Improvements in Driving Belts.
Year: 1897

page_text: Improvements in Driving Belts.
I, RICHARD HAGEN, of 88, Beiden Muhren, Hamburg, in the Empire of Ger-
many, Manufacturer, do hereby declare the nature of this invention to be as
follows:-
This invention relates to improvements in driving belts and as constructed
the said improved driving belt when made as a simple belt consists of a woven
fabric having both sides covered with leather. When constructed as a compound
belt the same consists of several layers of fabric with exterior leather coverings
and an intermediate layer of leather placed between each two layers of woven
fabric; the constituent layers are connected with each other by a suitable binding
substance or cement, or by sewing.
In twilled fabric the warp threads passing in longitudinal direction of the
belt are materially stronger than the weft threads, and serve to take up the whole
tractional tension of the belt, whereas the outer leather coverings merely serve
to produce smooth surfaces; any intermediate layers of leather that may be
provided are solely intended to connect two of the rough layers or sides of woven
fabric. This the effective work of transmitting the traction is assigned entirely
to the woven fabric; the leather strips being entirely exempt from this function
and therefore made appropriately thin. As however the resistance offered to
tractional stresses by twilled fabric is far greater than that offered by leather,
and as moreover the fabric in contradistinction to leather is not subject to any
perceptible extension, therefore by the aid of the above described particular
connection of belt of the utmost efficiency is produced, which is essentially distin-
guished from belts, in which the leather serves to transmit the tractional strain.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.
I, RICHARD HAGEN, of 38, Beiden Muhren, Hamburg, in the Empire of Ger-
many, 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:-
The present invention relates to improvements in driving belts which are
composed of a woven or like fabric and leather.

page_text: The invention has for its object the production of a simple and cheap driving
belt possessing advantages in point of efficiency and durability which will appear
from the following description which is directed to the details of construction,
and which is to be read in connection with the accompanying drawing in which:
Figure 1 is a plan view of my improved driving belt; the upper leather cover
being partly broken away;
Figure 2 is a sectional view on the line 2-2 of Figure 1.
Figure 3 is a similar view to Figure 1, showing a modification; and
Figure 4 is a cross section on the line 4-4 of Figure 3.
The improved driving belt when constructed and made as a simple or ordinary
belt, consists of a woven fabric a having both sides covered with leather sheets b
(Figures 1 and 2). When constructed as a compound belt (Figures 3 and 4) the
same consists of several layers a of fabric with exterior leather coverings band
an intermediate layer of leather placed between each two layers of woven
fabric; the constituent layers are connected with each other by a suitable
binding substance or cement, or by sewing.
As fabric layers I prefer to use such twilled fabrics in which the warp threads
passing in the longitudinal direction of the belt are materially stronger than
the weft threads, in order that the said warp threads may take up the whole
tractional tension of the belt, whereas the outer leather coverings merely serve
to produce smooth surfaces; any intermediate layers of leather that may be
provided are solely intended to connect two of the rough layers or sides of woven
fabric. Thus the effective work of transmitting the power is effected entirely
by the woven fabric; the leather strips being entirely exempt from this function
and therefore made appropriately thin. As however the resistance offered to
tractional stresses by twilled fabric is far greater than that offered by leather,
and as moreover the fabric in contradistinction to leather is not subject to any
perceptible tension, therefore by the aid of the above described particular connec-
tion of fabric and leather strips or layers a driving belt of the utmost efficiency
is produced, which is essentially distinguished from belts, in which the leather
serves to transmit the tractional strain.
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:-
The herein described improved driving belt of fabric and leather layers, having
the characteristic feature that the warp threads of the fabric or fabrics, passing
in the longitudinal direction of the belt, are materially stronger than the weft
threads in order to take up the whole tractional tension, and that each of the
fabric layers is provided but with thin leather coverings serving to produce
smooth outer surfaces or to act as a connecting means between two fabric layers
respectively, substantially as and for the purpose set forth.
Dated this 23rd day of April 1898.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.