IMPROVEMENTS IN RAILWAY BUFFERS
Year: 1886

page_text: Date of Application, 3rd Aug., 1886.
Complete Left; 3rd May, 1887.
Complete Accepted, 3rd June, 1887.
I, DAVID NELSON ARNOLD, of Endcliffe Mount, Ranmoor, Sheffield, in the
County of York, Mechanical Engineer, do hereby declare the nature of my said
invention for "IMPROVEMENTS IN RAILWAY BUFFERS," to be as follows:-
This invention relates to railway buffers which may be adapted to any kind of
rolling stock and consists of a buffer rod or plunger working telescopically within a
tube cast onto the back plate and projecting into the cylinder.
The buffer rod or plunger when closed does not pass through the back plate but only
comes within a short distance of it, so that it cannot possibly fall out in working, but
may be immediately withrawn in case of accident or the like.
The buffer rod is inserted into the cylinder from the front and a buffer plate or screw
nut for the spring to rest against is passed over the end of the buffer rod until it
reaches the buffing projection next the neck of the plunger where it is held by means
of a key.
The spring is placed in position and the back plate with the tube, (cast in one piece)
bolted to the cylinder, and the buffer is then ready to be fixed.
The whole or any portion of the buffer rod may be made oval, square, bexagon,
octagon, or other convenient shape but with tube on the back plate or the neck of
cylinder to correspond, thereby preventing the buffer rod or plunger turning either
one way or the other.
The rod, cylinder and plates may be made of wrought iron, cast steel, or other
suitable metal.
Dated this 31st day of July 1886.
GARLICK & MCGOWAN,
Agents for the Applicant..

page_text: 1, DAVID NELSON ARNOLD, of Endcliffe Mount, Ranmoor, Sheffield, in the County of
York, Mechanical Engineer do hereby declare the nature of my said invention for
"IMPROVEMENTS IN RAILWAY BUFFERS," and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:
In carrying my invention into effect I construct a buffer with a rod or plunger
working telescopically within a tube cast onto the back plate, the said tube projecting
into the cylinder.
When the buffer rod or plunger is closed it does not pass through the back plate
but comes only within a short distance of it, so that it cannot possibly fall out in
working, but may be immediately withdrawn in case of accident or at desire.
The buffer rod is inserted into the cylinder from the front and a buffer plate or screw
nut, for the spring to rest against, is placed over the end of the buffer rod until it
reaches the buffing projection next the neck of the plunger where it is held by means
of a key. The spring is placed in position and the back plate, with the tube cast in
one piece, bolted to the cylinder, the buffer is then ready to be fixed.
The whole or any portion of the buffer rod may be made oval, square, hexagon,
octagon, or other convenient shape, but with the tube on the back plate or the neck of
the cylinder to correspond thereby preventing the buffer rod or plunger turning either
one way or the other."
By this invention I do away with the hole in the buffer plank or head stock the
_internal tube guiding the rod full length of stroke.
The rod, cylinder, and plates may be made of wrought iron, cast steel or other
suitable metal.
The accompanying drawings illustrate my invention. The same letters of reference
apply to the different views.
Fig. 1, is a side view of the buffer shewing the cylinder A one half in elevation and
the other in section, the buffer rod or plunger B, and buffer plate or screw nut C, for
the spring to rest against, and a square head D.on the end of the rod fitting into the
tube E, on the back plate F, the said cylinder being secured by nuts and bolts to the
back plate.
Fig. 2, is a section through Y, Z, shewing the square head D, on the buffer rod or
plunger B, fitting in the tube E, on the back plate of the buffer.
Fig. 3, is a side view in elevation shewing the buffer rod or plunger B with the
square end D.

page_text: 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 :-
Firstly Improvements in railway buffers which may be adapted to any kind of
rolling stock constructed with an internal tube and back plate cast in one piece the
said internal tube guiding the rod full length of stroke the said rod working
telescopically therein thus obviating the necessity of having a bole in the buffer plank
or head stock.
Secondly Improvements in railway buffers by making the buffer rod oval or other
convenient shape with internal tube or neck of cylinder to correspond so that the buffer
head cannot turn round as hereinbefore specified, described, and as illustrated by the
accompanying drawings.
GARLICK & MCGOWAN,
Agents for the Applicant.