Improvements. in Buffing and Draw Gear for Railway Wagons and Carriages.
Year: 1893

page_text: Date of Application, 12th, Apr., 1893
Complete Specification Left, 15th Sept., 1893-Accepted, 28th Oct., 1893.
PROVISIONAL SPECIFICATION. ·
Improvements. in Buffing and Draw Gear for Railway Wagons
and Carriages.
We, GEORGE EARL CHURCH, Civil Engineer, of Dashwood House, London E.C.
and GEORGE WATSON ETTENGER, Mechanical Engineer, of 12 Church Street,
Barrow-in-Furness, England do hereby declare the nature of this invention to be as
follows:-
This invention relates to an improved construction of that description of buffing
and draw gear for railway wagons and carriages, in which a draft or buffing bar, or
a combined draft and buffing bar has its inner part passing through and bearing
against two follower plates between which is a helical draft or buffing spring, and
which can slide on two parallel horizontal tubular pillars, secured to the under-
framing such pillars being provided with abutments against which the follower
plates bear, so that when a pull is put upon the draft bar, the inner follower plate
is thereby drawn outwards upon the pillars compressing the spring against the
outer follower plate, which bears against the outer abutments on the pillars.
When on the other hand the bar acts as a buffing bar it forces the outer follower
plate towards the inner plate, which bears against the inner abutments on the
pillars, the spring being thus compressed in an inward direction.
According to our present improvements on this construction instead of letting
the tubular pillars simply butt at the one end against the head stock and at the
other end against the transom we provide socket plates secured against the head
stock and transom which socket plates extend across from the one guide pillar to
the other, and receive the ends of these in correspondingly formed sockets, which
may also be made to receive the ends of the sleeves fitted upon the pillars which
form the abutments on these. The tie bolts that pass through the tubular pillars
and secure them to the head stock and transom also pass through correspon ling
holes in the socket plates, and thus secure the whole structure rigidly together.
The follower plates, instead of being made with half round notches fitting
partly round the guide pillars, as heretofore proposed, are made to fit with circular.
holes over the parts of the pillars between the stops, thus affording a more
secure guidance when. in-action and preventing possible displacement of the
parts:
'
When the apparatus is applied only as a draw bar, or only as a buffer, the inner
or outer-stop sleeves or abutments, as the case may be, can be dispensed with...
According to another improvement, instead of constructing the guide pillars of a
tubular form we construct them of two bars of section, one on each side of the
tie bolt, the follower plate being made with rectangular holes for fitting over both
the bars. The abutments are in this case formed by rivetting or otherwise fixing
plates across the flanges of the bars at each end, so that the projecting end surfaces.
of these plates serve as the abutments for the follower plates. The sockets in the
socket plates are in this case made of a corresponding rectangular form, to receive
the ends of the pillar bars with their connecting plates...
The above described improved construction is applicable not only to all known
constructions of combined buffing and draw gear, but also to simple draw hooks.
whether with chains or with screw couplings, and to ordinary buffing gear.
When applying the invention to draw gear of carriages or wagons in which
ordinary laminated draught, and buffing springs are used, either alone or in
combination with the helical springs-we arrange two tubular guide pillars on each
side of the draw bar instead of only one, the pillars being such a distance apart as.
to allow the laminated: buffer spring. to pass between them. The draw bar is

page_text: formed with a suitable eye for the reception of the middle of this spring and is also
connected with the follower plates as previously described, these plates being formed
with four holes to slide upon the four pillars.
The socket plates are also formed with sockets to receive the ends of the four
pillars.
"
Dated this 10th do of 1.1002
COMPLETE SPECIFICATION.
Improvements in Buffing and Draw Gear for Railway Wagons
and Carriages.
We, GEORGE EARL CHURCH, Civil Engineer, of Dashwood House, London, E.C.
and GEORGE WATSON ETTENGER, Mechanical Engineer of 12 Church Street,
Barrow-in-Furness, England, 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 relates to an improved construction of that description of buffing
and draw gear for railway wagons and carriages in which a draft or buffing bar, or
a combined draft and buffing bar has its inner part passing through and bearing
against two follower plates between which is a helical draft or buffing spring, and
which can slide on two parallel horizontal tubular pillars, secured to the under-
framing, such pillars being provided with abutments against which the follower
plates bear, so that when a pull is put upon the draft bar, the inner follower plate
is thereby drawn outwards upon the pillars compressing the spring against the
outer follower plate, which bears against the outer abutments on the pillars.
When on the other hand the bar acts as a buffing bar it forces the outer follower
plate towards the inner plate, which bears against the inner abutments on the
pillars, the spring being thus compressed in an inward direction.
According to our present improvements on this construction, instead of letting
the tubular pillars simply butt at the one end against the headstock and at the
other end against the transom, we provide socket plates secured against the head-
stock and transom which socket plates extend across from the one guide pillar to
the other and receive the ends of these in correspondingly formed sockets, which
may also be made to receive the ends of the sleeves fitted upon the pillars which
form the abutments on these. The tie bolts that pass through the tubular pillars
and secure them to the headstock and transom also pass through corresponding
holes in the socket plates and thus secure the whole structure rigidly together:
The follower plates instead of being made with half round notches fitting partly
round the guide pillars, as heretofore proposed, are made to fit with circular holes
over the parts of the pillars between the stops, thus affording a more secure guidance
when in action and preventing possible displacement of the parts.
When the apparatus is applied only as a draw bar, or only as a buffer, the inner
or outer stop sleeves or abutments, as the case may be, can be dispensed with.
According to another improvement, instead of constructing the guide pillars of a
tubular form we construct them of two bars of section, one on each side of
the tie bolt, the follower plate being made with rectangular holes for fitting over
both the bars. The abutments are in this case formed by rivetting or otherwise
fixing plates across the flanges of the bars at each end so that the projecting end
surfaces of these plates serve as the abutments for the follower plates. The sockets
in the socket plates are in this case made of a corresponding rectangular form, to
receive the ends of the pillar bars with their connecting plates.
The above described improved construction is applicable not only to all known
constructions of combined buffing and draw gear, but also to simple draw hooks
whether with chains or with screw couplings and to ordinary, buffing gear.

page_text: When applying the invention to draw gear of carriages or wagons in which
ordinary laminated draught and buffing springs are used, either alone or in
combination with the helical springs we arrange two tubular guide pillars on each
side of the draw bar instead of only one, the pillars being such a distance apart as
to allow the laminated buffer spring to pass between them. The draw bar is
formed with a suitable eye for the reception of the middle of this spring and is
also connected with the follower plates as previously described, these plates being
formed with four holes to slide upon the four pillars.
The socket plates are also formed with sockets to receive the ends of the four
pillars.
Our above described improved construction of such buffing and draw gear as
applied to a central combined buffer and draw bar is shewn at Figs. 1 to 8 of the
accompanying drawings.
In the arrangement shewn in side view and part sectional plan at Figs. 1 and
the combined buffer and draw bar K (which may be of any of the various known
constructions) passes through the headstock B and through two follower plates L L'
which slide with eyes over the tubular guide pillars M that extend from the head-
stock B to the transom N, abutment sleeves OO being fitted on each end of the
pillar guides, for the plates L'L' to butt against the plates being kept against
their abutments by the helical springs P mounted on the bar K between the two
plates. The bar K being made to bear with a shoulder against the outer plate Ļ
and with a nut against the inner plate L', it will be seen that when the bar is
forced inwards by a buffing action, it will move the plate L inwards upon the
pillars and will compress the springs against the inner plate L', which will bear
against its abutments, while when the bar K is drawn outwards by a drawing
action, it will draw the plate L' outwards compressing the springs against the
plate L.
The guide pillars M and abutments O, instead of abutting directly against the
headstock and transome as heretofore, are made to fit with their ends in sockets
formed in socket plate Q fitting against the headstock and transome and extending
across from the one guide pillar to the other, so as to securely hold these in
position, such socket plates being formed with holes through which pass the tie
bolts R that secure the guide pillars and socket plates firmly to the headstock and
transome.
Also by forming the follower plates L L' with circular holes fitting on the guide
pillars instead of only with semicircular notches fitting half round the pillars, as
heretofore, a much securer guiding of the draw and buffing bar K is insured, and
any accidental displacement of the follower plates and springs, such as occurs with
the old construction is entirely prevented.
When the apparatus is applied only as a draw bar or only as a buffer, the inner
or outer abutment sleeves O, as the case may be, may be dispensed with. Fig. 3
shews a side view of the apparatus applied as a draw hook the inner abutment
sleeves being dispensed with.
Figs. 4. 5 and 6 shew respectively a side view a part sectional plan and a part
cross section of a modified construction in which the tubular guide pillars are
replaced by two bars M² M' of a trough section, as shewn in the cross section at
Fig. 6, between which the tie bolt R passes, and which are connected together at
each end by plates M² M' rivetted or otherwise secured thereto as shewn, the ends
of which plates serve as the abutments for the follower plates L L' these being
formed with rectangular holes for fitting over the two bars M' as shewn at Fig. 6.
The sockets of the plates Q are also formed rectangular to receive the ends of the
bars M¹.
Figs. 7 and 8 show respectively a part plan and a cross section of an arrangement
for adapting the above described apparatus to the ordinary arrangement with central
draw hook and side buffers in which the laminated buffer spring connected to the
draw bar is employed.
In this case there are two pairs of guide pillars M between which the laminated

page_text: buffer springis passes this being connected to a loop K' of the draw bar-K. The
follower plates L are in this case made with 4 holes to' slide on the four,columns
and the socket plates Q'are made with 4 sockets to receive the pillars M'and their
abutment sleeves O. Helical springs P are as before provided behind the follower
plate L..
(
..Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed we declare that what we
claim is
.
1. In buffing and draw bar apparatus, providing the tubular guide pillars and
their abutment sleeves with socket plates for the ends to bear against which socket
plates have holes through which pass the tie bolts that secure the guide pillars to
the headstock and transome also arranging the follower plates to slide with
circular holes upon the guide pillars substantially as described.
2. In buffing and draw bar apparatus of the kind herein referred to constructing
the guide pillars of two bars of a trough shaped section connected together at each
end by transverse plates that serve also as abutments to the follower plates, which
also embrace the said bars substantially as described.
3. Adapting buffing apparatus such as is herein referred to for use with the
ordinary laminated buffer springs by providing four guide pillars for the follower
plate of the draw bar to work on, the buffer spring being arranged to pass between
the two pairs of pillars.
4. Buffing and draw bar apparatus combined and arranged as herein described
with reference to the accompanying drawings.
Dated this 15th day of September 1893.
ABEL & IMRAY,
Agents for the Applicants.