Year: 1887

page_text: Date of Application, 4th Feb., 1887.
Specification Accepted, 11th Mar., 1887.
We ERNST BOCKMURL and WILHELM KARTHAUS both of Barmen-Rittershausen
Rhenish Prussia in the Empire of Germany, 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 and accompanying
drawing:
Our said Invention relates to the manufacture of driving belts from paper or paste-
board the belt being composed of a series of links composed of paper or of layers of
paper or pasteboard, and hinged together by means of studs so as to form a continuous
band. The said links or certain of them may be strengthened by the introduction of
links of metal which resist wear and diminish the tendency of such belts to stretch.
A
In the accompanying drawing Fig. 1 is a plan view partly in section of a portion of
a driving band inade in accordance with our invention. Fig. 2 is an edge view of the
same. The band is composed as shown of connected rows of links made of com-
pressed paper or pasteboard either in one thickness as shown at y Figs. 1 and 3 or
of several thicknesses of paper or pasteboard, as indicated at Fig. 1 the said
several thicknesess being cemented and pressed together so as to form a solid link.
suitable cement for fastening the several thicknesses of paper or pasteboard together,
may be made by boiling buck-wheat flour in water and adding a proportion of resin,
the mixture forming a tenacious paste, the resinous nature of which assists adhesion
betwixt the belt and the pulley. The links g or glare arranged in rows, there being
preferably an even number of rows in the breadth of the band, for example eight
rows are shown in Fig. 1. We prefer an even number of rows because the band can
then be shortened to the extent of one link, while with an uneven number two links at
least must be taken out at a time. To assist the links in resisting wear and to decrease
friction we cover the sides of each link with an outside layer of paper or pasteboard
compressed and glazed. The sides of the links may also be dusted with plumbago
before being put together so as to ease friction. The links y are strung on transverse
studs b which are formed with a head at one end and are rivetted over washers at
An endless driving band is thus formed
the other end, as clearly shown at Fig. 1.
In order to increase the
which possesses great strength and freedom of movement.

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strength of the belt we may introduce auxilliary metallic links which we prefer to
embed in recesses p in the links g or g; and in Fig. 1 the two central rows of links
are shown thus strengthened. The said metal links may be made flat and of the
form shown at Figs. 4 and 5 or they may be made from metallic rings bent together
as shown at Fig. 6. We prefer that each of our improved bands should contain
one, two or more rows of these strengthened links, while in special cases the whole of
the links might be thus strengthened.
Having now particularly described and ascertained the nature of the said invention
and in what manner the same is to be performed we declare that what we claim is :-
(1) The improved construction of driving bands composed of separate members or
links made of paper or pasteboard, the said members or links being either homogeneous
or composed of several layers of paper or pasteboard cemented together, in combination
with the hinge studs for connecting the various rows of members or links together, so
as to form a driving band, substantially as herein before described and shown.
(2) In driving bands of the indicated nature strengthening the members or links
by the introduction of auxilliary metallic links inserted into the body of the paper or
pasteboard links and engaging with the hinge pins or studs, substantially as described
and shown.
(3) A driving band composed partly or wholly of paper or pasteboard members or
links strengthened by or containing auxilliary metallic links substantially as described
and shown.
DUTTON & FULTON,
1. St. James Square, Manchester,
Agents.