IMPROVEMENTS IN RAILWAY WHEELS:
Year: 1876

page_text: LETTERS PATENT to William Henry Kitson, of 7, Victoria Terrace, Belle Vue
Road, Leeds, Engineer, for the Invention of "IMPROVEMENTS IN RAILWAY
WHEELS:"
Sealed the 31st March 1876; and dated the 1st February 1876.
に
PROVISIONAL SPECIFICATION left by the said William Henry Kitson at
the Office of the Commissioners of Patents on the 1st February 1876.
WILLIAM HENRY KITSON, of 7, Victoria Terrace, Belle Vue Road, Leeds, Engineer.
"IMPROVEMENTS IN RAILWAY WHEELS."
My improvements in railway wheels consist of certain modes of securing the boss
or nave of the wheel to the inner frame or centre of the wheel. One of the chief
objects I have in view is to secure the whole of the wheel together in such a
manner that the boss or nave cannot become loosened from the other part of the
inner frame or centre of the wheel as is the case with previous methods in use.
I have several plans of effecting this object. In the first I form the boss or nave
with a disc (which disc extends nearly to the diameter of the centre). On each side
of this disc I place a centre, made either of wood, paper, or other suitable material;
to secure them I place washer plates or rings on the outside. I then pass a sufficient
number of bolts or rivits through the washer plates, the centres, and the disc
portion of the boss. I place this wheel centre in position in the tyre and secure it
by loose rings furnished with lips or flanges fitting into grooves or dovetails in the
tyre: To secure the whole I pass a sufficient number of bolts or rivits through the
loose rings, the centres, and the disc. The boss or nave and disc may be made
entirely of wrought or cast iron, or of wrought and cast iron combined.
In another modification of my Invention I propose to form the boss or nave with
an outside disc instead of in the centre, extending nearly to the diameter of the
centre, the wood, paper, or other centre being held in position by a washer plate or
ring, and bolts or rivets, and fixed to the tyre as described above. I am aware that
a similar plan has been proposed where a loose disc is used, and is fixed to a flange
formed on the boss or navé by means of bolts and nuts or rivets, but as these are
liable to break or become loose I prefer the plan as described above.
In another plan for effecting the same object I form the boss or nave of the wheel
with a number of ribs; having fitted the centre, made either of wood, paper, or other
suitable material, I secure them by a washer plate; I then pass a sufficient number
Price dr

page_text: of bolts or rivets through the washer plate, the centre, and the flange of the boss;
having placed this wheel centre in position in the tyre I secure it by loose rings
furnished with lips or flanges fitting into grooves or dovetails in the tyre. To
secure the whole I pass a sufficient number of bolts or rivets through the loose rings
and the centre.
The loose rings fitted to the tyres may be used plain instead of being made with
a dovetail or flanged projection, as described above, being less costly; but I prefer
to use the rings with a dovetail or flanged projection as being more secure.
.
SPECIFICATION in pursuance of the conditions. of the Letters Patent filed by
the said William Henry Kitson in the Great Seal Patent Office on the 24th
July 1876.
WILLIAM HENRY KITSON, of 7, Victoria Terrace, Belle Vue Road, Leeds, Engineer.
"IMPROVEMENTS IN RAILWAY WHEELS."
My improvements in railway wheels consists of certain modes of securing the boss
One of the chief
or nave of the wheel to the inner frame or centre of the wheel.
objects I have in view is to secure the whole of the wheel together in such a
manner that the boss or nave cannot become loosened from the other part of the
inner frame or centre of the wheel as is the case with previous methods in use.
I have several plans of effecting this object. In the first I form the boss or nave
with a disc, which disc extends nearly to the diameter of the centre. On each side
of this disc I place a centre made either of wood, paper, or other suitable material.
To secure them I place washer plates or rings on tlie outside, I then pass a sufficient
number of bolts or rivets through the washer plates, the centres, and disc
portion of the boss. I place this wheel centre in position in the tyre and secure it
by loose rings furnished with lips or flanges fitting into grooves or dovetails in the
tyre. To secure the whole I pass a sufficient.number of bolts or rivets through the
loose rings, the centres, and the disc. The boss or nave and disc may be made
entirely of steel, wrought iron, cast iron, or of either of these metals combined.
In another modification of my Invention I propose to form the boss or nave with
an outside disc instead of in the centre, extending nearly to the diameter of the
centre, the wood, paper, or other material being held in position by a washer plate
or ring, and bolts or rivets, and fixed to the tyre as described above. I am aware
that a similar plan has been proposed where a loose disc is used, and is fixed to a
flange formed on the boss or nave by means of bolts and nuts or rivets, but as these
are liable to break or become loose I prefer the plan as described above. The boss
or nave and disc may be made entirely of steel, wrought iron, cast iron, or of either
of these metals combined.
The loose rings fitted to the tyres may be used plain instead of being made with
a dovetail or flanged projection, as described above, being less costly, but I prefer
to use the rings with a dovetail or flanged projection as being more secure, but
which I do not claim.
In another plan for effecting the same object I form the boss or nave of the wheel
with a number of ribs; having fitted the centre, made either of wood, paper, or
other suitable material, I secure them by a washer plate; I then pass a sufficient
number of bolts through the washer plate, the centre, and the flange of the
boss; having placed this wheel centre in position in the tyre I secure it by loose
rings furnished with lips or flanges fitting into grooves or dovetails in the tyre. To
secure the whole I pass a sufficient number of bolts or rivets through the loose
rings and the centre, but which I do not claim.
In the annexed Drawing I have shewn some of the modes of carrying out my
Invention.
Fig. 1 represents a cross section of my improved wheel. A is the tyre; B is the
disc; C, C, are the centres, made either of wood, paper, or other suitable material;

page_text: D, D, are the washer plates or rings; E, the bolts or rivetts which secure the whole
together; F, F, are the loose rings furnished with lips or flanges fitting into grooves
or dovetails in the tyre; G, the bolts or rivetts which secure the whole to the tyre.
Fig. 1, 2, 3, and 4 shew other methods of securing the wheel to the tyre, similar
letters referring to similar parts as shewn in Fig. 1. Fig. 1, 2, and 3 shews Mansell's
Patent rings; Fig. 4 shews Mansell's old form of ring.
Figs. 5, 6, 7, and 8 shew other modifications of my wheel in which the disc is
formed outside instead of in the centre.
A is the tyre; B is the disc; C, the centre, made either of wood, paper, or other
suitable material; D, the washer plate; E, the bolts or rivets; F, the loose rings;
and G, bolts or rivets.
I do not bind myself to the exact forms as shewn, as other modifications of the
principle may be devised.
In the above modes of securing the whole of the wheel together I wish it to be
understood that what I claim as new is a combination of the boss or nave formed
with a disc, the centre or centres of wood, paper, or other suitable material, and the
washer plates or rings as herein described, the whole being secured to the tyre by
any of the usual or suitable means.
In witness whereof, I, the said William Henry Kitson, have hereunto set my
hand and seal, this Twenty-fourth day of July, in the year of our Lord One
thousand eight hundred and seventy-six.
WILLIAM H. KITSON,
(L.S.)