Improvements in the Manufacture of Piles or Billets for Rolling Mills.
Year: 1891

page_text: Date of Application (in United Kingdom), 17th Apr., 1891
Complete Specification Left. 17In Apr. 1891-Accepted, 1st Aug., 1891
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Piles or Billets for
Rolling Mills.
We, WILLIAM EYxos, of 1013, Trenton Place, in the City of Wilmington,
County of New Castle, State of Delaware, United States of America, Mechanical
Engineer, and WILLIAM SEAMAN, of 1401, Van Buren Street, in the City of
Wilmington, County of New Castle, State of Delaware, United States of America,
Mechanical Engineer, do hereby declare the nature of the said invention and in
what manner the same is to be performed to be particularly described and
ascertained in and by the following statement:-
The object of our invention is to provide for the economical manufacture of piles
or billets for being subsequently reduced into bars or other forms by a rolling-mill,
and this object we attain in the manner hereinafter set forth, reference being had
to the accompanying drawings, in which ;-
Figure 1, is a perspective view of a muck or puddle bar representing the first
stage in the preparation of the improved pile or billet.
Figs. 2, and 3, are perspective views representing different embodiments of the
second stage of the process, and
Fig. 4 is a perspective view of the completed pile or billet.
It is now the usual practice in rolling mills to cut into short pieces the bar
delivered by the muck or puddle rolls, and then to pile and confine these pieces in
the form of a rectangular block, which is charged into the furnace and reheated
prior to being subjected to the action of the finishing rolls, whereby the manufacture
of the bar or other form of rolled iron is effected. The cutting and piling of the
bar necessarily imply either the complete or partial cooling of the same and
the consequent loss due to the necessity of subsequently reheating the pile.
In carrying out our invention, therefore, we take the muck or puddle bar A,
such for instance, as is shown in Fig. 1, and either coil the same as shown in Fig. 2,
or fold it as shown in Fig. 3, so as to form a tube or block approximating in size
to the required size of the finished pile. The coiled or folded bar is then subjected
to the action of a steam hammer, a hydraulic press, or other equivalent pressing or
squeezing device, whereby it is solidified and compacted into the form of a
homogeneous slab or billet B, as shown for instance in Fig. 4. These operations
can be performed without the loss of a large percentage of heat by the bar.
Hence, when the billet is charged into the reheating furnace, it can in a short time
be brought up to the proper heat for re-rolling, thus saving both time and expense
not only in the preparation of the pile or billet, but also in the reheating of
the same.
We are aware that rolled bars have been coiled or folded to form a finished
article of manufacture, and hence do not broadly claim such coiling or folding of a
finished bar

page_text: Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is ;-
The mode heren described of preparing a pile or billet for subsequent conversion,
said mode consisting in coiling or folding the muck or puddle bar while it is hot
into billet form, and then while still hot hammering or compressing said coiled
or folded bar into a solid billet, substantially as specified.
Dated this 16th day of April 1891.
DAY, DAVIES & HUNT,
321, High Holborn, London, W.C., Agents for the Applicants.