Improvements in Combination Door Hooks and Buffers.
Year: 1893

page_text: Date of Application, 1st Apr., 1893
Complete Specification Left, 30th Dec., 1893-Accepted, 3rd Mar., 1894
PROVISIONAL SPECIFICATION.
Improvements in Combination Door Hooks and Buffers.
We, JOHN MCAUSLAND DENNY, of Leven Ship Yard, Dumbarton, North
Britain, Shipbuilder, and Ross THOMSON, of the same place, Joiner, do hereby
declare the nature of this invention to be as follows, that is to say :-
This invention has chiefly for its object the construction in an improved manner
of self-acting combined door hook and buffer, for use on board ship or any other
place where desirable to automatically secure doors when open. The apparatus
made according to this invention comprises a brass, or other preferable metal,
casting, having a plate which is provided with holes for fixing with screws; a tube
containing at end an india rubber plug projecting sufficient to prevent tube from
striking against door when thrown back and also to act as a buffer.
On face of plate and upper side of tube are provided "jaws" for fixing end of
hook, a small screw pin passing through.
The book is curved to admit the finger between top of tube and hook for
unfastening. A metal "boss head" with slot is screwed to door for receiving point
of hook.
Dated this Thirty-first day of March 1893.
JOHN
MCAUSLAND DENNY,
ROSS THOMSON,
Leven Ship Yard, Dumbarton.
COMPLETE SPECIFICATION.
Improvements in Combination Door Hooks and Buffers.
We JOHN MC AUSLAND DENNY, of Leven Ship Yard, Dumbarton, in the
County of Dumbarton, North Britain, Shipbuilder, and Ross THOMSON, of the
same place, Joiner,-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 has for its object the construction in an improved manner of
self-acting combined door hook and buffer, for use on board ship, or any other
place where desirable to automatically secure doors when open.
On accompanying sheet of explanatory drawings examples are delineated of
apparatus made according to this invention.
or
" catch
Figures 1 and 2 are a plan and side elevation of the apparatus.
Figures 3 and 4 are a plan of "boss head"
and india rubber buffer.
The same reference letters are used to mark the same or like parts wherever they
are repeated.
The apparatus made according to this invention comprise a brass, or other
preferable metal, casting, having a plate A, which is provided with. holes B, for
fixing with screws; a tube C, containing at end an indiarubber plug D, projecting
sufficient to prevent tube C, from striking against door when thrown back and also
to act as a buffer. On face of plate A, and upper side of tube C, are provided
"jaws" E, for fixing end of hook G, a small screw metal pin F, passing through.
The hook G, is curved to admit the finger between top of tube C, and hook for

page_text: "
unfastening. A metal "boss head or "catch" H, with slot, is screwed or
fastened to door for receiving point of hook G.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is ;-
The construction, arrangement and combination of parts constituting the
improved apparatus for combined door hooks and buffers for automatically securing
doors when open, substantially as hereinbefore described and as shown on accom-
panying drawings.
Dated this Twenty-ninth day of December 1893.
JOHN MAUSLAND DENNY.
ROSS THOMSON.