Improvements in Pedestal Bearings for Colliery Corves, Tubs, and the like Mineral Wagons.
Year: 1895

page_text: Date of Application, 11th A; r.,
1895
Complete Specification Left, 11th Jan., 1396-Accepted, 15th Feb., 1896
PROVISIONAL SPECIFICATION.
Improvements in Pedestal Bearings for Colliery Corves, Tubs, and
the like Mineral Wagons.
I, JOSEPH TRIPPETT of the Standard Steel Castings Works, Coleridge Road,
Attercliffe, Sheffield, in the County of York, Steel Founder, do hereby declare the
nature of my said invention to be as follows:-
Pedestal bearings such as are herein referred to, are the bearings in which the
journal of the axle revolves, and as usually constructed are cast of the requisite
form in one piece with bolt holes so that they can be secured to the under sole or
frame of the corve, tub or wagon, hereinafter called the wagon, so that the body
of the wagon with its bearings can be lifted on and off the axles. In some cases
the axles are secured by a loop, strap or cotter placed underneath the axle and so
attached to the pedestal or framing of the wagon, as to allow the axle plenty of
play and at the same time prevent the axle leaving the bearings when the wagon is
lifted for tipping or greasing or otherwise. In such pedestals the bearings in
which the axles revolve become worn and in course of time require to be taken off
and entirely replaced.
The object of my present invention is to obviate the necessity of such entire
replacement and thereby reduce the cost of repairs and maintenance.
I effect this by constructing the pedestal in two parts, one part constituting the
frame, which is secured to the wagon and the other part a loose fillet or step which
forms the wearing surface and actual bearing in which the axle revolves. This
loose bearing or step I construct somewhat taper in form so that it can be inserted
from the back or upper side of the pedestal into a corresponding space or recess
formed in the pedestal frame and so proportioned that when this loose step
driven into position, it is level with the back of the pedestal frame and projects on
the underside a sufficient distance clear of the frame, to allow of a considerable
amount of wear before the journal of the axle could conie in contact with the
frame. When the loose bearing or step bas become so far worn as to require
renewing it can be knocked out of the pedestal frame and replaced by a new one
and as the loose step here described need not weigh more than a fractional part of
the whole pedestal, considerable economy may be effected. In some cases this
loose bearing or step may be made of different material to that employed in the
construction of the pedestal frame, as for example, it may be made of brass or
other metallic alloy, or of hard wood or other suitable material or substance.
I am aware that there are various existing methods for fitting loose bearings or
steps in pedestals, as to which I lay no special claim to novelty, the essential
feature of my invention being the particular arrangement and construction of the
combined parts by which the loose bearing or step is fitted and secured in the
pedestal frame and by which the same can be taken out and renewed, as required.
Dated this 10th day of April 1895.
R. HEBER RADFORD,
Agent for the Applicant.

page_text: Improvements in Pedestal Bearings for Colliery Corves, Tubs, and
the like Mineral Wagons.
I, JOSEPH TRIPPETT of the Standard Steel Casting Works, Coleridge Road,
Attercliffe, Sheffield, in the County of York, Steel Founder, do hereby declare the
nature of my said invention and in what manner the same is to be performed to
be particularly described and ascertained in and by the following statement:-
Pedestal bearings such as are herein referred to, are the bearings in which the
journal of the axle revolves, and as usually constructed are cast of the requisite
form in one piece with bolt holes so that they can be secured to the under sole or
frame of the corve, tub or wagon, hereinafter called the wagon, so that the body
of the wagon with its bearings can be lifted on and off the axles. In some cases
the axles are secured by a loop, strap or cotter placed underneath the axle and so
attached to the pedestal or framing of the wagon, as to allow the axle plenty of
play and at the same time prevent the axle leaving the bearings when the wagon
is lifted for tipping or greasing or otherwise. In such pedestals the bearings in
which the axles revolve become worn and in course of time require to be taken off
and entirely replaced.
The object of my present invention is to obviate the necessity of such entire
replacement and thereby reduce the cost of repairs and maintenance.
I effect this by constructing the pedestal in two parts, one part constituting the
frame, which is secured to the wagon and the other part a loose fillet or step
which forms the wearing surface and actual bearing in which the axle revolves.
My invention will be better understood on reference to the accompanying sheet
of drawings in which,
Fig. 1. is a side elevation of one of my improved pedestals provided with a loop
or strap so placed as to prevent the axle leaving the bearings when the wagon is
lifted for tipping, or greasing or otherwise.
Fig. 2. is an end elevation of the same.
Fig. 3. is a plan looking on to the bearing in which the axle revolves.
Fig. 4. is a section taken through the centre of the bearing on the line A. B.
Fig. 5. is a plan looking on the back of the pedestal and bearing.
Fig. 6. is a side elevation of the loose bearing or step separated from the
pedestal.
Figs. 7, 8, 9, 10, 11, & 12. are corresponding views of a modified form of
pedestal and bearing constructed without the loop previously described.
The same letters refer to similar parts throughout the several views.
a, is the loose bearing or step.
b, is the pedestal frame.
c, is the loop or strap attached to and forming part of the same.
d, d, are the bolt holes by which the pedestal frame is secured to the wagon......i
The loose bearing or step a, I construct somewhat taper in form so that it can be
inserted from the back or upper side of the pedestal b, into a corresponding space
or recess formed in the pedestal frame and so proportioned that when this loose
step driven into position, it is level with the back of the pedestal frame and
projects on the underside a sufficient distance clear of the frame, to allow of a
considerable amount of wear before the journal of the axle could come in contact
with the frame. When the loose bearing or step has become so far worn as to
require renewing it can be knocked out of the pedestal frame and replaced by a
new one and as the loose step here described need not weigh more than a fractional
part of the whole pedestal, considerable economy may be effected. In some cases
this loose bearing or step may be made of different material to that employed in

page_text: the construction of the pedestal frame, as for example, it may be made of brass or
other metallic alloy, or of hard wood or other suitable material or substance.
I am aware that there are various existing methods for fitting loose bearings or
steps in pedestals, as to which I lay no special claim to novelty, the essential
feature of my invention being the particular arrangement and construction of the
combined parts by which the loose bearing or step is fitted and secured in the
pedestal frame and by which the same can be taken out and renewed as required.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is,
1. In pedestal bearings the particular arrangement aud construction of the
combined parts by which the loose bearing or step is fitted and secured in the
pedestal frame and by which the same can be taken out and renewed as required
in the manner and for the purposes substantially as herein described and
illustrated.
.
'
2. Improvements in redestal bearings in the manner and for the purpose
substantially as herein described and illustrated.
Dated this 10th day of January 1896.
R. HEBER RADFORD,
Agent for the Applicant.