-
facturer, both of Lobtauerstrasse 20, Dresden, Saxony, in the Empire of
Germany.
ALFRED JULIUS BOULT of 323 High Holborn in the County of Middlesex,
Member of the Institution of Mechanical 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 :-
The object of this invention is to devise improved means of spreading paste or
any other adhesive substance upon strips or bands. Unlike the devices hitherto
employed for this purpose the present arrangement consists in utilizing the pulling
strain produced by the feed of the strip or band, for setting in motion a disc
arranged in frictional contact with the paste-distributing roller and dipped into the
paste contained in a suitable reservoir so that the strip as it is fed along is provided
on one side with the required quantity of paste or the like.
In the accompanying drawings
Fig. 1 is a front view of the apparatus.
Fig. 2 a plan thereof, and
Figs. 3 and 4 detail views.
On either side of the table 1 is arranged a disc 2 provided with a number of
radial ribs 3 dipping in the paste contained in a reservoir 4 arranged underneath.
In frictional contact with this disc is the distributing roller 5 made preferably of a
somewhat elastic material and preferably provided with longitudinal corrugations
or ribs to enable it the better to "grip" the disc. On either side of this roller are
arranged guide-rollers 6 and 7. Both these rollers and the roller 5 are adjustable
to enable the pulling power of the passing strip or band to be properly regulated.
The strip or band to be supplied with paste moves from the roller or bobbin
turning on the pivot 8 first over the guide-roller 6, then over the distributing-
roller 5 and lastly over the guide-rollers 7 and 9. As the strip is drawn along, it
carries round the roller 5, thereby setting in motion the disc 2 in frictional contact
therewith. The paste raised by the ribs on the disc is then evenly distributed
upon the roller 5 and brought down in a uniform layer upon the paper 2 as it
moves along.
In Fig. 2 the arrangement shown in plan is slightly modified as it is provided
with two distributing or feed rollers 10 and 11 and one guide roller 12 only.
The paper strip or band as it is unwound from the roller 13 first passes over the
roller 10 then over the roller 12 and then over the second distributing roller 11.
In this case also the pulling strain caused by the strip as it moves along is sufficient
to set in motion the distributing rollers 10 and 11 and through them the disc 2 which
is in frictional contact with them, the disc as in the first case, raising the paste and
passing it on to the rollers 10 and 11 so that one side of the travelling band or strip
is covered with the paste.
It will be seen that the principle is the same in both arrangements.
Having now particularly described and ascertained the nature of the said inven-
tion, as communicated to me by my foreign correspondents, and in what manner
the same is to be performed, I declare that what I claim is,-
An arrangement for spreading paste or the like upon strips of paper or other
material characterized by a disc adapted to turn partly within a paste reservoir while
017

page_text: at the same time it is in frictional contact with one or more rollers which are set in
motion by the travelling strip or band itself and in their turn cause the disc to
rotate so that it carries up the paste and through the medium of the rollers spreads
it upon the band or strip substantially as described and illustrated in the accom-
panying drawings.
Dated this Ninth day of August 1892.
ALFRED J. BOULT,
Chartered Patent Agent.