IMPROVEMENTS IN THE CONSTRUCTION OF COAL TUBS, PART OF WHICH IMPROVEMENTS IS APPLICABLE TO THE CONSTRUCTION OF RAILWAY WAGGONS AND OTHER VEHICLES.”
Year: 1876

page_text: LETTERS PATENT to Howard Cochrane Jobson, Arthur Henderson Jobson, and
Henry Johnson, the younger, all of Dudley, in the County of Worcester, for
the Invention of "IMPROVEMENTS IN THE CONSTRUCTION OF COAL TUBS, PART
OF WHICH IMPROVEMENTS IS APPLICABLE TO THE CONSTRUCTION OF RAILWAY
WAGGONS AND OTHER VEHICLES.”
PROVISIONAL SPECIFICATION left by the said Howard Cochrane Jobson,
Arthur Henderson Jobson, and Henry Johnson at the Office of the Commis-
sioners of Patents on the 5th October 1876.
HOWARD COCHRANE JOBSON, ARTHUR HENDERSON JOBSON, and HENRY JOHNSON,
the younger, all of Dudley, in the County of Worcester. "IMPROVEMENTS IN THE
CONSTRUCTION OF COAL TUBS, PART OF WHICH IMPROVEMENTS IS APPLICABLE TO
THE CONSTRUCTION OF RAILWAY WAGGONS AND OTHER VEHICLES."
This Invention has for its object improvements in the construction of coal tubs,
part of which improvements is applicable to the construction of railway waggons
and other vehicles.
We construct coal tubs in such a manner that the under frame is made to carry
the wheel brackets, buffers, and other fixtures, and can with them be separated
from the body of the tub, so that when the body is worn out it is easily replaced
with a new one without disturbing the frame and its fixtures.
The frame consists in part of two longitudinal bars of wrought iron, to which the
body is bolted, and the wheel brackets are cast with recesses to receive these bars;
they fit over them and are secured by through bolts. Each bracket on the side
adjacent to the wheel has a conical collar formed upon it around the hole, through
which the axle passes, and the wheel is formed with a collar with a corresponding
conical cavity fitting the cone on the bracket.
The axle is hollow, and is able to turn both in the bracket and in the wheel.
The interior of the hollow axle is filled or partially filled with oil or lubricating
liquid, which is retained by screw caps fitted to the ends of the axle. To allow of
the escape of the oil for lubrication the axle is perforated both within the bracket
and the boss of the wheel. It may also be convenient to use needles in the per-
Drinn 31

page_text: forations of the axle to regulate the supply of lubricating liquid. The caps are
screwed up so as to allow a small degree of play between the wheels and the
brackets, and when suitably set are rendered fast by means of keys or cotters.
Where the brackets are outside the wheels the oil or lubricating material may be
allowed to escape by perforations at the end of the axle, the axle passage through
the bracket being closed on the outer side by a screw cap.
In order to lubricate tubs or vehicles having wheels and axles thus arranged we
provide a piece of road laid on the side of a steep incline, and when the vehicles
are on this piece of road we remove the caps from the upper ends of the axles and
refill the axles with oil.
The buffers of the tubs can conveniently be formed of blocks of wood serving as
bumping pieces, such blocks being in the form of a truncated cone, and set in a
corresponding conical ring of iron, which is secured by bolts to the end of the tub
body. Where desired a spring of india-rubber or of steel may be interposed
between the wooden bumping block and the plate forming the end of the tub
body.
By constructing coal tubs in the manner above described the cost of maintenance
is much less than with tubs of the ordinary construction; and further, in con-
sequence of the rubbing parts being always perfectly lubricated much less power is
required to move the tubs from place to place.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Howard Cochrane Jobson, Arthur Henderson Jobson, and Henry
Johnson in the Great Seal Patent Office on the 4th April 1877.
HOWARD COCHRANE JOBSON, ARTHUR HENDERSON JOBSON, and HENRY JOHNSON,
the younger, all of Dudley, in the County of Worcester. "IMPROVEMENTS IN THE
CONSTRUCTION OF COAL TUBS, PART OF WHICH IMPROVEMENTS IS APPLICABLE TO THE
CONSTRUCTION OF RAILWAY WAGGONS AND OTHER VEHICLES."
This Invention has for its object improvements in the construction of coal tubs
part of which improvements is applicable to the construction of railway waggons
and other vehicles.
We construct coal tubs in such a manner that the under frame is made to carry
the wheel brackets, buffers, and other fixtures, and can with them be separated
from the body of the tub, so that when the body is worn out it is easily replaced
with a new one without disturbing the frame and its fixtures.
The frame consists in part of two longitudinal bars of wrought iron, to which the
body is bolted, and the wheel brackets are cast with recesses to receive these bars;
they fit over them and are secured by through bolts. Each bracket on the side
adjacent to the wheel has a conical collar formed upon it around the hole, through
which the axle passes, and the wheel is formed with a collar with a corresponding
conical cavity fitting the cone on the bracket.
The axle is in some cases made hollow and able to turn both in the bracket and
in the wheel. The interior of the hollow axle is filled or partially filled with oil
or lubricating liquid, which is retained by screw caps fitted to the ends of the axle.
To allow of the escape of the oil for lubrication the axle is perforated both within
the bracket and the boss of the wheel. It may also be convenient to use needles
in the perforations of the axle to regulate the supply of lubricating liquid. The
caps are screwed up so as to allow a small degree of play between the wheels and
the brackets, and when suitably set are rendered fast.
In order to lubricate tubs or vehicles having wheels and axles thus arranged we
provide a piece of road laid on the side of a steep incline, and when the vehicles
are on this piece of road we remove the caps from the upper ends of the axles and
refill the axles with oil; or the necessity for removing the caps may be obviated by
providing screw plugs, which can be taken out for filling,

page_text: Figure is a plan, with the body removed, or a coal tub or such-like vehicle
constructed according to our Invention; Figure 2 is a longitudinal section of the
same; Figure 3 is an end elevation partly in section.
a, a, is the bed plate or frame consisting of two longitudinal bars and two trans-
verse bars with diagonals at the corners; they may be rivetted together, or they
may be cut from a single plate; b, b, are the wheel brackets, they are cast with
recesses to receive the longitudinal bars of the frame, and also projecting lugs,
which are welded to the frame to prevent the wheel brackets shifting endwise;
c, c, are the axles, they are able to turn in the wheel brackets, and the wheels d, d,
are free to rotate upon them. The axles as represented in these Figures are solid,
and the wheel brackets are provided with cavities for holding oil; b¹ are screw
plugs, which are removed for the purpose of filling these cavities. There is a per-
foration in the bearing of the axle, by which the oil issues slowly to lubricate the
axle as it is required. Wires or needles e, e, are inserted into the oil holes to keep
them clear, they are put in from the bottom, the bracket being bored right through,
and they are of such a length that when the axle is in its place they cannot escape
from the holes they are intended to keep clear. At and at ' respectively the
wheel brackets and the wheels are provided with conical collars, which serve to
cause the oil to pass to the wheel more effectually than it otherwise would, and
also to exclude dust from entering between the rubbing parts. The frame a has
flaps a, a, at its ends, which are turned up to receive the buffer blocks f. a", a",
are other flaps, which are turned down and secured by bolts, they receive the links
or rings for hauling. The same bolts which secure the wheel brackets and the
flaps a¹ and all serve to fasten the body upon the frame. The wheels are kept in
their places upon the axles by means of ring washers and cotters.
Figure 4 is an end elevation partly in section of another arrangement, in which
the axle is hollow and receives the oil within it; the axle is perforated for the
escape of the oil both within the wheel and the wheel bracket. The ends of the
axle are closed by screw caps g, which also serve as stops to prevent the wheels
escaping from the ends of the axle. The caps are screwed on to the proper position
and are then rendered fast by means of locking screws. The wheel is shown in
elevation at Figure 4a. The cap at one end of the axle is provided with a plug,
which is taken out when it is necessary to fill the cavity with oil. As already
mentioned for the purpose of oiling a piece of line laid upon a transverse incline is
provided.
Figure 5 is a side elevation partly in section and Figure 6 is an end elevation of
a coal tub or such-like vehicle provided with a buffer differing from that already
described and constructed according to our Invention. h, h, are blocks of wood in
the form of a truncated cone, they are set within corresponding flanged rings of
iron i, i, which are secured by bolts to the end of the body. These Figures also
show the tub body enlarged above the level of the buffers in such manner as to
increase the capacity, which is a point of considerable importance.

page_text: Having thus described the nature of our said Invention and the manner of per-
forming the same, we would have it understood that we claim,-
First. The construction of coal tubs and such-like railway waggons and vehicles,
substantially as described and shown in the drawings hercunto annexed.
Second. The construction of the frame and lower parts of the tub or waggon or
vehicle separate from the body thereof, and so that the body can be easily removed
and replaced, substantially as herein described.
Third. The construction and combination of the axle brackets, axles, and wheels,
substantially as described.
Fourth. The construction of the buffers, substantially as described and represented
in Figures 5 and 6 of the Drawings.
In witness whereof, we, the said Howard Cochrane Jobson, Arthur Henderson
Jobson, and Henry Johnson, have hereunto set our hands and seals, this
Twenty-ninth day of March, in the year of our Lord One thousand
eight hundred and seventy-seven.
HENRY JOHNSON, THE YOUNGER. (L.S.)
HOWARD C. JOBSON.
A. H. JOBSON.
(L.S.)
(L.S.)