IMPROVEMENTS IN THE MANUFACTURE OF DRIVING BELTS, BANDS, OR STRAPS
Year: 1868

page_text: LETTERS PATENT to Louis Sterne, of Great Queen Street, in the
City of Westminster, Engineer, for the Invention of "IMPROVEMENTS
IN THE MANUFACTURE OF DRIVING BELTS, BANDS, OR STRAPS."
Sealed the 1st December 1868, and dated the 2nd June 1868.
PROVISIONAL SPECIFICATION left by the said Louis Sterne at the
Office of the Commissioners of Patents, with his Petition, on the
2nd June 1868.
I, LOUIS STERNE, of Great Queen Street, in the City of Westminster,
Engineer, do hereby declare the nature of the said Invention for "Iм-
PROVEMENTS IN THE MANUFACTURE OF DRIVING BELTS, BANDS, OR STRAPS," to
be as follows:-
My Invention consists in manufacturing driving belts, bands, or
straps from india-rubber and metal united or joined together during
the process of vulcanization or curing. I proceed as follows:-
Supposing I wish to make a belt with metal on one side only I wind a
length of rubber prepared for curing or vulcanizing and a thin strip of
metal together spirally upon a drum or cylinder; when a sufficient
length has been wound I enclose the whole by two half cylinders so as
to grip or embrace the whole tightly; I then submit them to the process
of vulcanization or curing, whereby the metal and rubber are firmly

page_text: united. If the metal and rubber have been previously chemically
prepared they are united chemically. Sometimes I make the belts with
metal on both sides, and sometimes with a strip interposed between
two strips of rubber, the metal and rubber being united in the manner
before described. I do not limit myself to winding the strips upon a
drum in order to submit them to the curing process, as they may be
placed and pressed in a mould or be otherwise held under pressure during
the curing.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Louis Sterne in the Great Seal Patent Office on
the 2nd December 1868.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, LOUIS
STERNE, of Great Queen Street, in the City of Westminster, Engineer,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Second day of June, in the year of
our Lord One thousand eight hundred and sixty-eight, in the thirty-
first year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said Louis Sterne, Her special licence that I,
the said Louis Sterne, my executors, administrators, and assigns, or
such others as I, the said Louis Sterne, my executors, administrators,
and assigns, should at any time. agree with, and no others, from time
to time and at all times thereafter during the term therein expressed,
should and lawfully might make, use, exercise, and vend, within the
United Kingdom of Great Britain and Ireland, the Channel Islands,
and Isle of Man, an Invention for "IMPROVEMENTS IN THE MANUFACTURE
OF DRIVING BELTS, BANDS, OR STRAPS," upon the condition (amongst others)
that I, the said Louis Sterne, my executors or administrators, by an
instrument in writing under my, or their, or one of their hands
and seals, should particularly describe and ascertain the nature of
the said Invention, and in what manner the same was to be performed,
and cause the same to be filed in the Great Seal Patent Office within
six calendar months next and immediately after the date of the said
Letters Patent.
NOW KNOW YE, that I, the said Louis Sterne, do hereby declare
the nature of my said Invention, and in what manner the same is to

page_text: be performed, to be particularly described and ascertained in and by
the following statement thereof, reference being had to the Drawings
hereunto annexed, that is to say :-
My Invention consists in manufacturing driving belts, bands, or
straps from india-rubber and metal united or joined together during the
process of vulcanization or curing. I proceed as follows:-Supposing I.
wish to make a belt with metal on one side only I wind a length of
rubber prepared for curing or vulcanizing, and a thin strip of metal
together spirally upon a drum or cylinder, as represented in Figure 1, in
which a is the drum, and b the rubber wound spirally thereon, the
metal being below the rubber is not seen in the Figure. When a
sufficient length has been wound I enclose the whole by two half
cylinders so as to grip or embrace the whole tightly; Figure 2 shows
the two half cylinders c, c, with the drum a and rubber and metal
enclosed therein, the two half cylinders c, c, are clamped together by
nuts d, d; I then submit the whole to the process of vulcanization
or curing, whereby the metal and rubber are firmly united. If the
metal and rubber have been previously chemically prepared they are
united chemically; Figure 3 shows in cross section one of my belts
made as before described, being the rubber, and e the metal. I prefer
that the edges of the metal should be imbedded in the rubber as shown.
Sometimes I make the belts with metal on both sides, as seen in
Figure 4, and sometimes with a strip of metal interposed between two
strips of rubber as shown in Figure 5, the metal and rubber being
united in the manner before described. I do not limit myself to winding
the strips upon a drum in order to submit them to the curing process,
as they may be placed and pressed in a mould or placed on and pressed
by an expanding drum, or be otherwise held under pressure during the
curing.
In witness whereof, I, the said Louis Sterne, have hercunto set
my hand and seal, this Second day of December, in the year
of our Lord One thousand eight hundred and sixty-eight.