IMPROVEMENTS IN THE MANUFACTURE OF COMPOUND RIVETTED BANDS OF IRON, STEEL, OR OTHER METAL, TO BE USED AS A SUBSTITUTE FOR WIRE ROPES, AND IN THE FORMATION OF PULLIES TO BE USED THEREWITH
Year: 1870

page_text: LËTTERS PATENT to Charles Hodgson, of Richmond, in the County
of Surrey, Civil Engineer, for the Invention of IMPROVEMENTS IN
THE MANUFACTURE OF COMPOUND RIVETTED BANDS OF IRON, STEEL, OR OTHER
METAL, TO BE USED AS A SUBSTITUTE FOR WIRE ROPES, AND IN THE FORMATION
OF PULLIES TO BE USED THEREWITH:
"
Sealed the 28th June 1870, and dated the 1st January 1870.
PROVISIONAL SPECIFICATION left by the said Charles Hodgson at the
Office of the Commissioners of Patents; with his Petition, on the
1st January 1870.
I, CHARLES HODGSON, of Richmond, in the County of Surrey, Civil
Engineer, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN THE MANUFACTURE OF COMPOUND RIVETTED BAND3.OF. IRON;;
STEEL, OR OTHER METAL TO BE USED as a Substitute FOR WIRE ROPES; AND IN THE
FORMATION OF PULLIES TO BE USED THEREWITH," to be as follows:-
4
'
1744
The object of my. Invention is, firstly, to manufacture compound metal
bands to be used as a substitute for wire ropes, particularly in the con-

page_text: veyance of goods and merchandise, in the manner described in the
Specification of my Patent of the 20th July 1868, No. 2281, and secondly,
to make the peripheries of the pullies over which the bands pass of a
shape suitable for allowing them to do so without jumping, and at the
same time to obtain sufficient tread or surface for the band to work upon
without injury.
The first part of the Invention consists in placing a number of plates
or strips of metal in a superposed state and rivetting them together
preferably along the centre of their lengths. The rivet heads project
above the surface of the outside plates and hold them firmly together.
The rivet holes may be formed in straight lines near each edge of the
band if desirable, in that case they would be arranged alternately so that
the plates are not weakened thereby. The strips of metal forming one
layer are arranged to break joint with those next them.
The second part consists in shaping or forming the peripheries
of the pullies for the bands above mentioned to pass over without
binderance.
In pullies over which the central rivetted bands are to travel I form a
continuous groove round their central portion for the rivet heads to lie
in, and I leave sufficient breadth of surface on each side of the groove to
form a tread for the band to rest upon, or I construct the pullies with
two grooves near the edges for the rivet heads of the band to lie in when
the band is made with a double line of rivet holes. In some cases I form
raised edges to the pullies to prevent the band running off them.
SPECIFICATION in pursuance of the conditions of the Letters Patent, 2
filed by the said Charles Hodgson in the Great Seal Patent Office
on the 1st July 1870.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CHARLES
HODGSON, of Richmond, in the County of Surrey, Civil Engineer, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her'
Letters Patent, bearing date the First day of January, in the year
of our Lord One thousand eight hundred and seventy, in the thirty-
third year of Her reign, did, for Herself, Her heirs and successors, give
3

page_text: and grant unto me, the said Charles Hodgson, Her special licence that
I, the said Charles Hodgson, my executors, administrators, and assigns,
or such others as I, the said Charles Hodgson, my executors, adminis-
trators, and assigns, should at any time agree with, and no others, from
5 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 MANU-
FACTURE OF COMPOUND RIVETTED BANDS OF IRON, STEEL, OR OTHER METAL TO BE USED
AS A SUBSTITUTE FOR WIRE ROPES, AND IN THE FORMATION OF PULLIES TO BE USED
THEREWITH," upon the condition (amongst others) that I, the said Charles
Hodgson, 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
6 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 Charles Hodgson, do hereby declare:
the nature of my said Invention; and in what manner the same is to be
6 performed, to be particularly described and ascertained in and by the,
following statement thereof, reference being had to the Drawing:
hereunto annexed, that is to say :-
The object of my Invention is, firstly, to manufacture compound
metal bands to be used as a substitute for wire ropes, particularly in the
conveyance of goods and merchandize, in the manner described in
the Specification of my Patent of the 20th July 1868, No. 2281, and,
secondly, to make the peripheries of the pullies over which the bands.
pass of a shape suitable for allowing them to do so without jumping,
and at the same time obtain sufficient tread or surface for the band to
work upon without injury.
The first part of the Invention consists in placing a number of plates
or strips of metal in a superposed state and rivetting them together pre-
ferably along the centre of their lengths. The rivet heads project above.
the surface of the outside plates and hold them firmly together. The
rivet holes may be formed in straight lines near each edge of the band if
desirable, in that case they would be arranged alternately so that the.
plates are not weakened thereby. The strips of metal forming one layer
are arranged to break joint with those next them.

page_text: The second part consists in shaping or forming the peripheries of the
pullies for the bands above mentioned to pass over without hindrance.
In pullies over which the central rivetted bands are to travel I form a
continuous groove round their central portion for the rivet heads to lie in,
and I leave sufficient breadth of surface on each side of the groove to
form a tread for the band to rest upon, or I construct the pullies with
two grooves near the edges for the rivet heads of the band to lie in when
the band is made with a double line of rivet holes. In some cases I
form raised edges to the pullies to prevent the band running off them.
The Invention will be well understood by referring to the accom-
panying Drawings and to the following description :-
Figure 1 is an edge view of a number of metal strips or plates a, a, in
a superposed state, and held by rivets b, b, at equal distances apart so as
to bind the plates firmly together; these rivets are arranged along the
central line of the plates as seen in Figure 2, which is a plan view of that
shewn in Figure 1. The joints or meeting ends of the plates can be
arranged in any broken order.
.
It is not essential that the holes in the plates should be in the
central line, as they can be arranged in a zig-zag manner as shown in
Figure 3. In that case there would be less liability of the strain being
put so much into the centre. The heads of the rivets project from both
sides of the strips, and in order that they may pass freely over the pullies
or rollers I make the faces of the pullies in the manner as shown in
Figures 4 and 5, where Figure 4 represents a pulley suitable for the
central rivetted band, and Figure 5. for the diagonal or zig-zag one. The
grooves are continuous round the peripheries, so that when the band is
at work the jumping of the rivets on the surface is entirely avoided. I
prefer to make the pullies with raised edges to prevent the band leaving
them when it is working at an angle or otherwise. The flat surfaces d, d,
of the pullies are those on which the band travels.
- Figures 6 and 7 are sectional views of the bands shown in Figures 1
and 3 as will be well understood.
And having now described the nature of my said Invention, and in
what manner the same is to be performed, I declare that I claim as my
Invention,-
Firstly. The construction and employment of compound rivetted metal

page_text: bands to be used as a substitute for wire ropes in the manner herein-
before described and represented in the Drawings hereunto annexed.
And, secondly. The construction and employment of pullies in the
manner and for the purpose herein-before described and represented.
In witness whereof, I, the said Charles Hodgson, have hereunto set
my hand and seal, this First day of July, One thousand eight
hundred and seventy.
CHARLES HODGSON. (L.S.)