Year: 1885

page_text: We EDWARD COPE of High Bank Steel Works Openshaw Manchester, in the
County of Lancaster Nut and Tube Manufacturer and ALFRED HOLLINGS of the
same place Manager of Works, do hereby declare the nature of this invention to
be as follows:-
The object is to provide from less weight of metal, crank shafts and axles of
greater strength than has been possible heretofore, and which will admit of more
thorough lubrication.
.
The invention consists essentially First In fashioning by rolling or otherwise
the main parts of shafts and axles from one or more lengths of tubes of the
requisite internal and external diameters. Second In thickening whilst heated
by means of endwise pressure those parts of the metal which are to be cranked
or bent; and Third In bending the said tube or tubes with thickened parts when.
hot and filled with lead sand or equivalent substance if necessary.
Dies and hydraulic pressure are used by preference for compressing the tubes
lengthwise.
J. T. KING,
Per J. Richman,
Agent for the Applicants.

page_text: The invention consists essentially-First-In fashioning by rolling or otherwise
the main parts of shafts and axles from one or more lengths of tubes of the
requisite internal and external diameters.
3
Second-In thickening whilst heated by means of endwise pressure those parts
of the metal, which are to be cranked or bent ;-and-
Third-In bending the said tube or tubes with thickened parts when hot, and
if necessary, filled with lead, sand or equivalent substance. Dies and hydraulic
pressure are used by preference for compressing the tubes lengthwise.
In carrying our invention into practice, we roll or fashion a hollow tube of the
required length and external and internal diameters in any convenient way, but
by preference, by the use of hollow ingots of steel, obtained by casting when a core
is used so as to secure the strength due to skin surface. The said tubes are heated
at such parts as are to be cranked, or bent and thickened externally and internally,
or either, by means of end pressure, preferably hydraulic pressure, When thickened
externally the tube is held in dies. And when thickened internally, mandrels
are used.
Figure 1. is a section of a shaft shewing internal and external thickenings-
Figure 2.-shews such a shaft partially cranked, or bent at the thickened portions.
In practice the portions a-forming the exteriors of the curves when bent, would
be thicker than the portions b forming the interiors of the curves. That is to say,
the thickening is performed excentrically.-Figures 3 and 4. are elevations of
double and single crank shafts under our invention.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed-we declare that
what we claim is :-
First The manufacture of cranked shafts and Axles, substantially as herein
set forth.
forth.
:
Second-Cranked Shafts and Axles, manufactured, substantially as herein set
Third In the manufacture of cranked shafts or axles, thickening rolled steel
tubes, at the required parts, substantially as described for the purpose set forth.
Fourth Bending or cranking hollow steel Axles or Shafts, with thickened parts,
substantially as set forth.
"
1000