Improvements in and relating to Railway-buffers.
Year: 1888

page_text: Date of Application, 26th Jan., 1888
Complete Specification Left, 26th Nov., 1888
Complete Specification Accepted, 22nd Jan., 1889
Improvements in and relating to Railway-buffers.
1 ALFRED BUCKINGHAM IBBOTSON, of Ibbotson, Brothers & Co., Limited, Globe
Steel Works, Sheffield, in the County of York, do hereby declare the nature of this
invention to be as follows :-
My invention relates to railway-buffers of that kind or class in which the buffer-
head is formed with a stem of suitable length and diameter, part of which acts as a
plunger or piston working through an aperture in the neck of the buffer case or box,
which is made either with or without a bush or bearing, and in which are enclosed
one or more coiled or other springs surrounding, or partially surrounding a part of the
aid stem of a smaller diameter or of smaller diameters than the portion thereof forming
the said plunger or piston.
My said invention comprises various novel features and is designed to improve the
construction, to increase the efficiency and durability, to facilitate the removal, and to
simplify and reduce the cost of manufacture of buffers of the kind or class herein-
before mentioned.
In carrying my said invention into practice I form the stem of the buffer-head
with an extension or continuation beyond the part forming the plunger or piston, that
is to say, the part which fits and slides backward and forward in the neck or bearing
in the buffer-case. This extension or continuation, which forms the rod or guide-pin,
may extend further within the buffer case, or entirely through a hole in the back-plate
or base-plate of the same. The back-plate secures the contents of the buffer-case
therein, and, in order to secure or fasten the buffer-head with its plunger and rod or
guide-pin firmly in its required position for compressing the spring or springs in the
said buffer-case, I sometimes form that portion of the stem of the buffer-head which
extends further into the buffer-case than the piston or plunger portion of the same
and immediately beyond it, of a smaller diameter than the piston portion, but of a
larger diameter than the further extension of the said stem (where such further
extension is used). For the purpose of making my description more easily understood

page_text: I will call this portion of the stem which is of smaller diameter than the piston or
plunger and of larger diameter than the remaining part or further extension of the
stem. "the neck of the guide-pin," and the head of the buffer which projects furthest
from the vehicle "the forward end." On the whole outer circumference, or on that
part only of this "neck of the guide-pin" which projects furthest backward from the
end of the plunger, I cut or form screw-threads to receive an internally screw-threaded
sheath or sleeve hereinafter described.
I form the said sheath or sleeve with either a portion or the whole of its external
circumference fluted or of hexagonal, octagonal, decagonal or other suitable shape
to enable a firm grip thereon to be obtained for turning it round with a spanner that
will fit over such surface. The said sheath or sleeve is made of a suitable diameter to
pass through the centre of, and support and guide the coiled or other spring that may he
used inside the buffer-case, and with a round hole throughout its length provided
internally with suitable screw-threads which correspond with and can be screwed on to
the screw-threads on the neck of the guide-pin.
I sometimes make a portion of the hole in this sheath without screw-threads and of a
sufficiently large diameter to permit the forward end thereof to be pushed or slid over the
outer edges of the threads on the neck of the guide-pin, and the remaining portion of the
said hole of smaller diameter and provided with suitable screw-threads which will fit
the screw-threads on the neck of the guide-pin.
After the said sheath or sleeve, with or without its collar, has had internal screw-
threads of the correct shape cut in the same to correspond with the screw-threads upon
the neck of the guide-pin, I preferably screw it upon a screw-threaded mandrel and
compress a few of the threads at its rear back end into a different pitch, in a similar
manner to that described for producing lock-nuts in the specification of former Letters
Patent granted to me and dated the 15th March A.D. 1887, No. 3929, or I make
these few threads of a smaller diameter in the manner described in the specification
of former Letters Patent granted to me and dated the 8th September A.D. 1886,
No. 11438, or I otherwise compress the said threads or render them unfit to engage
with the threads on the neck of the guide-pin, so as to form locking threads by means
of which the said sheath or sleeve with the collar can be so firmly secured upon the neck
of the guide-pin that no reasonable amount of concussion and vibration can afterwards
loosen them. Instead of forming locking threads in the sheath or sleeve, 1 sometimes
make a few of the threads at the forward end of the neck of the guide-pin to serve
as the locking threads.
Against the rear end of the piston or plunger portion of the stem and upon the
portion of the neck of the guide-pin nearest thereto, I place a flange or collar of
suitable thickness and diameter not only to bear the shocks between the spring or
springs and such piston or plunger, but also to abut closely against the inner end of
the bush in the neck of the buffer-case, or against the inner end of the thickened solid
neck thereof, when the buffer is not under compression, to prevent the buffer stem
being driven out of the case, and I may secure the said flange or collar in its place
either by screwing it on the neck of the guide-pin (which neck at that point may have
a larger diameter than that part of the stem to be covered by the sheath or sleeve,) or by
attaching it securely to the forward end of the said sheath or sleeve, by welding it thereto
or by screwing it thereon or otherwise. When the flange or collar is secured by means of
screw-threads, I form a few of the said screw-threads so as to produce locking threads as
hereinbefore described and provide for resisting the loosening effect of concussion and
vibration. In order to reduce the number of parts, I preferably make the herein before
described sheath or sleeve and flange or collar in one solid piece. If however the
flange or collar does not form a part of, or is not secured to the said sheath or sleeve,
I form a flange on the sheath or sleeve to press against and support it in position.
I prefer to make the stem of the buffer-head of such length that it will pass through
the back-plate or base-plate of the buffer-case so as to obtain a bearing in addition to
that obtained by the plunger or piston portion of the same in the neck of the said
case. I form this further backward extension of the guide-pin of as small a diameter

page_text: .
as or smaller than the bottom of the screw-threads on the neck of the guide-pin, so
that the flange or collar and sheath, or flanged sheath can be easily passed or slid over
it. In some instances, however, I make that end which passes through and takes its
bearing in the hole or aperture in the base-plate of triangular or other suitable
section and the hole in the said base-plate of a corresponding shape or section, to
In order to still more
prevent the buffer-head from turning round when in use.
effectually prevent any possibility of the buffer-head and its stem turning round
when in use, 1 sometimes make the whole periphery of the plunger or piston
portion of the stem of a square, fluted, octagonal or other suitable form and also make
the interior of the aperture in the neck or cylinder of the buffer-case or of the bush
therein of a corresponding shape to prevent such turning.
For the purpose of securely screwing the locking sheath upon the neck of the guide-
pin, after the stem of the buffer-head has been inserted as far as it will go into
the buffer-case before the spring or springs have been put into the said case, and
before the back or base plate has been attached thereto, I preferably employ a powerful
double-ended wrench or spanner having an elongated boss provided with a hole corre-
sponding to the shape of the periphery of the back end of the sheath. This boss
projects as far as is necessary into the buffer-case, and over the back end of the
sheath to allow of the said sheath being tightly screwed on the neck of the said
guide-pin. For the purpose of forming a stop to prevent the coiled or other spring or
springs from being compressed to its or their utmost extent, and thereby obviate any
liability to breakage of the said spring or springs, I regulate the length of the sheath
so that, when the buffer is compressed, the back end of the said sheath will strike
the back or base plate, before the spring is totally compressed; this striking of the
back end of the sheath against the base-plate will also have the tendency still
further to compress some of its internal screw-threads, and thus render its hold on
the stem of the buffer-head still tighter. Both in securing the collar and sheath or
flanged sheath within the buffer-case to the stem of the buffer-head, and in taking
them to pieces with the above described wrench or spanner, it is necessary that the
buffer-head itself should be secured or held tightly to prevent its turning round. To
effectually ensure this result, I prefer to fix the buffer-head in a vice like those used
for holding articles to be planed in a planing machine and having jaws of a shape
that will fit and grip tightly the periphery of the said buffer-head.
In order to secure the base or back plate more securely to the buffer-case, I not
only secure the same together near the periphery of such back or base plate and
of the flange of the said buffer-case by any kind of lock-nuts and bolts counter-
sunk or otherwise, but also, instead of getting the additional bearing for the extension
of the stem or guide-pin in a centre hole in the said base-plate, 1. modify the sheath
or sleeve and shorten the neck of the said guide-pin, and, instead of flattening the
pitch of the internal threads in the said sheath or sleeve which are nearest the back
end of the same, I compress a sufficient number of the said internal threads nearer
the centre of the said sheath or sleeve by using two screw-threaded mandrels, one in
each end while so compressing, so that the forward end of such sheath or sleeve may
first be secured on the neck of the guide-pin and after the base-plate has been
attached to the buffer-case, a separate bolt, with any suitably shaped head that can be
turned by a spanner and will fit at its neck and bear against the back side of such
base-plate, can be inserted and screwed into the back end of such sheath or sleeve till
it also not only enters the locking threads therein, but more effectually binds the
back-plate to the buffer-case, while the buffer is not under compression.
I sometimes construct the neck of the buffer-case which acts as the cylinder or
guide for the piston or plunger in one piece (including the thickened part) with the
buffer-case itself, or 1 may give the said neck the necessary thickness and shoulder
internally by inserting in the neck while heated, a bush formed in one or more parts
and with one or more indentations on its outer surface and closing the neck thereon by
any well known means; the said bush is thus secured permanently by the contraction
of the neck thereon while cooling. 1 sometimes, moreover, form the internal part of

page_text: the bush to fit and correspond with the periphery of the piston or plunger of what-
ever shape it may be other than round, and I firmly secure the said bush to the
neck by locking threads, that is to say, I may form screw-threads in the interior
of the neck of the buffer case the greater portion of which will correspond with
similar screw-threads, on the external surface of such bush (or vice versa) and by
means of a bar that will fit the internal hole in such bush I exert sufficient force to
turn and screw the said bush into the neck and thus fasten it therein in such a manner
that concussion at either end will have the tendency to still further secure both parts
together. I prefer, however, to cast or forge the bush preferably of steel and in one
piece, with a hexagonal, octagonal fluted or other shaped hole therein, which, as nearly
as is found advisable, corresponds with the finished exterior of the piston or plunger
which is intended to be passed into and through it and to slide therein; the said
bush is then heated and has driven or forced through it a bar or punch which, with
the exception of its point or entering end (which may be tapered), is formed parallel
and of an external size and shape to form the internal hole in the said bush of
the required dimensions.
When I make the piston or plunger of a square, hexagonal, octagonal, fluted or
of other flat or hollow sided form, I preferably impart the said form by forging
while heated and placing the said piston or plunger portion between proper dies for
that purpose, or by rolling the said portion between rolls of the correct shape so that
little, if any, tooling to perfect the form will be necessary.
When the internal size and shape of the buffer-case, which is to contain the spring
or springs and guide-pin, will permit, instead of making the sheath or sleeve in one
piece with the flange or collar which fits or abuts against the inner end of the
piston and bush or solid neck, I form the said collar in one or more separate parts and
insert them so that they will fit on and into a gate or slot turned in the neck of the
guide-pin close up to the back end of the plunger; and, in order to secure the same,
I turn on the periphery of the said collar an indentation or groove of sufficient size to
permit of binding the said parts together with a sufficiently strong cord, strap or
elastic band; but, by preference, with an elastic coiled split ring or other circular
spring which may be forced over one side of the collective peripheries of the
parts of such collar and will bed itself into the said indentation or groove and thus
hold the said parts sufficiently tightly together in and on the gate of the guide-pin,
until the sheath or sleeve formed as hereinafter described, is screwed up against and
into or over the said collar so as to make it more permanently secure. In this
case I make the sheath or sleeve with a solid flange which, near its periphery
and on the forward end, will fit against and extend over the external diameter of
the aforesaid flange, which is made in parts, and thus permanently secure
those parts in position. Or I turn a gate or slot sideways into the side of the
collar before it is separated into parts by breaking or cutting, or after such parts have
been closed tightly together, for this purpose, the gate being of such size as to corre-
spond with the forward end of the sheath which will enter it while the sheath is being
screwed up into its proper position; the parts of the collar will then be thereby held
permanently and securely in position without necessitating the use of a flange made
in one piece with the said sheath and large enough to embrace or pass over the
outermost diameter of such parts of the said collar.
When a separate collar formed in parts is secured by the gate or gates in the neck
of the stem of the buffer-head, as above described, and where such collar is to be
still further secured by one of my screw-threaded sheaths, no part of larger diameter
being provided on the shaft for that purpose, I form the internally screw-threaded
sheath with its tubular part externally round, by forming, at the back end of the said
sheath, a sufficiently large and properly shaped head for turning it, which head will
not pass through the round hole in the back-plate, so that, after fixing the said collar
and the spring in their proper position inside the case and after having placed the
base-plate in position against the buffer case, the tubular end of the said sheath
can be inserted through the back-plate and turned and screwed up into its proper

page_text: position with respect to the guide-pin and to the collar, which is made in parts, from
the outside of the said back-plate, (through which its shaft only can be passed), by
means of an ordinary spanner applied to the head of the said sheath.
In some instances, in addition to screwing the sheath or sleeve upon the guide-rod, I
screw a nut thereon behind the said sheath or sleeve. The screw-threads, in this case,
may if desired be right and left hand threads.
It is obvious that I can somewhat modify the construction of my improved buffers
without departing from the nature of my said invention. For instance I can make
various combinations of the different improvements hereinbefore described.
Dated this 25th day of January 1888.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in and relating to Railway-buffers.
I, ALFRED BUCKINGHAM IBBOTSON, of the firm of Ibbotson, Brothers & Co. Limited,
Globe Steel Works, Sheffield in the County of York, 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 relates to railway-buffers of the kind or class wherein the buffer-head
is formed with a rod or stem of suitable length and diameter, part of which works like
a plunger or piston in the neck of the buffer case or hox, the latter being made either
with or without a separate bush or bearing, and having enclosed therein one or more
coiled or other springs surrounding a part of the said rod or stem of smaller diameter
than the said plunger or piston.
My said invention comprises various novel features and is designed to improve the
construction and increase the efficiency and durability of buffers of the kind or class
herein before mentioned, to facilitate their renewal or readjustment when injured or
displaced, and to simplify and reduce the cost of their manufacture.
In the accompanying drawings-
Figure 1 is a plan, parily in horizontal section, of one form of my improved buffer.
Figure 2 is a transverse section on the line x, x. Figure 1, the spring being
removed.
Figure 2 shows in transverse section various forms of the locking sheath or tube
hereinafter described.

page_text: of my improved buffer.
Figure 4 is a transverse section on the line a¹, a¹, Figure 3, the spring being
removed.
Figure 5 is a plan, partly in horizontal section, showing a further modification of
my said invention.
Figure 6 is a transverse section on the line 2, 2, Figure 5, the spring being
removed.
Figure 7 is a plan partly in horizontal section.
Figure 8 a rear elevation, and
Figure 9 a transverse section on the line 3, a, Figure 7, the spring being removed,
illustrating a still further modificatian of my invention.
Figure 10 is a plan, partly in horizontal section, of a part of the buffer illustrated in
Figures 7, 8 and 9, showing the said part detached.
The remaining Figures of the drawings are hereinafter referred to.
Like letters of reference indicate corresponding parts throughout the drawings.
a is the buffer-case, which is formed with the neck a' and with the flange a². a is
the back-plate or base-plate, which is secured to the buffer-case by the well known
Ibbotson's Patent steel bolts and lock-nuts countersunk as ata, or by other convenient
means. is the buffer rod or stem, the head and 72 the plunger or piston of the said
rod or stem. c is a screw-threaded locking sheath or tube, which is fitted upon a
screw-threaded portion 63 of the buffer rod or stem, the part 4 of which extends
through the back-plate a and forms the guide-pin. d is the buffer-spring, which is
placed between the collar c' and the base-plate a³.
In the buffer shown in Figures 1 and 2, and in that shown in Figures 7, 8 and 9, a
In the
separate bush as is fitted and secured in the neck a¹ of the buffer-case a.
buffers shown in Figures 3 and 4 and in Figures 5 and 6, the neck at is thickened to
form a shoulder for retaining the buffer-rod in the case a.
The locking sheath or tube c shown in Figures 1 and 2 is made in one piece with
the collar c which is formed as a flange thereon, and a few of the screw-threads as
at c² are compressed to obtain a difference of pitch of the said threads and thus ensure
a locking grip of the sheath or tube upon the screw-threaded portion 63 of the rod or
stem. This sheath or tube, or a portion thereof is made octagonal in transverse
section as shown in Figure 2, to enable the projecting portion A' of the box-spanner A
shown in Figures 16 and 17 (if made internally of corresponding form) to firmly
grasp the said sheath or tube and turn the same for screwing it firmly upon the stem 63.
The said sheath or tube, instead of being octagonal, may be made hexagonal, oval,
semi-octagonal, fluted, or pentagonal in transverse section as shown at c³, c³, e, cº, e²
(Figure 2), or of other suitable form for the
purpose specified.
In the buffer shown in Figures 3 and 4, the separate bush is dispensed with, the
neck a¹ of the buffer-case being, as above stated, made of sufficient thickness to act as
the grinding cylinder for the plunger or piston 2 to slide through. The flanged
locking sheath c is shown with only a few internal screw-threads (of. varying pitch) at
its rear end fitting upon screw-threads on the stem 63 to attach it firmly thereto.
In the modification of my invention illustrated in Figures 5 and 6, the locking
sheath c is externally fluted and is made separately from the collar c¹ which is screwed
upon the neck of the plunger.
In the modification shown in Figures 7 to 10, the guide-pin is formed integrally
with the locking sheath or tube c and is made with a head 66 of any suitable form to
adapt it to be grasped and turned by a spanner. A few of the screw-threads as at c²
are made of somewhat smaller diameter than the remainder of the said threads to form
locking threads. The collar e' has two holes therein as at g, Figure 9, to receive
projections on a tool for screwing such collar on the neck of the buffer-stem.
which is
Figure 10 shows detached the combined guide-pin and locking sheath
introduced through the back-plate a³ and secured upon the buffer-stem, after the
flange or collar c has been screwed upon the neck thereof, the spring d inserted, and
the back-plate secured to the flange a² of the buffer-case; the back-plate is thus more

page_text: efficiently secured to the buffer-case and stem. The separate bush a³ is formed with
external screw-threads, some of which are made to correspond with female screw-
threads tapped in the neck a¹ of the buffer-case, and the remainder of which at a® are
made of a somewhat larger diameter to form locking threads.
This mode of securing the bush is very advantageous when the interior of such bush
is formed as hereinafter described with reference to Figures 18 to 21, or when the
said bush is internally of other suitable form for the purpose hereinafter mentioned.
Figure 11 is a plan, partly in horizontal section, showing another modification
wherein a flanged locking sheath c similar to that described with reference to Figures 1
and 2 is used; the locking threads, instead of being situated at the rear end of the said
sheath, are, in this case, formed midway or about midway between the ends thereof.
The said locking threads may be made of a smaller diameter than the other threads
by external pressure, or they may be made of a compressed pitch by the means shown
in Figure 15, that is to say, the flanged locking sheath c is first formed with screw-
threads of uniform dimensions throughout; screw-threaded mandrels h, h¹ having plain
cylindrical portions 2, 3 are then screwed into the ends of the same, so as to leave a
short space between their extremities as shown; then, by subjecting the said mandrels
to end wise pressure and thus moving them towards each other until their ends h², h³
are in contact, the screw-threads of the sheath at c² are compressed to a different pitch
and so become locking threads, into which the screw-threaded ends of the stem 63 and
of the separate guide-pin 6, shown in Figure 11, can be firmly locked.
The guide-pin & is inserted through the back-plate a³ and screwed into the locking
sheath c after the said back-plate has been secured to the flange a² of the buffer-
case; this guide-pin is formed with a head 66, as in Figures 7 and 10, to facilitate
its insertion and removal.
Figure 12 is a plan, partly in horizontal section, showing a further modification
in which the collar c is simply placed on the neck of the buffer-stem, and has
turned in it an annular groove or gate c to receive the projecting part or tongue c³
of the locking sheath c.
I sometimes use a locking sheath c screw-threaded for only a portion of its length
and formed with a flange or collar c¹ as in Figure 13, which is also a plan, partly in
horizontal section; this sheath is screwed into the correct position on the buffer-stem,
without being locked thereon by locking threads, and is firmly locked or held in
position thereon by means of one of my patent lock-nuts i secured on a screw-threaded
portion of the stem, of smaller diameter than that on which the sheath c is
screwed.
Figure 14 is a rear elevation of the buffer-plunger illustrated in Figure 13,
showing the external shape of the locking sheath c and nut i.
Figures 16 and 17 show, in side elevation and plan, a double-handled or double-
ended box-spanner A having on one side thereof, as shown, an elongated boss or
projection A which is hollow and is of such internal form that it will correspond
with, and fit upon the rear end of the locking sheath c for the purpose of screwing
the said sheath upon the buffer-rod or stem.
To provide for preventing the buffer-rod and its head from turning round while
in use, I make the piston or plunger fluted or hexagonal or of any other shape than
round in transverse section, and I make the bush or the solid bearing surface within
the neck of the buffer-case of corresponding internal forin.
Figure 18 is a plan, partly in horizontal section, and
Figure 19 a transverse section, showing part of a buffer wherein the exterior of
the piston or plunger and the interior of the bush a³ are of octagonal shape in
transverse section.
Figures 20 and 21 are similar views showing part of a buffer wherein the exterior
of the piston or plunger 2 and the interior of the thickened neck a¹ of the buffer-case
are fluted.
In some instances, I modify the construction of my buffer as shown in Figures 22
and 23, which are respectively a plan, partly in horizontal section, and a transverse

page_text: section, that is to say: I make the flange or collar c¹ in two halves or parts which
are fitted into annular or circumferential grooves or gates 68, 69 in the neck 6 of the
buffer-stem and are enclosed and held firmly in position by a socket eo formed on
the locking sheath c, the said parts being retained or held together, to permit the
placing of the socket thereon, by straps or cords & which are placed around them and
slipped into annular or circumferential grooves or gates
Figure 24 is a horizontal section, and
Figure 25 a transverse section, illustrating my present improvements applied to a
buffer with a hollow plunger.
C
In this arrangement, the guide-pin is made with a screw-threaded extension 6,10
and is screwed into the buffer-head 61; the locking sheath c is screwed upon the said
extension and is formed with a flange e¹ which bears against the inner surface of
the head . The collar c is placed upon the guide-pin behind the locking
sheath c.
Figure 26 is a horizontal section, and
Figure 27 a transverse section, showing a buffer which has a hollow plungor, and
wherein a screw-stud mis securely fixed in the head 6', and the locking sheath c is
screwed upon the said stud, the guide-pin b, after the collar c', spring d and back-
plate as have been inserted in the case a, being passed through the hole in the said
back-plate and screwed tightly into the said sheath, which is provided with central
locking threads like those shown in Figure 11.
Figure 28 is a plan, partly in horizontal section, and
Figure 29 a transverse section, illustrating a buffer which has a hollow plunger
and wherein the screw-threaded buffer-stem 3 is rivetted in the head band has the
locking sheath c screwed thereon, and wherein the guide-pin 6 extends through the
back-plate a3 and through the buffer-beam of the vehicle to which the buffer is
attached, and is provided with a draw-spring n held thereon by means of locking
nuts o, o'.
с
In either of the modifications herein described the screw-threads of the locking
sheath may be made either of varying diameter or with a difference or interruption
of pitch for the purpose above specified.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I wish it understood
that I claim :-
First. The combination, with the screw-threaded buffer-stem, of an internally
screw-threaded sheath or tube formed solidly with, or separately from, the collar and
having the whole or a portion of its length fluted or made of oval, hexagonal or other
suitable shape in transverse section to fit a spanner for turning it, the screw-thread
therein being made either of uniform pitch throughout or with a difference or
interruption of pitch or with some of its threads of smaller diameter than the others,
all substantially as, and for the purposes, set forth.
Second. The combination, with the other parts of the buffer, of the guide-pin and
the internally screw-threaded sheath or tube formed therewith, substantially as, and
for the purpose, set forth.
Third. The combination, with an internally screw-threaded sheath or tube for
securing a buffer-rod in its case, of a separate guide-pin screwed into the said sheath
or tube, substantially as, and for the purpose, set forth.
Fourth. The herein described method of providing for preventing rotation of the
buffer-plunger whilst permitting endwise movement thereof in the box or case, by
making the said plunger of fluted, hexagonal or other suitable shape in transverse
section, and the bush or neck of the said box or case of corresponding internal form,
as set forth.
Fifth. The collar formed with the annular groove or gate in combination with the
locking sheath or tube having the annular projection or tongue fitting into the said
groove or gate, substantially as, and for the purpose, set forth.

page_text: Sixth. The combination of a locking nut with the screw-threaded sheath or tube,
substantially as described with reference to Figures 13 and 14 of the drawings for
the purpose specified.
Seventh. The combination, with the buffer-rod, of a collar made in two parts fitting
into grooves in the neck of the said buffer-rod and held together by a cord, strap or
the like, and by an envelope or socket formed with the locking sheath or tube,
substantially as, and for the purpose, set forth.
Eighth. The improved railway-buffer consisting of the parts constructed and
combined substantially as described with reference to Figures 1 and 2, or Figures 3
and 4, or Figures 5 and 6, or Figures 7, 8, 9 and 10 of the drawings, for the purposes
specified.
Ninth. The adaptation of my internally screw-threaded locking sheath or tube to a
buffer having a hollow plunger, substantially as described with reference to Figures 24
and 25 or Figures 26 and 27, or Figures 28 and 29 of the drawings.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.