Year: 1887

page_text: Date of Application, 26th Oct., 1887
Complete Specification Left, 24th July, 1888
Complete Specification Accepted, 24th Aug., 188
I, DANIEL MACNEE, of No. 2 Westminster Chambers, Victoria Street, in the
County of Middlesex, Engineer, do hereby declare the nature of this invention to be
as follows:-
In railway buffers as they are usually made, the buffer head works like a plunger in
a cylinder containing a strong spring, and it is prevented from being thrust out beyond
a certain distance by means of a central bolt.
My invention relates to a simplified construction which gives great durability and
facilities for removing and repairing the parts.
For this purpose, I form in the cylinder, near the mouth an internal shoulder,
and in the plunger of the buffer head i form near its end a circular groove in which
I fit a split spring ring, somewhat like that used for packing a piston, this ring being
of such thickness that when the buffer-head is fully out, the ring bears against the
internal shoulder of the cylinder, thus forming a stop preventing the head from being
pushed farther out.
The bottom of the cylinder is made removeable by making it as a disc with two or
more projecting wings which pass freely through notches formed at the base of the
cylinder, but which on the disc, being turned partly round, hold it in
position.
When it is desired to separate the parts, I partly turn the bottom disc and remove
it, then take out the spring and then pushing in the buffer head till its spring ring
presents itself beyond the end of the cylinder, I spring out the ring, whereupon the
buffer head can be freely withdrawn from the cylinder.
The removeable bottom has a strong stud projecting from it inwards through the
centre of the buffer spring, this stud forming a stop for the head when it is pushed
fully in and preventing the overstraining of the buffer spring.

page_text: The plunger of the buffer head is made hollow and filled partly up with alternate
dises of hard wood and caoutchouc, and a plate bearing against the innermost caout-
chouc disc receives the pressure of the spring, and of the above mentioned stud when
the head is pushed fully in.
1
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
•
An Improvement in Buffers for Railway Vehicles.
I, DANIEL MACNEE of No. 2 Westminster Chambers Victoria Street in the County
of Middlesex, Engineer 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 :―
In railway buffers as they are usually made, the buffer head works like a plunger in
a cylinder containing a strong spring, and it is prevented from being thrust out beyond
a certain distance by means of a central bolt. My invention relates to a simplified
construction which gives great durability and facilities for removing and repairing
the parts, as I will describe referring to the accompanying drawings. Fig 1 is a
longitudinal section of a buffer according to my invention and Fig. 2 is an elevation
of the rear end.
I form in the cylinder an internal shoulder c, and on the plunger P of the buffer
head H form near its end a circular groove in which I fit a split spring ring R some-
what like that used for packing a piston, this ring being of such thickness that when
the buffer head is fully out, the ring bears against the shoulder c, this forming a stop
which prevents the lead from being pushed farther out. The bottom B of the cylinder
is made removeable by making it as a disc with two or more projecting wings W which
pass freely through notches N formed at the base of the cylinder, but which on the
disc being turned partly round as shewn in Fig. 2 hold it in position. When it is
desired to separate the parts, I partly turn the bottom disc B and remove it, then take
out the spring S and then pushing in the buffer head till its spring ring R presents
itself beyond the end of the cylinder, I spring out the ring, whereupon the buffer
head can he freely withdrawn forwards from the cylinder. The removeable bottom B
has a strong stud D projecting from it inwards through the centre of the buffer
spring S this stud forming a stop for the head when it is pushed fully in and preventing

page_text: the overstraining of the buffer spring. The plunger P of the buffer head is made
hollow and filled partly up with alternate discs of hard wood T and caoutchouc K and
a plate L bearing against the innermost caoutchouc disc receives the pressure of the
spring, and of the above mentioned stud when the head is pushed fully in.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, I declare that what I
claim is:
11
The construction and use of buffer for railway vehicles substantially as described and