An Improvement in Chilled Boxes or Bushes for Coach and other like Axles and in the Manufacture of the same.
Year: 1889

page_text: Date of Application, 26th July, 1889
Complete Specification Left, 25th Apr., 1890-Accepted, 31st May, 1890
TROV DIUNAL DIUITIVATION.
An Improvement in Chilled Boxes or Bushes for Coach and other
like Axles and in the Manufacture of the same.
I, ENOCH BIRKS, trading as E. Birks, of Stafford Street Works, Wednesbury,
Staffordshire, Manufacturer, do hereby declare the nature of this invention to be as
follows
This invention consists in the herein described improvement in chilled cast iron
boxes or bushes for coach and other like axles and in the manufacture of the same
the object being to so construct the said chilled boxes or bushes that they will be more
efficiently lubricated than heretofore.
In carrying out this invention I form in the interior of the barrel part of the axle
box in the manner herein described, a longitudinal, spiral, or other groove or grooves
which by preference do not extend the whole length of the barrel but are stopped off
a short distance from each end. The said groove or grooves forms or form a réservoir
or reservoirs in which the oil accumulates.
I make the said groove or grooves by providing a corresponding sand or metal core
or cores projecting from the periphery of the chill the said core or cores being inade
separate from the chill so as to enable the latter to be withdrawn from the casting.
When sand cores are used for forming the said groove or grooves I provide corre-
sponding recesses in the periphery of the chill in which the said cores fit so that after
the axle box is cast the chill can he removed and the core or cores scraped out of the
groove or grooves afterwards. When the said cores for the groove or grooves are
made of metal the said grooves are well tapered on each side and the cores fit into
dove-tailed recesses in the periphery of the chill so that after the axle box is cast the
chill can he withdrawn therefrom leaving the said core or cores in the groove or
grooves which will then be free to be removed.
Dated this 25th day of July 1889
CHARLES BOSWORTH KETLEY,
Agent for the Applicant...
COMPLETE SPECIFICATION.
An Improvement in Chilled Boxes or Bushes for Coach and other
like Axles and in the Manufacture of the same.
1, ENOCH BIRKS, trading as E. Birks, of Stafford Street Works,. Wednesbury,
Staffordshire, Manufacturer, 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 invention consists in the herein described improvement in chilled cast iron
boxes or bushes for coach and other like axles and in the manufacture of the same
the object being to so construct the said chilled boxes or bushes that they will be more
efficiently lubricated than heretofore.
In carrying out this invention I form in the interior of the barrel part of the axle
box in the manner herein described, a longitudinal or other groove or grooves which
by preference do not extend the whole length of the barrel but are stopped off a
short distance from each end. The said groove or grooves forms or form a reservoir
or reservoirs in which the oil accumulates.
I make the said groove or grooves by providing a corresponding sand or metal core
or cores projecting from the periphery of the chill the said core or cores being made
separate from the chill so as to enable the latter to be withdrawn from the casting.
When sand cores are used for forming the said groove or grooves I provide

page_text: corresponding recesses in the periphery of the chill in which the said cores fit so that
after the axle box is cast the chill can be removed and the core or cores scraped out
of the groove or grooves afterwards. When the said cores for the groove or grooves
are made of metal the said grooves are made tapered on each side and the cores
fit into dove-tailed recesses in the periphery of the chill so that after the axle box
is cast the chill can be withdrawn therefrom leaving the said core or cores in the
groove or grooves which will then be free to be removed.
On the accompanying drawing Fig. 1 represents in longitudinal section a chilled
axle box or bush made according to this invention: Fig. 2 represents in elevation
and cross section a chill provided with sand cores for forming the grooves in the said
axle box; Fig. 3 represents in elevation and plan and Fig. 4-represents in longitudinal
-and-cross sections a chill provided with removable metal cores for forming the said
grooves and Fig. 5 represents one of the said removable metal cores separately.
The same letters of reference indicate the same or corresponding parts in all the
Figures.
A is the chilled axle box or bush and the said oil grooves in the inside of the
barrel part of the saune are marked b. This example has three of these oil grooves.
but fewer or more than three may be used. C is the chill around which the axle
box is cast in the usual way and the three cores thereon for forming the grooves b
are marked d. In the chill shewn by Fig. 2 these cores d are made of sand in the
usual way and they fit in recesses e in the chill so that after the axle box is cast the
chill can be withdrawn therefrom and the cores scraped out of the recesses b.,
The cores d' of the chill illustrated by Figs. 3, 4 and 5 are made of metal each'
fitting in and filling up a longitudinal tapered dovetailed groove f in the chill.
Upon withdrawing the chill from the cast axle box in the usual way the metal
cores d' engaging in the recesses will remain in the axle box and can then be
removed.
My invention as above described can be similarly applied to chilled axle boxes or
bushes of other patterns than that shewn.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:-
1. In casting chilled coach and other like axle boxes or bushes, the employment of
chills furnished with removable laterally projecting sand or metal cores for forming
oil grooves in the said axle boxes or bushes, substantially as herein before described
and illustrated by the accompanying drawing.
2. The improved chilled coach or other like axle boxes or bushes hereinbéfore
described and illustrated by the accompanying drawing furnished with internal oil
sgrooves formed during the process of casting the same around a chill as hereinbefore
set forth.
Dated this 23rd day of April 1890.
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.