IMPROVEMENTS' IN DRIVING BELTS
Year: 1884

page_text: I JOHN MCDOUGALL of Clifton House Greenwich Park in the County of Kent,
Miller, do hereby declare the nature of my said Invention for "IMPROVEMENTS'
IN DRIVING BELTS" to be as follows:-
My Invention has for its object to construct driving belts or bands in a much
cheaper manner than heretofore and also to render the said. belts better capable of
being worked in varying temperatures or when exposed to moisture.
In carrying out my Invention I employ pieces or blocks of suitable wood which,
has the least tendency to split such for example beech, ash, hornbeam and the like.
I form these blocks of say about 14 inches long by inch wide and of an inch
thick (but I do not confine myself to these dimensions), the ends of the said pieces
or blocks being rounded so as to admit of them, when linked together, passing
round a curved or cylindrical surface. In constructing a belt of these pieces or.
blocks I arrange them in rows side by side, preferably employing an odd number
of rows to form a belt; the links of each row being made to break joint with the
links of the adjacent row in such a manner that bolts, rods, or pins may be passed
through both ends of the pieces or blocks so as to link them together, and thus
form a continuous belt. In order to increase the strength of the belt strips or
sheets of iron or other suitable metal may be interposed between the said pieces or
blocks and also placed on the outer edges of the belt, care being taken that the
blocks of wood project beyond the said plates of metal so as to insure a surface of
the wood to work against the wheel or pulloy over which it is passed.

page_text: I JOHN MODOUGALL of Clifton House Greenwich Park in the County of Kent
16 IMPROVEMENTS IN
Miller do hereby declare the nature of my invention for
to be performed, to be
DRIVING BELTS," and in what manner the same is
particularly described and ascertained in and by the following statement:-
My Invention has for its object to construct driving belts or bands in a much 5
cheaper manner than heretofore and also to render the said belts better capable of
being worked in varying temperatures or when exposed to moisture than is the
case with those now in use."
"
In carrying out my Invention I employ pieces or blocks of suitable wood
preferably selecting a kind which has the least tendency to split. Beech Ash, 1
Hornbeam and the like are suited to the purposes of my Invention but I do not
limit myself to these particular kinds of wood. I form these pieces or blocks of
say about 1 inches long by inch wide and of an inch thick but I do not
confine myself to any particular dimensions. The ends of the said pieces or blocks
are preferably rounded or reduced so as to admit of their passing when linked
together round a curved or cylindrical surface without the necessity for leaving
much space between the ends of adjacent pieces or blocks. Holes are made in the
said pieces or blocks for the joint bolts rods or pins as hereinafter described. In
constructing a belt or band of these pieces or blocks I arrange them in lines or rows
side by sido preferably employing an odd number of rows to form a belt or band
the pieces or blocks of each row being made to break joint with the pieces or
blocks of the adjacent row or rows in such a manner that when bolts rods or pins
are passed through the holes in the pieces or blocks they are linked jointed or
binged together and thus form a continuous belt or band.
Figure 1 of the accompanying Drawing represents part of a belt or band made
according to my Invention-a are the pieces or blocks of wood and bare the bolts
rods or pins by which they are secured together. The belts rods or pins may be
formed with a head at one end and be rivetted or provided with a nut at the other
end or be fastened in any other convenient manner.
In order to increase the strength of the belt or band strips or pieces of iron or
other suitable metal or material stronger than wood'inay be interposed between the
b
said pieces or blocks a as shewn at c the bolts rods or pins 6 passing through holes
in these also. I may also place on the outer edges of the belt similar strips or
pieces of metal or strong material (as shewn at c²) care being taken that the blocks
of wood project on the bearing surface beyond the strips or pieces of metal or
strong material as shewn in Figure 2. (which represents separately one piece or
block of wood and a strip or piece of metal or strong material) so as to ensure that'
a surface of wood shall work against the wheel pulley or surface over which the
belt or band passes.
The Invention is applicable for driving belts generally for example it can be
used with advantage for elevators or the like.

page_text: .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 A belt or band made of blocks or pieces of wood linked jointed or hinged
together substantially as herein before described.
2nd A belt or band made of blocks or pieces of wood in combination with strips
or pieces of metal or material stronger than wood the whole being linked jointed or
hinged together substantially as herein before described.
Dated this 10th day of August 1885.