Year: 1885

page_text: I ALEXANDER SPENCER of 77 Cannon Street in the City of London Engineer
do hereby declare the nature of this invention to be as follows:-
My invention has reference to the construction of buffers such as are used for
Railway and Tramway rolling stock and stations and the nature thereof will be
readily understood from the following description, reference being had to the
annexed sheet of illustrative drawings which are given merely by way of examples,
Figs. 1, 2 & 3 being central longitudinal sections of three modifications and
Figs. 1A, 2A & 3 A corresponding end views through a b, c d'& ef respectively.
In each case the plunger A works in a buffer case B and has its outward
movement limited by means of a plate C secured on a bolt or rod by preference
formed solid with the base plate D or it may be secured thereto or may pass there-
through in which latter case the end wise movement of the bolt or rod towards the
plunger must be limited by suitable means such as a nut.
An internal flange E is made solid with or fastened to the plunger A.
To admit the plate C between the flange E and the plunger bead, the flange E is
cut away sufficiently to allow the plate C to pass through edgeways as shewn in
Fig. 1 A & 2A or else the plate C is cut away on one or more edges to allow it to
pass by the flange E. without cutting the flange E
'
The plate C having been passed through it is then turned into its proper position.
The flange E may be made up of separate pieces fastened in a suitable manner to
the plunger. In cast buffers the flange E is cast with the requisite space or spaces
for allowing the plate C to pass.
The buffer head is perforated for the introduction of a key or device for turning
the plate C or the nut whereby it is to be secured to the bolt or rod F to which
end the plate or the nut (as the case may be) is provided with a square shaped hole
or recess or the equivalent thereof to receive the end of the key for turning it.
These buffers or the parts of them may be made of any suitable metal and steel
or India Rubber springs may be used.

page_text: I, ALEXANDER SPENCER, of 77 Cannon Street, in the City of London, 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:-
My invention has reference to the construction of buffers such as are used for
railway and tramway rolling stock and stations.
In such a buffer, according to my invention, the longitudinal movement of the
plunger is limited by means of a flange or projection or projections at the interior
of the plunger coming into contact with a plate or flanged nut on a bolt or rod
formed with or attached to the base plate of the buffer case, and in order to enable
the said stop plate or flanged nut to be introduced into the plunger past the internal
flange or projection, the said flange or internal projection is cut away at two
opposite parts or is so formed as to leave an opening of increased width sufficient
to admit of the passage of the plate or flanged nut edge-ways as will be hereinafter
more particularly described.
Referring to the annexed sheet of illustrative drawings, Figs. 1, 2, 3 and 4 are
central longitudinal sections of four modifications. Figs. 1° and 1' are cross-sectional
views of Fig. 1. Figs. 2 and 2b are cross-sectional views of Fig. 2. Figs. 3*
and 3b are cross-sectional views of Fig. 3, and Figs. 4 and 4 are cross-sectional
views of Fig. 4.
An
In each case the plunger A works in a buffer case B and has its outward
movement limited by means of a plate or flanged nut Ơ secured on a bolt or rod,
by preference formed solid with the base plate D, or it may be secured thereto, or
may pass therethrough, in which latter case the end-wise movement of the bolt or
rod towards the plunger must be limited by suitable means such as a nut.
internal flange E is made solid with or is fastened to the plunger A. To admit of
introducing the plate C between the flange Ę and the plunger head, the flange E
is cut away sufficiently or is so formed as to allow the plate C to pass through
edgeways as shewn at E¹ respectively in Figs. 1b, 2b and 3b, or else the plate C is
cut away on one or more edges or is made of less diameter in one direction than in
a direction at right angles to allow it to pass through a complete annular flange E
such as is represented in Fig. 4b without cutting the flange E. In the arrangement
illustrated in 4b, two opposite segments of the plate are removed, but it may be
made of an oval or approximately oval form or of any other form so long as it be
narrower in one direction than in a direction at right angles thereto, as shewn in
Fig. 4.
C
The plate having been passed through, it is then turned into its proper
position. The flange E may be made up of separate pieces fastened in a suitable
manner to the plunger. In cast buffers the flange E is cast with the requisite
space or spaces for allowing the plate C to pass, except in cases where a specially
formed plate or flanged nut is used as described with reference to Fig. 4b. The
buffer head is perforated at A' for the introduction of a key or device for turning
the plate or flanged nut C or the nut whereby it is secured to the bolt or rod F to

page_text: which end the plate or the nut, as the case may be, is provided with a square
shaped hole or recess C¹ or the equivalent thereof to receive the end of the key for
turning it.
In the arrangements shewn in Figs. 2 and 3, the plate C is made separate from
the nut C³ whereby the plate is retained in position upon the bolt or rod F. These
buffers or the parts of them may be made of any suitable metal and steel or india
rubber springs may be used.
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
In a buffer in which the longitudinal movement of the plunger is limited by a
plate on a bolt or rod formed with or attached to the base plate, providing within
the plunger a flange or projection or projections formed with or permanently
attached to the plunger and so forming and arranging such flange or projection or
projections or the plate, that the said plate can be introduced into that part of the
plunger situate between the flange or projection or projections and the buffer head
and can be secured to the bolt or rod without its being necessary for this purpose
to remove and replace any part of the flange or projection or projections of the
plunger or its equivalent substantially as described with reference to and illustrated
respectively in Figs. 1, 1ª, 1', in Figs. 2, 2, 2b in Figs. 3, 3, 3b and in Figs. 4, 4*, 4b
of the accompanying drawings.