Tramway Vehicles and the like Purposes.
Year: 1885

page_text: Tramway Vehicles and the like Purposes.
We JOSEPH TRIPPETT, Manager THOMAS SEARLS, and HENRY SEARLS, Steel
Manufacturers all of Cannon Steel Works, Carlisle Street, Sheffield in the County
of York, do hereby declare the nature of our said Invention for "IMPROVEMENTS
IN THE CONSTRUCTION OF BUFFERS FOR RAILWAY AND TRAMWAY VEHICLES AND
THE LIKE PURPOSES" to be as follows:
This Invention is a modification of our patent for "Improvements in the
construction of Buffers for railway and tramway vehicles," dated the 3rd July
1884, and numbered 9713, and consists in constructing a Buffer or Buffers with
one box, one plunger, and one spring instead of with two or more boxes, plungers
and springs, as described and set forth in the Invention last referred to, the objects
of the present Invention are also similar to those described in the Patent last
referred to and are threefold namely.
Firstly. To construct a Buffer or Buffers which shall combine strength with
lightness and simplicity of construction.
Secondly. To construct a Buffer or Buffers which will be better adapted than
Buffers ordinarily in use, to sustain the varying strains to which they are liable.
Thirdly. The construction of a Buffer or Buffers, by which the machine labour
such as turning, boring, and drilling may be considerably reduced, if not entirely
dispensed with, and the several parts of which do not require skilled labour in
fitting together ready for use.
We effect this object substantially as described and set forth in our previous
patent (N° 971384) by constructing the buffer box or case, the head and plunger
and other parts hereinafter described in Cast Steel, and also by the means employed
in fitting the several parts of the buffer together.
The manner in which the buffer herein described is manufactured and put
together is as follows.
The box or case is moulded from a metallic pattern, which has been bored out
and otherwise prepared so as to draw easily out of the sand, and leave its own
core.
The holes by which the base is fitted to the frame of the vehicle may also
be cast. The plunger bolt having been previously screwed for the nut or nuts and
for the washer, and likewise having been notched or otherwise formed at the
plunger end, is placed in the sand, and the head and plunger is cast on to or
around it, the bolt may thus be firmly secured to the plunger, and the head,
without any other mode of fastening being required.

page_text: The washer and cover plate to the base may likewise be made of Cast Steel, the
springs which may be either helical volute or other convenient form may be made
in steel suitably tempered, or India rubber springs may be used.
With the exception of the Bolt nuts and spring, which may be made of wrought
Cast steel, all the parts herein described may be made in unwrought Cast steel,
and when the parts so cast have been fettled and annealed they may be put together
as follows.
The head with the plunger and bolt are first inserted into the plunger guide or
socket, the washer, which serves to increase the bearing surface between the plunger
end and the spring has two or more holes drilled or otherwise formed to receive a
spanner or wrench, and is then slipped over the bolt and screwed by a specially
formed spanner or wrench on to the screwed portion of the bolt next the plunger
end against which it is tightly fixed, the spring is then passed over the bolt, the,
cover plate is then placed in the opening in the base, the nut is then screwed on to
the bolt, and may be retained in position by a split pin, check nut or other
equivalent means, the Buffer is then ready for use.
When bolted to the buffer plank of an Engine, Wagon, or other vehicle, suitable
holes would be bored or otherwise formed in the buffer plank, in which, or through
which the nuts and bolts would pass when the buffers are in compression.
A ribbed foot plate may be either cast on the box or be cast separately and
afterwards fixed to the box by screws or other equivalent means.
Dated thin and
ST. 100K
R. HEBER RADFORD,
Agent for the Applicants.
Improvements in the Construction of Buffers for Railway and
Tramway Vehicles and the like Purposes.
We JOSEPH TRIPPETT, Manager, THOMAS SEARLS, and HENRY SEARLS, Steel
Manufacturers, all of Cannon Steel Works, Carlisle Street, Sheffield, in the County
of York, do hereby declare the nature of our said Invention for IMPROVEMENTS
IN THE CONSTRUCTION OF BUFFERS FOR RAILWAY AND TRAMWAY VEHICLES, AND
THE LIKE PURPOSES and in what manner the same is to be performed, to be:
particularly described and ascertained, in and by the following statement:-
This Invention is a modification of our patent for "Improvements in the
construction of Buffers for railway and tramway vehicles" dated the 3rd July
1884, and numbered 9713, and consists in constructing a Buffer or Buffers with
one box, one plunger, and one spring, instead of with two or more boxes, plungers

page_text: and springs, as described and set forth in the Invention last referred to, the objects
of the present Invention are also similar to those described in the patent last
referred to and are threefold namely:—
Firstly. To construct a Buffer or Buffers which shall combine strength with
lightness, and simplicity of construction.
Secondly. To construct a Buffer or Buffers which will be better adapted than
Buffers ordinarily in use to sustain the varying strains to which they are liable.
Thirdly. The construction of a Buffer or Buffers by which the machine labor
such as turning boring and drilling may be considerably reduced, if not entirely
dispensed with, and the several parts of which do not require skilled labor in fitting
together ready for use.
We effect this object substantially as described and set forth in our previous
patent (N° 97138%) by constructing the Buffer box or case, the head and plunger
and other parts hereinafter described in Cast Steel, and also by the means employed
in fitting the several parts of the Buffer together.
The manner in which the Buffer herein described, is manufactured and put
together is as follows:-
The box or case is moulded from a metallic pattern, which has been bored out
and otherwise prepared so as to draw easily out of the sand and leave its own core.
The holes by which the base is fitted to the frame of the vehicle may also be cast,
The plunger bolt having been previously screwed for the nut or nuts, and for the
washer, and likewise having been notched or otherwise formed at the plunger end,
is placed in the sand, and the head and plunger is cast on to, or, around it, the bolt
may thus be firmly secured to the plunger and the head without any other mode
of fastening being required.
The washer and cover plate to the base may likewise be made of Cast Steel, the
springs which may be either helical, volute or other convenient form may be made
in Steel suitably tempered, or India rubber springs may be used.
With the
exception of the bolt nuts and spring which may be made of wrought Cast Steel,
all the parts herein described may be made in unwrought cast steel and when the
parts so cast have been fettled and annealed they may be put together as follows.
The head with the plunger and bolt are first inserted into the plunger guide or
socket, the washer which serves to increase the bearing surface between the plunger
end and the spring, has two or more holes drilled or otherwise formed to receive a
spanner or wrench is then slipped over the bolt and screwed by a specially formed
spanner or wrench on to the screwed portion of the bolt next the plunger end
against which it is tightly fixed, the spring is then passed over the bolt, the cover
plate is then placed in the opening in the base, the nut is then screwed on to the
bolt, and may be retained in position by a split pin, check nut or other equivalent
means, the buffer is then ready for use."
When bolted to the buffer plank of an Engine, Wagon, or other vehicle, suitable
holes would be bored or otherwise formed in the buffer plank, in which, or through
which the nuts and bolts would pass when the buffers are in compression.
A ribbed foot plate may be either cast on the box, or be cast separately, and
afterwards fixed to the box by screws or other equivalent means.
As a modification of the means herein described for casting the plunger bolt in
the plunger, the plunger may be cast without the bolt and in lieu of the long bolt
a short stud with a washer may be screwed into the end of the plunger.
The stud would be screwed and the end of the plunger would be bored and
tapped, or a hole may be cast approximately to the diameter required and after-
wards drilled out to the finished size, the plunger and head may likewise be cored
out to reduce the weight.
The washer which may be of cast steel would be first screwed on the stud and
after the plunger had been inserted in the buffer box the stud with the washer on
it would be screwed into position and may be prevented working loose after it had
been tightened up by means of a small set screw being inserted at an angle
through the washer, plunger, and the bolt. The stud'in the plunger may be formed

page_text: with a square or a canted end to fit a key or spanner by which it may be screwed
tightly into the plunger.
When this has been accomplished the washer serves both as a means of securing
the plunger inside the buffer box and likewise as a means of increasing the bearing
surface between the plunger end and the spring.
The nature of our Invention and of the modification herein last described may
be. better understood on reference to the accompanying sheet of drawings in which
Fig. 1. Is a plan of the buffer ready for use.
"
2. Is a front Elevation of the same.
3. Is a section and
"
>>
4. Is an elevation looking on the base with the cover plate and spring
removed.
Fig. 5. Is a section of a buffer as described in the modification.
Fig. 6. Is a section of the same on the line A. B.
The same letters refer to similar parts throughout the several views.
a. is the buffer box. bis the plunger. c is the head. d. d. are fillets or ribs
cast on the plunger. c. is the spring. f, is the bolt or stud which may be cast or
screwed in the plunger. g is a washer which is screwed or otherwise fastened on
to the bolt or stud f. h is a cover fitted into a recess in the base plate which may
have a bolt hole or holes cast or otherwise formed therein. i, (Fig. 5,) is a
projection or boss cast on the centre of the inside of the cover plate and against
which the end of the plunger stud would be driven when the plunger is forced
into the box and the spring is in compression. j, is the set screw for securing the
washer g and stud f
Having now particularly described and ascertained the nature of our Inven-
tion and in what manner the same is to be performed, we declare that what
we claim is :-
Improvements in the construction of buffers, for railway and tramway vehicles
by combining with the use of Cast Steel for the buffer box the plunger the head
and other parts, the particular arrangement or arrangements by which the several
parts are fitted, put together and secured so as to work in the mannor substantially
as herein described and set forth.