Improvements in Draw-bar Hooks for Railway and other similar Vehicles.
Year: 1889

page_text: Date of Application, 29th May, 1889
Complete Specification Left, 25th Feb., 1890-Accepted, 29th Mar., 1890
PROVISIONAL SPECIFICATION.
Improvements in Draw-bar Hooks for Railway and other similar
Vehicles.
I WALTER CHANNON of 33 Rucklidge Avenue, Harlesden Green in the County of
Middlesex, Railway Wagon Builder, do hereby declare the nature of this invention
to be as follows:-
This invention relates to improvements in draw bar hooks for Railway and other
similar vehicles, whereby the possibility of the coupling chain becoming accidentally
displaced and the risk of same being taken off and stolen is entirely obviated.
According to this invention the inner end of the hook, or that part of same situate
nearest the vehicle to which the draw bar is attached, and which has formed therein
the slot for receiving the coupling link, is provided, at the entrance to such slot, with
lugs or projections, which lugs or projections extend on both sides of the hook, and
when the link is in' position in the slot, effectually prevent its displacement by being
lifted off over the hook. The slot usually formed in the hook for the coupling link to
rest in, and which constitutes a second hook, may be disposed either vertically, or at a
slight angle, but I prefer it at an angle inclining towards the wagon or other vehicle,
as it then prevents the link rising therein, and becoming displaced, when the coupling
is slackened.
To place the coupling in position on the improved draw bar hook, it is simply
necessary to detach the draw bar from the vehicle, and slip the end link, or one of the
end links, which may be of the ordinary construction, onto the same, from the screw
or eye end, and let it drop into the inclined slot; and when in this position (the
draw bar having been re-adjusted) it cannot come off the hook, by reason of the lugs
or projections being wider than the space between the two long sides of the link,
nor displaced when the coupling is slackened, by reason of its coming in contact with
the inclined slot.
0 1
1000
E. P. ALEXANDER & SON, Fels. Inst. P.A.,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Draw-bar Hooks for Railway and other similar
Vehicles.
I, WALTER CHANNON, of 33 Rucklidge Avenue, Harlesden Green, in the County
of Middlesex, Railway Wagon Builder, do hereby declare the nature of this invention
and in what manner the same is to be performed to be particularly described and
ascertained in and by the following statement: -
This invention relates to improvements in those draw bar hooks for railway and
similar vehicles, wherein the end link of the coupling chain engages within a slot,
in lieu of being passed, before closing, through a hole in the draw bar hook, and after-
wards welded.
Its chief object is to prevent the felonious removal of the coupling chain from the
draw bar hook and its accidental displacement from the slot with which it engages,
the chain employed being of ordinary construction.
For this purpose my invention consists essentially in providing a draw bar hook
of the above mentioned type, with lugs or projections, extending upon either side
thereof, so arranged and disposed as to prevent the possibility of the coupling chain
being removed from the draw bar, unless the draw bar itself is detached from the

page_text: vehicle to which it is secured. I also prefer that the slot with which the end link
of the coupling chain engages should incline slightly from top to bottom towards
the rear end of the draw bar hook, which disposition will prevent the link from
rising in the slot, and becoming accidentally displaced, when the coupling becomes
slack.
I will now proceed to describe my invention more particularly, and the manner in
which I prefer to carry out the same, having reference to the accompanying drawings
in which similar letters refer to corresponding parts in all the figures:
Figure 1 is a side elevation of the improved draw bar hook.
Figure 2 is a plan thereof.
Figure 3 is an end view.
a is the draw bar, the usual hook at the front end thereof which receives the
coupling chain of the adjacent vehicle, and c a downwardly extending slot, with which
engages the end link of the coupling chain d of ordinary construction. I prefer that
this slot e should incline slightly from top to bottom towards the rear end of the
draw bar a, as shewn in the drawings, which arrangement will prevent the liability
of the link d rising in the slot and becoming displaced when the coupling is slackened,
as might happen were this slot vertical or inclined in the other direction.
the lugs or projections formed upon the draw bar hook and extending upon either
side thereof. These lugs or projections e are situate at or near the entrance to the slot c,
and upon that side of such slot nearest the hook or front end of the draw bar. These
lugs e must be slightly wider than the internal width of the link of the coupling chain
connected with the draw bar for the purpose hereinafter explained.
e e are
The link d may be placed in position within the slot c, upon removing the draw bar a
from the vehicle, by slipping the link along the same from its rear end; when the
draw bar is replaced in position the coupling chain cannot possibly be removed
over the front or hook end of such draw bar, by reason of the lugs e, which, being
as before described wider than the internal width of the link held in the slot c, will not
allow such link to pass them.
It is obvious that in lieu of the lugs d, cast or formed in one with the draw bar hook,
a screw bolt passing through the draw bar, or large headed rivets, might be employed,
but I prefer the arrangement illustrated.
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 1
claim is
1. The combination with a draw bar hook provided with a slot for holding a link
of a coupling chain, of lugs or projections so arranged and disposed as to prevent
the withdrawal of the said link over the hook end of the draw bar substantially as
described.
e
2. The combination with a draw bar hook provided with a slot c inclining from top
to bottom towards the rear end thereof, of laterally projecting lugs or projections
situate at or near the entrance to such slot and upon that side thereof nearest the
hook end of the draw bar substantially as and for the purpose described and
illustrated.
Dat this orth I
T
E. P. ALEXANDER & SON, Fels. Inst. P.A.,
19, Southampton Buildings, W.C., Agents.