Improvements in the Manufacture of Frame or Horn Plates for Rolling Stock.
Year: 1885

page_text: PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Frame or Horn Plates for
Rolling Stock.
. I, SAMSON Fox, of The Leeds Forge, New Wortley, Leeds, in the County of
York, Engineer and Ironmaster, do hereby declare the nature of this invention to
be as follows:-
In the manufacture of frame or horn plates for locomotives and other rolling
stock in the ordinary way a plain plate of metal is subjected to the action of
sundry machines for imparting to it by various operations the required shape and
afterwards supplementary parts are added to give additional strength where
needful as for instance upon and near the horns or recesses for the reception of the
axle boxes. Now according to my invention a frame or horn plate of the desired
form with flanges to give it the required strength and rigidity is made of a single
plate of metal by pressing or stamping.
A plate of metal such as mild steel which may be somewhat thinner than would
be necessary for the manufacture of a frame plate of ordinary kind is cut roughly
to approximately the required form but somewhat larger than the finished frame
is intended to be; then it is heated to a suitable temperature for being pressed or
stamped to the required shape with flange or flanges, and whilst hot it is subjected
to the action of suitable pressing or stamping apparatus whereby there is imparted
to it the desired shape, the edges being formed into a flange or flanges whereby
the necessary strength and rigidity is imparted to the whole, and care being taken
to prevent buckling or warping during the subsequent cooling and consequent
contraction. The edge or edges of the flange or flanges is or are subsequently
trimmed.
In carrying out my invention the requisite formation of the plate may be
produced by the use of male and female dies with apparatus to prevent warping
or buckling such as described in my Specification No 13020 bearing even date
herewith.

page_text: COMPLETE SPECIFICATION.
Improvements in the Manufacture of Frame or Horn Plates for
Rolling Stock.
I, SAMSON Fox, of the Leeds Forge, New Wortley, Leeds in the County of
York, Engineer and Ironmaster, 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 :-
In the manufacture of frame or horn-plates for locomotives and other rolling
stock in the ordinary way, a plain plate of metal is subjected to the action of
sundry machines for imparting to it by various operations the required shape and
afterwards supplementary parts are added to give additional strength where
needful as for instance,-upon and near the horns or recesses for the reception of
the axle boxes.
Now according to my invention, a frame or horn-plate of the desired form with
flange or flanges to give it the required strength and rigidity is made of a single
plate of metal by pressing or stamping.
A plate of metal such as mild steel which may be somewhat thinner than would
be necessary for the manufacture of a frame-plate of ordinary kind is cut roughly
to approximately the required form but somewhat larger than the finished frame
is intended to be, then it is heated to a suitable temperature for being pressed or
stamped to the required shape with flange or flanges, and whilst hot it is subjected
to the action of suitable pressing or stamping apparatus whereby there is imparted
to it the desired shape, the edges being formed into a flange or flanges whereby
the necessary strength and rigidity is imparted to the whole, and care being taken
to prevent buckling or warping during the subsequent cooling and consequent
contraction. The edge or edges of the flange or flanges is or are subsequently
trimmed..
In carrying out my invention the requisite formation of the plate may be
produced by the use of male and female dies with apparatus to prevent warping
or buckling such as described in my Provisional Specification Nº 13020. dated the
29th October 1885.
In the accompanying drawings Fig. 1. represents a plain plate cut approximately
to shape and ready to be heated and subjected to a pressing or stamping process as
above referred to. Fig. 2, shews in side elevation a frame or horn-plate so pro-
duced. Fig. 3, is an end elevation. Fig. 4, is a vertical section on the line a. a. and
Fig. 5. is a vertical section on the line b. b.-Fig. 6 represents a plain plate cut as
above referred to, for the formation of a single" horn-plåte. Fig. 7, is a side
elevation of the same after being heated and pressed or stamped and flanged, and
Fig. 8, is an end view of Fig. 7.
"
According to the invention described in the Specification above referred to,
N° 13020, A.D. 1885, I use a female die or matrix having an internal configuration
corresponding to the external form required to be imparted to the frame plate, and
in conjunction with the female die or matrix, I use a male die of corresponding
external form, but smaller to such an extent that when the male die is within the

page_text: female die or matrix there remains or remain between them a space or spaces of a
width corresponding to the thickness of plate to be operated upon, such space
extending entirely around the male die when the frame or horn-plate is to be made
with a single flange extending entirely around it.
By hydraulic or other power one or both of the dies is or are operated so that a
plate pressed between them has its edges turned up or flanged and passes through
the forming part of the female die on to blocks or supports able to move freely in
all directions parallel with the face of the flanged plate, to which end the blocks or
plates are arranged to rest upon anti-friction balls.
Above the flanged plate other blocks or plates are placed, and these are by the
male die or head of the press caused to bear against the flanged plate so that it is
held or squeezed between the blocks situate above and below it in such manner as
to admit of .contraction during cooling, and to prevent warping or buckling, to
which end antifriction balls are introduced also between the plates of each pair of
upper blocks or pressers.
As will be evident the forms of the dies will depend upon the form, proportions
and dimensions of the frame or horn-plate to be produced.
Having now particularly described and ascertained the nature of my inven-
tion and in what manner the same is to be performed, I declare that what
I claim is
The manufacture of flanged frame or horn-plates for rolling stock each made
with flange or flanges in one piece of metal in the manner described.
Dated this 22nd day of July 1886.
Witness,
THO E. CRAVEN, C.E., Fel. Inst. P.A.,
24, Victoria Chambers, Leeds.
SAMSON FOX.