Improvements in Link Belting.
Year: 1885

page_text: Improvements in Link Belting.
I, DAVID TULLIS of St. Ann's Leather Works, Glasgow, in the county of
Lanark, North Britain partner of the firm of John Tullis & Son, Leather and
Canvas Belt Manufacturers do hereby declare the nature of the said invention
for IMPROVEMENTS IN LINK BELTING, to be as follows:-
This Invention, which relates to Improvements in link belting, has for its object
to enable that structure of link belting which has been hitherto applied to flat belts
such as run upon flat or approximately flat pulleys, to be adapted for running in
grooved pulleys after the manner of what is commonly known as rope driving."
The improved link belting made according to this invention may be either of
circular section, or it may be of a single V or a double V-shaped section..
If
When it is made of circular section, that is to say, to correspond with the round
rope, the links are held together by rivets placed at right angles with the centre
line or axis of the belting and the several links composing such circular belt are
shaved off at their exterior to give the requisite circular form and in this case the
several links are practically parallel or of equal thickness throughout.
In cases when the improved belt is made of a V section some or all of the several
links composing it are tapered off towards that side, that is to say, the narrower
side which runs in the groove or grooves of the pulleys and such tapered portions
may extend to the whole depth of the belt, or they may extend to a part of the
depth thereof only. When such tapered links extend to a portion of the depth of
the belt only, then those links which alternate with the tapered links may be made
parallel or of practically the same thickness throughout.
In cases where the belt is made of a double. V section so that it shall run in the
grooves of pulleys both at its inner, as well as at its outer edges, the construction
described in the last preceding paragraph is duplicated, with this difference that
whilst in the case of the construction of belts described in the last preceding
paragraph such belts are riveted at both edges, the belts when made of a double
V section are riveted at both of their narrower edges, whilst the broad line of
rivets is at the centre of such belts and forms the centre line or axis of flexure.
C A
11007

page_text: Improvements in Link Belting.
I, DAVID TULLIS of St. Ann's Leather Works, Glasgow in the County of
Lanark, North Britain, partner of the firm of John Tullis and Son, Leather and
Canvas Belt Manufacturers do hereby declare the nature of my, said invention
for IMPROVEMENTS IN LINK BELTING and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement :-
:
My Invention, which relates to improvements in link belting, has for its object
to enable that structure of link belting, which has been hitherto applied to flat
belts such as run upon flat or approximately flat pulleys, to be adapted for
running in grooved pulleys after the manner of what is commonly known as rope
driving."
$8.
The improved link belting made according to my invention, may be either of
circular section or it may be of a single V or a double V shaped section.
When it is made of circular section, that is to say, to correspond with the round
rope, the links are held together by rivets placed at right angles to the centre line
or axis of the belting and the several links composing such circular belt are shaved
off at their exterior to give the requisite circular form and in this case the several
links are practically parallel or of equal thickness throughout.
In cases when the improved belt is made of a V section some or all of the several
links composing it are tapered off towards that side, that is to say, the narrower
side which runs in the groove or grooves of the pulleys and such tapered portions
may extend to the whole depth of the belt or they may extend to a part of the depth
thereof only. When such tapered links extend to a portion of the depth of the
belt only, then those links which alternate with the tapered links may be made
parallel or of practically the same thickness throughout.
In cases where the belt is made of a double V section so that it shall run in the
grooves of pulleys both at its inner, as well as its outer edges, the construction
described in the last preceding paragraph is duplicated, with this difference that
whilst in the case of the construction of belts described in the last preceding
paragraph such belts are riveted at both edges, the belts when made of a double
V section are riveted at both of their narrower edges, whilst the broad line of rivets
is at the centre of such belts and forms the centre line or axis of flexure.
In order that my said Invention may be properly understood and readily carried
into effect, I will now proceed to describe the drawings hereunto annexed:-
Figure 1, is a plan of a portion of link belting of approximately circular section
as constructed according to my present Invention.
Figure 2, is a side elevation of the same.
Figure 3, is an end elevation corresponding to one end of Figure 2.
Figure 4, is a transverse section of the same.
"
Figure 5, is a plan of a portion of one form of link belting of V section as
'constructed according to my present Invention.
Figure 6,5 awview of the underside of the same.
Figure 7, is a side elevation of the same.
Figure 8, is an end elevation corresponding to one end of Figure 7.
Figure 9, is a transverse section of the same.

page_text: Figures 10 to 14 and 15 to 19 (inclusive) are views respectively corresponding to
Figures 5 to 9 of further forms of link belting of V section as constructed according
to my present Invention.
Figures 20, 21, 22 and 23 are views respectively corresponding to Figures 5, 7,8
and 9 of a portion of link belting of double ✓ shaped section as constructed
according to my present Invention.
Figures 24 to 28 (inclusive) are views of a further form of link belting of
V section as constructed according to my present Invention and all hereinafter
more particularly described.
When my improved link belting is made of circular or approximately circular
section, that is to say as indicated more particularly at Figures 3 and 4 of the
annexed drawings, the links a, thereof are held together by the rivets b, which are
arranged at right angles to the centre line or axis of the belting. The said links a,
are shaved off as shewn at Figures 2, 3 and 4, at their edges to give the requisite
circular form to the belting, and the links a, under this construction are of an
uniform thickness throughout.
In the belting which is represented in part at Figures 5 to 9 (inclusive) some of
the links thereof are tapered off so as to give the requisite V-shaped section. With
reference more particularly to Figures 6, 8 and 9, it is seen that the centre link or
centre row of links c, is of an uniform thickness throughout its width, while all the
other links or rows of links are tapered off for a portion of their width so as to give
the whole, when riveted together, the V-shaped form indicated at Figures 8 and 9.
In order to make the taper of the belting more acute, some of the links or rows of
links do not extend from edge to edge thereof. At d, e, f, and g, respectively are
shewn four such links or rows of links whose width is less than that of the links c,
and h, alternating therewith. The several links are connected together by the
rivets i, which are arranged upon their line of flexure and the said links are
further secured against lateral derangement by the rivets j.
In the belting represented in part at Figures 10 to 14 (inclusive) the centre link
or row of links c, as in the herein-last described example, is of an uniform thickness
throughout its width, while the two next succeeding links or rows of links l, and m,
at each side of the said centre link or links c, are shaved off so as to give them a
taper form. The links or rows of links o, that is to say those next at the outside
of the rows m, are of an uniform thickness throughout their width, while the rows
of links P, and to the outside of these said links o, are shaved off to give to the
belting the necessary taper form.
In the belting represented in part at Figures 15 to 19 (inclusive) the centre link
or row of links r, is tapered as also are each row of links 8, alternating therewith,
while all the other links or rows of links k, are of an uniform or approximately
uniform thickness throughout their width.-The tapered links r, and 8, do not
extend from edge to edge of the belting that is "to say, they are constructed in a
manner somewhat the same as that hereinbefore described with reference to the
links d, e, f, and g, shewn at Figures 8 and 9 of the annexed drawings.
The links of the belting which is represented' at Figures 10 to 14 and Figures 15
to 19 (inclusive) are connected together. by rivets in a manner similar to that
hereinbefore described with reference to Figures 5 to 9 inclusive.
The belting which is represented at Figures 20 to 23 (inclusive) is that which is
constructed of a double V shaped section and is arranged to run in the grooves of .
pulleys both at its inner as well as its outer edges. The belting represented at the
said Figures 20 to 23, is constructed in a manner, the duplicate of that of the
belting represented at Figures 5 to 9, but having one central line of rivets t, and
at each of its edges a row of smaller riveta u. This double V-shaped section of
belting in place of being formed in the manner represented at Figures 20 to 23,
may be constructed as a duplicate of either of the forms of belting represented at
Figures 10 to 14 and Figures 15 to 19 inclusive.
In the belting represented in part at Figures 24 to 28 (inclusive) the centre link
or row of links v, as in the belting represented at Figures 5 to 14, is of an uniform

page_text: thickness, the links w, and x, at each side. thereof being shaved off so as to give to
the belting the necessary taper form. To the outside of the links w, the strips 3,
are secured by the rivets z, or the equivalents thereof, and .the strips a¹, which pass
under the narrower edge. of the belting are secured to the said belting by the
rivets b¹. It is to be observed that in this last described form of belting there is
but one row of rivets, as the second row of smaller rivets as employed in the
foregoing examples is rendered unnecessary by the use of the strips a¹ these said
strips securing the links thereof. against any lateral derangement.
2 :
I desire it to be understood that I may substitute the strips y, and a¹, for the
row of smaller rivets of any of the forms of belting herein before described and
shewn upon the annexed drawings, or a set of such strips y, and a³, may be applied
at each of the edges. of belting of a double V section such as that represented at
Figures 20 to 23 of the annexed drawings.
It is to be understood that the herein before described forms of link belting may
be constructed wholly of hide, leather, wood, paper or papier mache or the said,
belting may be composed both of wood and hide or leather or of paper or papier
mache and bide or leather. As an example of this it may be mentioned with
reference more particularly to Figures 24 to 28 (inclusive) that under this
construction the links v, w, and x, and the strips y, would be formed of wood,
while the strips or covering links a¹ would be of hide or leather.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the saine is to be performed, I declare that what
I claim is
First. Link belting of circular or approximately circular section substantially
as and for the purposes hereinbefore set forth with reference to Figures 1 to 4
(inclusive) of the annexed drawings.
Second. Link belting of V-shaped or approximately V-shaped section in which
some or all of the links are tapered off for a portion or the whole of their width
all substantially as and for the purposes herein before set forth with reference to
Figures 5 to 19 (inclusive) of the annexed drawings.
Third. Link belting of a double V-shaped or approximately V-shaped section, in
which some or all of the links are shaved or tapered off for a portion or the whole
of their width all substantially as and for the purposes herein before set forth with
reference to Figures 20 to 23 of the annexed drawings.
Fourth. The improvements in link belting consisting of the strips y, and the
covering links a¹, as applied in the manner substantially as hereinbefore set forth
with reference more particularly to Figures 24 to 28 (inclusive) of the annexed
drawings.
I
Fifth. The improvements in link belting consisting of the strips y, and the
covering links a¹, as applied to link belting of double V shaped section substan-
tially as hereinbefore described with reference to the annexed drawings.
Dated this twenty first day of January 1886.
J. H. JOHNSON, DAY & JOHNSON,
Applicant's Agents.