MENTS IN THE CONSTRUCTION OF DETACHABLE DRIVE CHAINS
Year: 1885

page_text: JAMES BRADSHAW Fitter 36 Hargreaves Street Haslingden and MATTHEW
HENRY BRADSHAW, Draughtsman 65 East View, Bury Road Haslingden in the
County of Lancashire do hereby declare the nature of our invention for IMPROVE-
MENTS IN THE CONSTRUCTION OF DETACHABLE DRIVE CHAINS, to be as follows:-
Each link consists of two side bars A and A¹, Fig. 1, connected at one end by a
wide open hook, B Fig. 4, and at other end by a round cross bar C, Fig. 1, Each
of the side bars at point marked D, Figs. 1 and 4 have a portion of a circular flange
cast upon them, of a diameter greater than the cross bar C, At other end of side
bars are formed recesses, corresponding in diameter to the circular portion of flanges
at other end of side bars, and shewn at E Fig. 4.
The opening in each hook is made of sufficient size & of the form F Fig. 4 to
admit of the cross bar O of a corresponding link to pass into it when the links are
placed in the position indicated at Fig. 3, On the inserted link being turned into
the position indicated in Fig. 2, the cross bar C of the inserted link passes into a
semicircular bed, corresponding in diameter to the cross bar of the inserted link,
and the circular portion of flanges of side bars pass into the recess E Fig. 4, The
link is thus prevented from passing out of the hook of corresponding link until
they are again placed in the position indicated at Fig. 3.

page_text: improvements in the Construction of Detachable Drive Chains.
JAMES BRADSHAW Fitter 36 Hargreaves Street Haslingden MATTHEW HENRY
BRADSHAW Draughtsman 65 East View Bury Road Haslingden in the County of
Lancaster, do hereby declare the nature of our invention for IMPROVEMENTS IN
THE CONSTRUCTION OF DETACHABLE DRIVE CHAINS, and in what manner the same
is to be performed, to be particularly described and ascertained in and by the
following statement:―
This invention has for its object, Improvements in the connection of detachable
drive chains, and consists as follows.
Each link consists of two side bars A and A¹ Fig. 1, connected at one end by a
wide open hook B Fig. 1, and at other end by a round cross bar C, Each of the
side bars at the point D Fig. 1 have a portion of a circular flange cast upon them
of a diameter greater than the cross bar C, At other end of side bars are recesses
formed corresponding in diameter to circular portion of flanges at other end of side
bars and marked E Fig. 4.
The opening in each hook is made of sufficient size, and of the form F. Fig. 4 to
admit of the cross bar C of a corresponding link to pass into it when the links are
placed in the position shewn in Fig. 3. On the links being turned into the position
indicated at Fig. 3 the cross bar of the inserted link passes into a semicircular bed,
corresponding in diameter to the cross bar of the inserted link and the circular
portion of flanges of side bars pass into the recesses E.
The inserted link is thus prevented from passing out of the hook of corre
sponding link, until they are again placed in the position indicated at Fig. 3.
Having now particularly described, and ascertained the nature of our said
Invention and in what manner the same is to be performed, we declare that what
we claim is,
1st. The construction of Detachable driving chains, substantially as herein before
described and illustrated in the drawings annexed to provisional specification.
2nd. The construction of Detachable driving link chains, having a open hook
and recesses in side bars at one end, and part of circular flanges at other end of
side bars, automatically locked in position by the movement of the chain.
Dated this 4th day of September 1886