Improvements in and relating to Machinery Driving Chains.
Year: 1894

page_text: Date of Application, 27th Dec., 1894
Complete Specification Left, 23rd Sept., 1995-Accepted, 26th Oct,
1895
PROVISIONAL SPECIFICATION.
Improvements in and relating to Machinery Driving Chains.
I, JAMES ANDREW, of 160 West George Street in the City and County of
Glasgow, Solicitor do hereby declare the nature of my invention to be as
follows
-
This invention has reference to improvements in machinery driving chains and
especially the endless chains used for driving cycles and other light vehicles, and
whereby function will be reduced to a minimum.
These chains usually consist of links formed of parallel cheek plates connected
together by transverse rivets or pins at then ends, and alternate solid links with
transverse sockets. Iferetofore these links have been mounted on plan cylindrical
loose rollers i collais mounted on the aforesaid rivets or pins; and my improvements
consist in substituting for these, duplex conoidal or tapeung rollers or ferrules on
each pin on vet. These rolleis would taper from the ends of the pins towards
then meeting edges of least diameter at the centre, and the sockets of the
connecting links would be mounted over these.
Dated the 24th December 1894.
WR M. THOMSON & Co.,
96 Buchanan Street, Glasgow, Agents.
Improvements in and relating to maoninery Driving Omams
I, JAMLB ANDREW of 160 West George Street in the City and County of
Glasgow, Solicitor, do hereby declare the nature of my invention and in what
manner the same is to be performed to be particularly described in and by the
following statement in writing; that is to say:-
This invention has reference to improvements in machinery diving chains and
especially the endless chains used for diving cycles and other light vehicles, and
whereby fiction will be reduced to a minimum.
And in oid ei that my said invention may be properly understood I have hereunto
appended an explanatory sheet of drawings in which Figure 1 is a plan view, partly
in section, and Figure 2 a side view of part of a chain to which my improvements
are shown applied, while Figure 3 is a detached section of one of the rollers.
Referring to these drawings:-The chains usually consist of links formed of
parallel cheek plates a connected together by transveise ivets or pins a' at their
ends, and alternate solid links with transseisc Bockets. Ieietofore these links b
have been mounted on plain cylindrical loose rollers o collars mounted on the
aforesaid 11vets or pins a¹ and my improvements consist in substituting for these,
duplex conoidal on tapering rollers or ferrules con each pin or rivet a¹. These
olleis e vould taper from the ends of the pins al towards their meeting edges of
least diameter and the centre c' and the sockets of the connecting links would bo
formed of coresponding shape and be mounted over these.

page_text: Having now particularly described, and ascertained the nature of my said inven-
tion and in what manner the same is to be performed: I declare that what I
claim is :-
In machinery driving chains, the mounting of duplex conoidal or tapering rollers
or ferrules on the pins or rivets connecting the links, substantially as set forth.
Dated the 21st day of September 1895.
W. R. M. THOMSON & Co.,
96 Buchanan Street, Glasgow, Agents.