MENTS IN CHAINS FOR THE TRANSMISSION OF MOTIVE POWER APPLICABLE CHIEFLY TO VELOCIPEDES, HOISTING MACHINES, TRACTION ENGINES AND OTHER MECHANICAL PURPOSES to be as follows:-
Year: 1884

page_text: 1 JOHN ICELY WARMAN, of 16 Stephen Street, Coventry, in the County of
Warwick, Engineer, do hereby declare the nature of my Invention for "IMPROVE
MENTS IN CHAINS FOR THE TRANSMISSION OF MOTIVE POWER APPLICABLE CHIEFLY
TO VELOCIPEDES, HOISTING MACHINES, TRACTION ENGINES AND OTHER MECHANICAL
PURPOSES to be as follows:-
"
This Invention being an improvement on a former Invention of mine for which'
a Patent was granted me on 25th August 1881 Number 3716.
The chain consists in one of its forms of alternately one and two links each of
which is shaped to fit the periphery of the wheel on which it works, and which
links are rectangular in cross section. The long side of the rectangle is at right
angles to the axis of the wheel whereon the chain works. At each end of each of
the links placed singly is a projecting circular boss on each side of the link that is
four bosses on each link. On each end of each of the links placed two side by side
is a projecting boss, that is two on each link on the same side that is the side
remote from the centre line of the chain. These bosses have circular recesses in
which the bosses on the links placed singly can rotate in part when the chain is
put together. To prevent the links placed two side by side from coming apart a
distance piece is formed on one of each pair and a pin is placed in a hole drilled
through the links and distance piece and rivetted at each end thus these links are
kept at the proper distance apart to allow of the working of the links placed
Bingly.
In a modification of my Invention I use flat links somewhat similar to those
previously described but the bosses on the links placed singly are so long that they
project through the hollow bosses on the links placed two side by side, the ends of
the first mentioned bosses are rivetted over the others, thus dispensing with the
distance pieces and rivetted pins previously mentioned and allowing the links
placed two side by side to be in contact. In this modification the ends of the links
placed two side by side are suitably recessed to clear those placed singly.
In another modification the links which in the first case were placed two side by
side are made in one piece, and instead of a single link between them there is a
double one consisting of a flat link with pins one at each end all made in a piece
and a plain flat link which is put on over these pins, the ends of which are then
rivetted over it.
;

page_text: Improvements in Chains for the Transmission of Motive Power,
Applicable Chiefly to Velocipedes, Hoisting Machines, Traction
I, JOHN ICELY WARMAN, of 16 Stephen Street, Coventry, in the County of
Warwick, Engineer, do hereby declare the nature of said Invention for "IMPROVE-
MENTS IN CHAINS FOR THE TRANSMISSION OF MOTIVE POWER APPLICABLE CHIEFLY
TO VELOCIPEDES, HOISTING MACHINES, TRACTION ENGINES AND OTHER MECHANICAL
PURPOSES," and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:—..
This invention being an improvement on a former invention of mine for which
a Patent was granted me on 25th August 1881 Number 3716.
The chain consists in one of its forms of alternately one and two links each of
which is shaped to fit the periphery of the wheel on which it works, and which
links are rectangular in cross section. The long side of the rectangle is at right
angles to the axis of the wheel whereon the chain works. At each end of each of
the links placed singly is a projecting circular boss, on each side of the link, that is,
four bosses on each link-On each end of each of the links, placed two, side by
side, is a projecting boss, that is, two on cach link on the same side, that is, the
side remote from the centre line of the chain. These bosses have circular recesses
in which the bosses on the links placed singly can rotate in part when the chain is
put together. To prevent the links placed two side by side from coming apart, a
distance piece is formed on one of each pair, and a pin is placed in a hole drilled
through the links and distance piece and rivetted at each end, thus these links are
kept at the proper distance apart to allow of the working of the links placed
singly. In a modification of my invention I use flat links, somewhat similar to
those previously described, but the solid pins on the links placed singly are so long
that they project through the hollow bosses on the links placed two side by side ;-
the ends of the first mentioned solid pins are rivetted over the others, thus
dispensing with the distance pieces and rivetted pins previously mentioned, aud
allowing the links placed two side by side to be in contact. In this modification
the ends of the links placed two side by side are suitably recessed to clear those
placed singly.
In another modification the links which in the first case were placed two side by
side, are made in one piece, and instead of a single link between them, there is a
double one consisting of a flat link with pins, one at each end, all made in a piece,
and a plain flat link which is put on over these pius, the ends of which are theu
rivetted over it and form an admirable and reliable coupling in cases where other
methods of chains are used and which require to be readily detached. In such
cases the pins upon which the flat link is placed are made longer so that a cottar
or nut may be used on the outside of the flat link, so that the coupling may be
easily detached. I claim any method by which this may be readily accomplished.

page_text: And in order that this my said invention may be more thoroughly understood,
have prepared the accompanying sheet of drawings by the aid of which I will
roceed more particularly to describe it. Similar letters of reference denote similar
arts in each figure in which they occur.
...
Fig. 1 is a plan view of a chain made as first described, with alternately one and
have prepared the accompanying sheet or drawings of the aid of which
proceed more particularly to describe it. Similar letters of reference denote similar
arts in each figure in which they occur.
Fig. 1 is a plan view of a chain made as first described, with alternately one and
twe lake.
Fig. 2 is an olevation of samo.
Fig. 3 is a plan of one of the side links,
Fig. 4 is an elevation of same.
Fig. 5 is a plan of one of the single or central links.
Fig. 6 is an elevation of same.
Fig. 7 is a view of the distance piece and rivet for securing the side links
together.
•
Fig. 8 is a plan view of a chain made as described in the first modification in the
preceding specification but with space between the double link.
Fig. 9 is an elevation of same.
Fig. 10 is a plan of one of the side links for same chain.
Fig. 11 is an elevation of same.
Fig. 12 is a plan of a single link for same chain.
Fig. 13 is an elevation of same.
Fig. 14 is a plan of chain made like the preceding, but with the links side by
side, placed close together back to back and the bosses recessed where necessary,
as described in preceding specification.
Fig. 15 is an elevation of same.
Fig. 16 is a part olevation and section of one of the links which are placed side
by side showing recessing.
Fig. 17 is an elevation of same.
Fig. 18 is a plan of link placed singly.
Fig. 19 is an elevation of the same.
Fig. 20 is a plan of chain made according to the last mentioned modification in
the preceding specification.
Fig. 21 is an elevation of same.
Fig. 22 is a plan of link placed singly.
Fig. 23 is an elevation of same.
Fig. 24 is a plan of one of the links with two pins.
Fig. 25 is an elevation of same.
Fig. 26 is a plan of plain flat link.
Fig. 27 is an elevation of same.
Fig. 28 is a plan of a chain having alternate pairs of links placed side by side.
Fig. 29 is an elevation of same.
Fig. 30 is a plan of one of the inner links.
Fig. 31 is an elevation of same.
Fig. 32 is a plan of one of the outer links.
Fig. 33 is an elevation of same.
Fig. 34 is a plan of chain similar to that shewn in fig. 20, except that the pins
are on alternate outer links, one on each.
Fig. 35 is an elevation of same.
Fig. 36 is a plan of inner or central link.
Fig. 37 is an elevation of same.
Fig. 38 is a plan of one of the outer links with pin at one end.
Fig. 39 is an elevation of same.
Fig. 40 is a partial elevation of wheel and chain.
Fig. 41 is a section of rim of wheel on line Y Z.
Fig. 42 is a section of link as in fig. 30 but shewing it before the holes are bored.
a a figs 1 2 5 and 6 are the central links in chain constructed according to my
invention, having projecting bosses a¹ on each side at each end-these bosses tako.
:

page_text: into recesses 6* in the links b; these links b (figs 1 to 4) are placed side by side as
drawn and they are united and kept the proper distance àpart by the rivet b' and
distance-piece bo, the rivet passes through the hole 63 in the link 6;-see figs. 1, 3,
and 7.
In the modification shewn in figs. 8 to 13, c c are the central links, having
bosses c¹ c¹ on each side at each end, but these bosses are longer than those on the
links ad d are the side links having projecting bosses d' d¹ on one and the same
side at each end ;-The bosses c¹ pass through the holes d' d' in the bosses d¹ and
are rivetted over as shewn in fig. 8.
In the modification shewn in figs 14 to 19, c c are the central links similar to
those in fig. 8, but the side links e e are placed close together back to back, as
shewn in fig. 14.-The bosses c¹ c¹ pass through the holes e e² in the links e e and
are rivetted over as shewn in fig. 14. The links ee have recesses e³ e³ to allow
of the necessary movement of the parts of the chain when passing over a chain
wheol.
In the modification shewn in figs 20 to 27 there are solid links ff, having
holes fat each end; these solid links are in the centre of the chain;-the side
links g g each have pins g¹ g¹, made all in a piece with them ;-these pins g¹ g¹
pass through the holes f¹¹ in the central links, and at the end of each pin g₁ is a
smaller part g2, which passes through a hole h¹ in the side link h, and is then
rivetted over as shewn in fig. 20, these side links h h are plain flat links having
a hole near each end.
In the modification shewn by figs 28 to 33 there are alternate sets of links
placed two side by side, that is, an inner set and an outer set;-the inner links
marked d are exactly like those in figs 8 and 10, but the outer ones ; have each
a pin with a small end at one end and on one side only-The inner links d d
are placed with their bosses inwards, then the outer links jj are placed with the
pins passing through the links d d alternately from each side as shewn in
fig. 28; the ends are then rivetted over.
The modification shewn in figs 34 to 39 is like that shewn in figs 20 to 27
except that the outer links kk are all alike each having a pin with a sinall
end on one end and one side only. The outer links are put on with their
pins in alternate directions passing through the holes in the links ff and the
opposite links -The small ends are then rivetted over as shown in
fig. 34.
Fig. 40 shows a partial elevation of chain wheel and chain and fig. 41 a section
of rim of same; this is merely introduced to show the application of the Chains
and not as a novelty.
Fig. 42 shows a link d with bosses d' d' before the holes are bored.
The modifications shown in figs. 20 to 27 and figs. 34 to 39 are specially adapted
to lawn mowers and the others to tricycles or Safety bicycles though they may any
of them be used for other purposes where a pitch chain is required.
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
First. The construction of a chain with the links formed with solid bosses and
placed as shown in figures 1 to 7 of this specification.
Second. The construction of a chain with links with solid bosses formed and
placed as shown in figures 8 to 13.
4
Third. The construction of a chain with links formed with solid pins and bosses 5
and placed as shown in figures 14 to 19.
Fourth. The construction of a chain with links formed with solid pins and bosses.
and placed as shown in figs. 20 to 27.
Fifth. The construction of a chain with links formed with solid pins and bosses
and placed as shown in figs. 28 to 33.
5

page_text: Sixth. The construction of a chain with the links formed with solid pins and
bosses and placed as shown in figures 34 to 39.
Seventh. The general arrangement and combination of parts forming chains for
tricycles lawn mowers and other purposes as set forth in this specification and
shewn on accompanying drawing.