Improvements in Draw Bars for Reducing Strains on the Under Framing of Railway Vehicles.
Year: 1892

page_text: iate of Application, 1st Jan., 1892
Complete Specification Left, 3rd May, 1892-Accepted, 18th June, 1892
PROVISIONAL SPECIFICATION.
Improvements in Draw Bars for Reducing Strains on the Under
Framing of Railway Vehicles.
JOHN ROBERT RICHARDSON 10 Steele's Cottages, Boothen, Stoke-on-Trent,
Staffs. Railway Wagon Builder, do hereby declare the nature of this invention to
be as follows:-
This my invention has reference to improvements in draw-bars for use in
connection with the under frames of railway vehicles, and the object of my said
invention is the reduction of strains on the under framing of such vehicles when
in use.
To carry my said invention into practice I attach by any suitable means to the
inside of each of the middle bars of the under framing of such vehicles about mid
way of their length a hollow metal cylinder of suitable shape and size, within each
cylinder I fit or fix a solid india-rubber block or india-rubber rings to within a
short distance or space of the inner end of such cylinders, within which space I
place one end of a suitably shaped metal casting so as to abut or bear against the
aforesaid india-rubber block or rings, in the hollow front part of the said casting
place a block or rings of india rubber and retain the same in place by means of a
metallic plate or cover, the said casting on the inner end of each draw bar being
connected together by two or more metallic bars, rods or the like, which draw bars
pass through the head stocks, middle bars, rubber cushions and castings being con-
nected by cotters or other suitable means to the metallic straps or bars which
embrace the laminated springs, the curved part of which springs bear or rest
against the middle longitudinal bar of the under-framing, the ends of the laminated
springs bearing against the inner ends of the buffer rods, by this arrangement when
a sudden force or pressure is applied to or comes against the draw bars or buffers
of such vehicles, such force or strain will be more effectually reduced on the under-
framing of such vehicles.
Dated this 30th day of Degusta 1901
JOHN NEWTON,
Longport, Staffs., Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in Draw Bars for Reducing Strains on the Under
Framing of Railway Vehicles.
JOHN ROBERT RICHARDSON, 10 Steele's Cottages, Boothen, Stoke-on-Trent,
Staffs. 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 my invention has reference to improvements in draw-bars for use in
connection with the under frames of railway vehicles fitted with laminated springs,
and the object of my said invention is the reduction of strains on such vehicles
when in use.
To carry my said invention into practice I attach by any suitable means to the
inside of each of the middle bars of the underframing of such vehicles about mid-
way of their length a hollow metal cylinder of suitable shape and size, within each
cylinder I fit or fix a solid india-rubber block or india-rubber discs to within a short
listance or space of the inner end of such cylinders, within which space I place one
end of a suitably shaped metal ram so as to abut or bear against the aforesaid india
Pindl

page_text: rubber block or rings, in the hollow front part of the said casting I place a block or
rings of india-rubber and retain the same in place by means of a metallic plate or
cover, the said castings on the inner end of each draw bar being connected together
by two or more metallic bars rods or the like, a portion of which draw bars pass
through the said middle bars, rubber cushions, and castings, which are connected
by cotters or other suitable means to the metallic buckles or straps which embrace
the laminated metal plates forming the springs, the inner ends of which buckles bear
or rest against the spring block of the under framing, the ends of the springs
pressing or bearing against the inuer ends of the buffer rods, by this arrangement
it will be understood that when a sudden force or pressure is applied to or comes
against the draw bars or buffers of such vehicles such strains will be effectually
equalized and lessened.
In order that my said invention may be more readily understood and described
in detail I have hereunto annexed two sheets of drawings on which letters of
reference are marked on corresponding parts on all the figures alike.
Figure 1 is a plan view of one way of arranging my invention in connection with
the under framing of railway wagons or similar vehicles, the end and longitudinal
bars being omitted for reasons hereinafter mentioned.
Figure 2 is an enlarged front elevation of wrought iron ram and cast iron
cylinder.
Figure 3 is a sectional elevation of a cast iron cylinder, wrought iron hollow ram,
ram washer, india-rubber rings, and shewing in elevation the cotter, portion of
drawbar, and a portion of one cradle-bar.
Figure 4 is an enlarged plan view of a cast iron cylinder.
Figure 5 is an enlarged plan view of a wrought iron hollow rain.
Figure 6 is a plan view of another way of arranging my invention in connection
with the underframing of railway wagons or similar vehicles, the laminated springs,
end and middle longitudinal bars being omitted.
Figure 7 is a side elevation shewing two wrought iron cradle bars, the wrought
iron rams, and a portion of the drawbars shewn in plan at Figure 6.
Figure 8 is a plan view shewing position of tension rods which connect the hollow
rams shewn at Figures 6 and 7.
Figure 9 is an end elevation of one form of hollow ram, with which two tension
rods or bars are used.
Figure 10 is an end elevation of an alternative form of ram, with which four
tension rods are used..
In these figures u, a², represent the soles, b, 2 the headstocks, c, c³ middle bars,
d, a, d³ and a diagonals, and e the spring block of the underframing of a wagon,
the end and middle longitudinal bars being omitted for the purpose of enabling the
arrangement of my said invention as applied to such underframing to be more
easily seen.
On reference to the drawings it will be seen that suitably shaped metallic
cylinders having one of their ends partially closed are secured against the inside of
each of the middle bars c, c² by means of metallic rods y, g³, and g* extending
from the said middle bars c, e² to the draw bar plates,, within one of the said
cylinders have shewn three india rubber discs i, 2, and 3 which are a little
less in diameter than the inside of the cylinder to allow such discs to expand, con-
tiguous to the outer rubber disc 1 place the partially closed end of a slackly
fitting and suitably shaped hollow metallic ram j, within which ram I have shewn
four india-rubber discs k, k, k, and 4 which are less in diameter than the inside of
the ram to permit such discs to expand as herein before stated, to retain the said
flexible discs within the ram j, I place against the outer flexible disc k a metallic
plate or washer 1 of suitable shape and size the several parts being connected on the
inner end of each draw bar by two or more metallic bars, rods or the like, a portion

page_text: of each draw bar passing through holes or apertures formed through the said middle
bars, rubber discs and castings or forgings, and which are connected by cotters m
to the metallic draw bars and the metallic buckles or straps n which embrace the
laminated metal plates forming the springs, the outer ends of the straps or buckles n
bearing against one side of the metallic washers l, the inner ends of the said straps n
resting in suitably shaped recesses or apertures formed in the sides of the spring
block of the underframing of such vehicles, the ends of the springs bearing
against the inner ends of the buffer rods, by this arrangement of apparatus and
framing it will be understood that when a sudden force or pressure is applied to or
comes against the buffers or draw bars of such vehicles the strain on such will be
effectually equalised and lessened. Four suitably shaped metallic cradle bars
are used as shewn at Figure 1 for supporting the laminated springs p which can
slide between them, and for connecting the cast cylinders, 2.
Wrought iron or steel rods r, 2 of suitable shape and size connect the hollow
metallic rams; and take the greater part of all strains from off the middle
bars C, c³.
I prefer to use the combined apparatus or appliances as herein before described
in all wagons, but the wrought iron hollow rains j can be used without the cast
metal cylinders f, as shewn at Figure 6 on Sheet 2 of the drawings hereunto
annexed, and it will be seen on reference to the drawings that the end of the
metallic buckle or strap n is kept against the metallic plate or washer by reason
of the cotter m passing through the said buckle n and the inner end or portion of
the draw bar 8.
I would have it understood that instead of three or more india-rubber or flexible
discs as shewn on the drawings I may beneficially use flexible blocks, and further
that I am aware that cast iron cylinders similar to those marked, on the
drawings have been used with wagons having "dead buffers," but not so far as I
am aware with wagons having laminated springs.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is-
1st. The combination with the draw-bars and underframings of railway vehicles
having laminated springs of metallic cylinders f, f, metallic rams j, flexible
packing i,,, k, k³, and k³, metallic plate or washer 4, metallic cotters or the
like m, two or more metallic tension rods such as r, ², metallic cradle bars o,
metallic tie-rods g², g and g in the manner and for the purpose of lessening and
equalising strains on the underframing of railway vehicles as herein substantially
described set forth and fully illustrated on the drawings hereunto annexed.
ولا
2nd. The combination with the draw bars and underframing of railway vehicles
having laminated springs of metallic rams j, flexible packing, ², i³, k, k³, and k³,
metallic plate or washer /, metallic cotters m or the like, two or more metallic
ension rods such as r,, metallic cradle bars o, and metallic tie-rods 9, g², g³
nd g in the manner and for the purpose of lessening and equalizing the strains on
he underframing of railway vehicles as herein substantially described set forth and
ully illustrated on the drawings hereunto annexed.
Dated this 30th day of April 1892
JOHN NEWTON,
Longport, Staffs., Agent for Applicant.