IMPROVEMENTS IN MACHINERY OR APPARATUS FOR ROLLING RAILWAY AXLES AND OTHER LIKE ARTICLES
Year: 1881

page_text: PROVISIONAL SPECIFICATION left by the said
Office of the Commissioners of Patents on the
munication from abroad by Marcelin Liogier, of
France, Pattern Maker.
John Henry Johnson at the
26th March 1881. A com-
Crensot, in the Republic of
JOHN HENRY JOHNSON, of 47, Lincoln's Inn Fields, in the County of Middlesex,
Gentleman. "IMPROVEMENTS IN MACHINERY OR APPARATUS FOR ROLLING
RAILWAY AXLES AND OTHER LIKE ARTICLES." A communication from abroad
by Marcelin Liogier, of Crensot, in the Republic of France, Pattern Maker.
This Invention relates to machines or apparatus for rolling railway axles and
other like cylindrical articles, and it consists in rolling and compressing these
articles between a convex surface and a concave surface arranged as hereinafter
described.
In carrying out this Invention as applied, for example, to the rolling of railway
axles, a roller is employed which is formed with portions of its surface at different
radii, as hereinafter described, and is provided with suitable projections and
recesses for imparting the desired shape to the axle operated on. This roller
rotates in proximity to a stationary semi-cylindrical concave surface or concave
provided with corresponding recesses and projections, and the space between the
roller and the concave presents an aperture at its upper side for the introduction
of the materials to be rolled, and gradually decreases in width towards its lower
part.
Two projections are provided at the side of the aperture which serve to regulate
the rolling action, that is to say, to prevent more material being engaged on one
side than on the other, and three blades are arranged at each extremity of the
roller and of the concave which serve to cut off the material which is in excess.
The roller or cylinder has a portion of its convex surface removed to a small
depth on one half of its periphery in order to obtain a shoulder or projection, upon
which the material to be rolled is deposited at the moment when the cylinder is at
rest.
The ingot to be rolled is placed upon a suitable inclined table or support above
the roller, and slides down to the aperture above the space between the cylinder
and concave, so as to be supported on one side by the shoulder on the cylinder,
and on the other side by the upper part of the concave. The cylinder then
describes half a revolution, during which the ingot remains in the same position,
TD 0.71

page_text: being supported on one side by that portion of the cylinder on which the periphery
has been removed, as herein before described. When this part of the periphery has
passed, the metal becomes engaged in the space between the cylinder and the
concave, and is carried round with the cylinder, being compressed and formed into
the required shape at the same time by the action of the concave surface on one
side and the convex surface of the cylinder on the other, until the axle is delivered
onto a suitable support underneath, the cylinder being cut to the required length
by the knives or cutters hereinbefore described.
The cylinder may be driven by a pinion in gear with a wheel on the axis of the
cylinder or by any other suitable arrangement, and serves to roll the central part
and the two journals of the axle.
The cylinder and its gearing are mounted on a sliding frame, which is caused to
move in a horizontal direction by means of a screw working in a nut for the
purpose of enabling the space between the cylinder and the concave to be adjusted
as required, according to the size of the axles which it is desired to produce.
The bearings of the cylinder are also capable of horizontal and vertical adjust-
ment in the frame in order to enable the position of the cylinder to be regulated
with precision.
When the cylinder and its frame are moved by a screw, as hereinbefore described,
the concave is a fixture or stationary, but the apparatus may be so arranged as to
enable the concave to be adjusted by means of screws or otherwise, the cylinder
being in this case allowed to remain stationary.
The frame slides upon guides, or may run upon rollers if preferred. In like
manner the concave may either slide upon guides or run upon rollers.