IMPROVEMENTS IN BELTS OR BANDS FOR TRANSMITTING MOTION
Year: 1884

page_text: I, ROBERT DEX HARRISON of Wellington Street in Batley in the County of
York, Leather belting Manufacturer do hereby declare the nature of said Invention
for "IMPROVEMENTS IN BELTS OR BANDS FOR TRANSMITTING MOTION
"to be as
follows:-.
My Invention has for its object to avoid the loss of power which arises in the
use of belts or bands as ordinarily constructed owing to air getting between the
inner surfaces of the belts or bands and the surfaces of the peripheries of the pulleys
thus preventing the full effective contact of the said surfaces and also to provide
for the efficient lubrication of the inner surfaces of thick belts which belts when
made as is usual of layers cemented together offer an obstruction to the passage of
lubricant through their thickness. According to my Invention I make transverse
passages holes or perforations through the belt or band from the outer to the inner
side. These passages holes or perforations may be in longitudinal rows or be
arranged in any other suitable form and through them the air can pass so that it
is not confined between the under-surface of the belt or band and the surface of
the peripheries of the pulleys as hereinbefore mentioned. In the case of the
aforesaid thick belts if a lubricant be applied to the outer part of the belts or
bands constructed according to my Invention, the passages holes or perforations
will allow the lubricant to get to the underneath layer of the belts or bands and
thus effect the lubrication of the undersurfaces of the belts or bands this manner of
lubrication will prevent the bottom layer of the belts or bands from cracking and
the undersurfaces of the belts or bands from slipping as they would do if lubricated
from the underside. In belts or bands required for slow running say up to 200
revolutions per minute it is not essential that the passages holes or perforations
should be perforated completely through as air does not gather between the pulley
and belt to an appreciable degree in slow running and therefore the holes will be
sufficient if they are perforated through past the layers of cement in order to allow
the lubricant to get to the bottom layer of the belt and the heat and friction will
then draw sufficient of the lubricant through it to effect its lubrication.

page_text: COLLIE
SPECIFICATION.
I, ROBERT DEX HARRISON, of Wellington Street in Batley in the County of
York Leather Belting Manufacturer, do hereby declare the nature of my invention
for "IMPROVEMENTS IN BELTS OR BANDS FOR TRANSMITTING MOTION" and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement :-
My Invention has for its object to avoid the loss of power which arises in the
use of belts or bands as ordinarily constructed owing to air getting between the
inner surfaces of the belts or bands and the surfaces of the peripheries of the pulleys,
thus preventing the full effective contact of the said surfaces and also to provide
for the efficient lubrication of the inner surfaces of thick belts, which belts when
made as is usual of layers cemented together offer an obstruction to the passage of
-lubricant-through-their-thickness.
I will describe my Invention with reference to the accompanying drawing
whereon Figure 1 represents the face side and Figure 2 is a longitudinal section of
a part of a belt or band constructed according to my Invention.
In constructing a belt or band according to my Invention I make by punching
or in any convenient way passages, holes, or perforations a through the belt or band
from the outer to the inner side. These passages holes or perforations a may be
in longitudinal rows as illustrated, or be arranged in any other suitable manner
and may be of any convenient shape and through them the air can pass so that it is
not confined between the under surface of the belt or band and the surface of the
peripheries of the pulleys as hereinbefore mentioned. The drawing shews the
Invention applied to a thick belt consisting of two layers b and c cemented together
by a layer of cement d but it is evident that the said Invention may be applied to
belts or bands consisting of one or any number of layers which may be used to
make up the band.
In the case of the aforesaid thick belts if a lubricant be applied to the outer
part of the belts or bands constructed according to my Invention the passages
holes or perforations a will allow lubricant applied to the outer side of the belts or
bands to get to the underneath layer of the belts or bands and thus effect the
lubrication of the undersurfaces of the belts or bands; this manner of lubrication
will prevent the bottom layer of the belts or bands from cracking and the under-
surfaces of the belts or bands from slipping, as they would do if lubricated from
the underside. In belts or bands required for slow running say up to 200
revolutions per minute it is not essential that the passages holes or perforations a
should be inade completely through, as air does not gather between the pulley and
belt to an appreciable degree in slow running, and therefore the holes will be
sufficient if they are perforated through past the layers of cement in order to allow
the lubricant to get to the bottom layer of the bolt and the heat and friction will
then draw through sufficient of the lubricant to effect proper lubrication.
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
1st Providing belts or bands for transmitting motion, with passages, holes, or
perforations extending through the layer or layers composing the belt or band and
from side to side of the belt or band as and for the purposes hereinbefore described
and illustrated by the accompanying drawings.

page_text: 2nd Providing belts or bands for transmitting motion, and consisting of two or
more layers cemented together, with passages, holes or perforations passing through
the outer layer or layers and through all the layers of cement substantially as and
for the purpose herein before described.