IMPROVEMENTS IN THE MANUFACTURE OF FLAPPED AXLES
Year: 1885

page_text: We AMBROSE EDMUND BUTLER and HUGH MYDDLETON BUTLER of Kirkstall
Forge near Leeds in, the County of York Iron Manufacturers, do hereby declare
the nature of said invention for "IMPROVEMENTS IN THE MANUFACTURE OF
FLAPPED AXLES to be as follows:-
ม
Our invention refers to improvements in the mode of forming the flaps on axles
for road and other vehicles.
The flap is that part of the axle to which the springs are usually attached.
In our mode of forming the flap, we dispense with the welding thereof onto such
axles, and construct it as follows:-
In the first place we take the piece of metal and forge the end thereof under a
steam or other hammer into the arm or barrel of the axle, at the same time we
form thereon a circular or other shaped collar in the position longitudinally where
the flap is required and of such dimensions as may be found convenient or necessary
for producing such flap.
We then operate on this flap collar by a tool or a series of tools or forms under a
stamping or other kind of machine, and force it into its required form, we after-
wards finish the tail or shank part of the axle, or when preferred the flap collar
may be shaped after the tail or shank part is formed; or it may be formed simul-
taneously with the forging or forming of the tail or shank part.
By the above mode of constructing the flap, it being formed out of the solid
substance of the axle instead of being welded thereon, the cost of the manufacture
thereof is much reduced, also the danger of weakening such axle is avoided and
the flap being solid therewith, greater strength of the parts is the result.
J. W. HARDING,
For Applicants.

page_text: We AMBROSE EDMUND BUTLER and HUGH MYDDLETON BUTLER of Kirkstall
Forge near Leeds in the County of York, Iron Manufacturers, 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 :—
Figs. 1 and 2 are respectively a front elevation and plan of preparatory dies.
Figs. 3 and 4 are respectively a front elevation and plan of dies for completing
formation of flap. Fig. 5 represents axle with flap in its preparatory form. Fig. 6
represents the flap completed. Fig. 7 is a transverso section shewing flap in
intermediate stage and Fig. 8 transverse section of flap completed.
In the first place we take a piece of metal and forge the end thereof into the
arm or barrel a of the axle, at the same time we form thereon a circular or other
shaped collar b in the position longitudinally where the flap is required and of such
dimensions as may be found convenient or necessary for producing such flap.
Figs. 1 and 2 represent the dies c and d for forming the above and may be applied
to a steam or other hammer.
•
We then operate upon this flap collar b by other dies or tools e and for a series
of dies, tools or forms under a stamping or other kind of machine and force it into
its required form. One of the intermediate forms it may be caused to assume is
shewn at g Fig. 7 and produced prior to the complete form / shewn at Figs. 3. 461
and 8.
We afterwards finish the tail or shank part of the axle, or when preferred the
flap collar may be shaped after the tail or shank part is formed, or it may be formed
simultaneously with the forging or forming of the tail or shank part.
By the above mode of constructing the flap, it being formed out of the solid
substance of the axle instead of being welded thereon, the cost of manufacture
thereof is much reduced, also the danger of weakening such axle is avoided and
the flap being solid therewith, greater strength of the parts is the result.

page_text: Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that
what we claim is
The manufacture of flapped axles, whereby the flap is formed out of the solid
substance of the axle instead of being welded thereon, substantially as and for
purposes herein set forth.