Improvements in the Manufacture of Wrought Iron or Steel Boxes or Bushes for Axletrees for Wheeled Vehicles.
Year: 1886

page_text: Date of Application, 13th Dec., 1886
Complete Left, 13th Sept., 1887
Complete Accepted, 1st Nov., 1887
Improvements in the Manufacture of Wrought Iron or Steel Boxes
or Bushes for Axletrees for Wheeled Vehicles.
I, JOHN GEORGE HARRISON No. 11, Noel Road, Edgbaston Birmingham Manager
of Works do hereby declare the nature of my invention for IMPROVEMENTS IN THE
MANUFACTURE OF WROUGHT IRON OR STEEL BOXES OR BUSHES FOR AXLETREES FOR
WHEELED VEHICLES to be as follows:-
The object of my invention is to make wrought iron or steel boxes or bushes
for axletrees for wheeled vehicles, of one piece of metal only, instead of two or more
as is usualy the case, and for this purpose I take a flat plate of iron or steel of a width
and thickness to suit my purpose, but longer than I propose making the box or bush.
Having heated the plate described above to a proper heat for bending, I, by means
of the ordinary appliances, bend the plate and cause it to take the form or shape of a
tube, or pipe. I then reheat the tube, or pipe, to a welding heat, & place it while at
this heat between suitable tools worked in a steam hammer, or drop stamp, for about
two thirds of the full length of the tube or pipe, and so weld the edges of the plate
together, and make a cylindrical tube solid and complete, for that proportion of its
length. For my next process I provide myself with a pair of steel dies, which I work
in a drop stamp by preference, but they may be used either in a steain hammer, tilt
hammer, rolls, squeezers, or similiar contrivances. The one which I will call the lower
die being sunk, cut, or bored out from its face down-ward to receive the welded part
of the tube or pipe (as hereinbefore described) freely and easily. In addition to this
cylindrical bore just set forth, I bore out the mouth of said cylindrical bore for a short
distance, so that the die has then a larger bore at the face and for a short distance
down than the size of the welded tube or pipe. On one or more sides of the larger
bore in the lower die I cut a slot, groove, or notch which runs down-ward from the face
of the die to the point of junction of the larger and smaller bores. The top or upper
die is bored out to correspond in its greatest inside diameter with the inside diamater
of the larger bore in the lower die, and in the centre of the top die I form a round
plunging piece, equal in diameter to the size I wish to finish the axletree box or bush

page_text: internally. The plunging piece just described stands down considerably below the
lower face of the top die, and when the meeting faces of both dies are together is well
within the smaller bore of the lower die.
Having my dies prepared and set in a drop stamp, I heat the unwelded end
of the tube or pipe to a proper heat for welding, and place it in a perpendicular
position within and between the dies, the part previously welded being within
the smaller bore of the die, so that the part now welding hot is opposite the enlarged
part of the lower die, and standing out and above it. By bringing the drop stamp
to work the dies are brought together, and force the welding metal to take their
form, and by displacing the metal lengthwise thicken it up to cause it to fill in the
larger bore and the slots, grooves, or notches cut in the larger bore of the lower
die and at the same time fill in the bore of the top die. The object and use of the
plunging piece on top die is to form the hole through the larger or head end of axle-
tree box, or bush, and to ensure the metal being of an equal thickness when thickening
it up between the dies. The object and use of the slots, grooves, or notches in larger
bore of bottom or lower die is to form a lip, or lug, on the side of the axletree box
or bush.

page_text: or Bushes for Axletrees for Wheeled vehicles.
I, JOHN GEORGE HARRISON, No. 11 Noel Road, Edgbaston Birmingham Manager
of Works 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:
The object of my invention is to make wrought iron or steel bushes or boxes for
axletrees for wheeled vehicles of one piece of metal only, instead of two or more as is
usualy the case, and for this purpose I take a flat plate of iron or steel of a width and
thickness to suit my purpose but longer than I propose making the box or bush.
Having heated the plate described above to a proper heat for bending, I, by means
of the ordinary appliances bend the plate and cause it to take the form and shape of a
tube or pipe.
I then reheat the tube or pipe to a welding heat, & place it while at this heat between
suitable tools worked in a steam hammer or drop stamp for about two thirds of the
full length of the tube or pipe, and so weld the edges of the plate together, and make
a cylindrical tube solid and complete, for that proportion of its length.
For my next process I provide myself with a pair of steel Dies, which I work in a
drop stamp by preference, but they may be used either in a steam hammer, tilt hammer,
rolls squeezers or similar contrivances.
The one which I will call the lower die being sunk, cut, or bored out from its face
downwards, to receive the welded part of the tube or pipe (as hereinbefore described)
freely and easily.
In addition to this cylindrical bore just set forth, I bore out the mouth of said
cylindrical bore for a short distance, so that the die has then a larger bore at the face
and for a short distance down than the size of the welded tube or pipe.
On one or more sides of the larger bore in the lower die 1 cut a slot, groove, or,
notch, which runs downward from the face of the die to the point of junction of the
larger and smaller bores therein.
The top or upper die is bored out to correspond in its greatest inside diameter with
the inside diameter of the larger bore in the lower die, and in the centre of the top die
I form a round plunging piece, equal in diameter to the size I wish to finish the axle-
tree box or bush internally.
The plunging piece just described stands down considerably below the lower face of
the top die, and when the meeting faces of both dies are together is well within the
smaller bore of the lower die.
Having my dies prepared and set in a drop stamp, I heat the unwelded end of the
tube or pipe to a proper heat for welding, and place it in a perpendicular position

page_text: within and between the dies, the part previously welded being within the smaller bore
of the die, so that the part now welding hot is opposite the enlarged part of the lower
die, and standing out of and above it.
By bringing the drop stamp to work the dies are brought together and force the
welding metal to take their form, and by displacing the metal lengthwise thicken it
up to cause it to fill in the larger bore and the slots grooves or notches cut in the
larger bore of the lower die, and at the same time fill in the bore of the top die.
The object and use of the plunging piece on the top die is to form the hole through
the larger or head end of the axletree box or bush, and to ensure the metal being of
an equal thickness when thickening it up between the dies.
The object and use of the slots, grooves, or notches in the larger bore of the lower
die is to form lips, or lugs on the side of the axle tree box or bush to prevent the said
box or bush turning in the wheel stock when in use.
Fig. A. in accompanying drawings shows the plate of metal or blank from which
I by my different and consecutive actions produce a wrought iron or steel axle tree box
in and of one piece of metal, Fig. B. shows the blank A bent ready for welding and
represents a rough tube or pipe, Fig. C, shows the tube or pipe welded for about two
thirds of its length, and Fig. D. shows the finished axletree box or bush as far as my
invention is intended to apply, with the lip or lug formed in the notch on the head of
the box or bush.
Having now particularly described and ascertained the nature of my said invention,
and in what manner the same is to be performed 1 declare that what I claim is :-
:-
Firstly, the manufacture of wrought iron or steel boxes or bushes from one piece
of metal only and thereby making them perfectly oiltight.
And secondly that by this invention I am enabled to produce superior boxes or
bushes for axletrees at a lower cost than heretofore.
Dated this Twelveth day of September 1887.