IMPROVEMENTS IN APPARATUS FOR THE MANUFACTURE OF AXLE BOXES FOR WHEELED VEHICLES
Year: 1878

page_text: LETTERS PATENT to William Robert Lake, of the Firm of Haseltine, Lake,
& Co., Patent Agents, Southampton Buildings, London, for the Invention of
"IMPROVEMENTS IN APPARATUS FOR THE MANUFACTURE OF AXLE BOXES
FOR WHEELED VEHICLES." A communication from abroad by Gilbert
Augustus Morse, of South Egremont, Massachusetts, United States of America,
Mechanic
Sealed the 16th July 1878, and dated the 20th February 1878.
COMPLETE SPECIFICATION filed by the said William Robert Lake at
the Office of the Commissioners of Patents on the 20th February 1878.
WILLIAM ROBERT LAKE, of the Firm of Haseltine, Lake, & Co., Patent
Agents, Southampton Buildings, London. "IMPROVEMENTS IN APPARATUS FOR
THE MANUFACTURE OF AXLE BOXES FOR WHEELED VEHICLES." A communi-
cation from abroad by Gilbert Augustus Morse, of South Egremont, Massachusetts,
United States of America, Mechanic.
Figure 1 and 2 refer to dies intended to be used in conjunction, and Figure 3
refers to dies embodying modifications.
Figure 1 is a view of the face of one of the two corresponding die halves which
form the first set, showing the punch or plunger entered to its full depth, with a
small part of the plunger in central longitudinal section.
Figure 2 is a view of the face of one of the two corresponding die halves which
form the second set, showing the plunger entered to the full depth.
Figure 3 is a face view of one of two corresponding die halves which make up a
set, embodying modifications.
The plunger is shown as entered to about the depth necessary to form an axle
box forging. These are partible (lengthwise) dies, and punches or plungers for
forging and forming axle boxes for vehicles from wrought iron or steel tubing,
notably from gas and water pipe. These axle boxes are round or cylindrical on the

page_text: outside and inside, and the matrices of the dies and the outside of the punches are
of course similarly rounded.
The dies and punches are worked by appropriate machinery which will close the
dies face to face at the proper time and then separate them, and which will cause
the punch or plunger to advance and retreat at the proper time.
First. As to the set of dies and the punch shown in Figure 1, the letter a denotes
one of two duplicate or corresponding die halves with a slight taper in the matrix
from a² to a¹ to similarly taper the axle box. From the point a² to the point a³ the
matrix flares or expands; in this flare are the recesses b to form the nibs or small
wings which generally appear on the outsides of axle boxes. The plunger c when
fully entered passes through the length of the die and out at the opposite end, the
shoulder a¹ preventing the stock from doing the same. That part of the punch
which is within the flared mouth of the matrix rises or expands by two swells c¹, c²,
till it passes out of the die, and where these swells end the punch bears a flange e³
forming a cup, which catches the end of the stock pipe and prevents its escape from
the proper action of the punch.
Second. As to the dies and punch shown in Figure 2, the letter & denotes one of
the corresponding die halves. From d² to d¹ the matrix tapers, substantially the
same as in the die half shown in Figure 1; from d² to d³ it flares or expands
regularly, and at this point contains the nib-forming recesses e; from d³ to d
the matrix is regular; above d' the matrix contains the "surplus recess "f
(i.c., a recess for surplus stock). The punch g tapers from g² to g'; at g2 is a
small shoulder; from 2 to g³ the punch is regular, but somewhat larger in
diameter than below the shoulder g; at g3 is another shoulder; from g³ to g¹
is regular but larger in diameter than below shoulder g3; at g' is another shoulder.
In operating these sets of dies and punches the stock is first grasped and com-
pressed by the dies coming together face to face; the punch then advances and does
its work; the punch then retreats, the dies open, and the forging is taken out.
These two sets of dies and punches are intended to be used in conjunction, the stock
being first submitted to the dies and punch, shown and described in Figure 1, and
then to the dies and punch shown in Figure 2. The second set alone will with
careful manipulation produce the desired forging without the use of the first set,
but not with the certainty and ease attained by using both sets in con-
junction.
Third. As to the dies and punch shown in Figure 3, the letter h denotes one of two
corresponding die halves which make up the set. The matrix thereof is tapered
from 2 to h¹; from h² to 13 it flares or expands, and here contains the nib-forming
recesses i; from h³ to hit is regular, and hero contains the "surplus recess "j; at h
is a shoulder; from ht to h³ is a stock holder or "stock support." The punch k may
go entirely through the dies or be shorter, as shown; it has an upsetting shoulder at
, and is regular from k to k; the diameter above k¹ is somewhat less than the
diameter of the "stock support" h*, h³.
I claim as my Invention the three several sets of dies and punches for forming
axle boxes, herein-before described.
In witness whereof, I, the said William Robert Lake, have hereunto set my
hand and seal, this Twentieth day of February, in the year of our Lord One
thousand eight hundred and seventy-eight.