An Improvement or Improvements in Vertical Column Steam Engines.
Year: 1886

page_text: Date of Application, 24th Dec., 1886
Complete Left; 8th Sept., 1887.
Complete Accepted, 11th Oct., 1887.
PROVISIONAL SPECIFICATION.
An Improvement or Improvements in Vertical Column Steam
Engines.
I THOMAS JEFFERISS of No. 368 Soho Road Handsworth in the County of Stafford
Mechanical Engineer do hereby declare the nature of this Invention to be as
follows:-
In vortical column steam engines as ordinarily constructed the cross head guide is
attached to the columns and is not connected directly with the cylinder. This method
of construction has several disadvantages. It is difficult to get the cross head in line
true with the cylinder and if it is true any yielding or springing of the columns
throws it out of line.
As
In constructing vertical column steam engines according to my invention I cast the
guide for the cross head in one piece with the bottom cylinder cover. The boring of
the said guide is consequently quite true with the stuffing box of the cylinder.
the plug on which the steam cylinder fits is cast on the said cover it is turned at the
same time and consequently all the parts thus made in one piece are in truo line with
the cylinder are not thrown out of line by any springing of the columns.
I prefer to forge the cross head on the end of the piston rod and to turn it with the
piston rod the object boing to get the guide as short as possible.
Dated this Twenty fourth day of December 1886
W. T. WHITEMAN,
Agent for the Applicant.

page_text: COMPLETE SPECIFICATION.
An Improvement or Improvements in Vertical Column Steam
Engines.
I THOMAS JEFFERISS of No. 368 Soho Road, Handsworth in the County of Stafford,
Mechanical Engineer, do hereby declare the nature of my Invention and in what
manner the same is to be performed to be particularly described and ascertained
in and by the following statement :-
In vertical column steam engines as ordinarily constructed the cross head guide is
attached to the columns and is not connected directly with the cylinder. This method
of construction has several disadvantages. It is difficult to get the cross head in line
true with the cylinder and if it is true any yielding or springing of the columns
throws it out of line.
In constructing vertical column steam engines according to my invention I cast the
guide for the cross head in one piece with the steam cylinder cover. The boring of
the said guide is consequently quite true with the stuffing box of the cylinder. As
the plug on which the steam cylinder fits is cast on the said cover it is turned at the
same time and consequently all the parts thus made in one piece are in true line with
the cylinder and are not thrown out of line by any springing of the columns.
I prefer to forge the cross head on the end of the piston rod and to turn it with the
piston rod the object being to get the guide as short as possible.
Figure 1 of the accompanying Drawing represents in sido elevation; Figure 2
partly in side elevation and partly in vertical section and Figure 3 in horizontal
section taken on the line a, a Figuro 2, the principal part of a vertical column steam
engine constructed according to my invention. The elevation part of Figure 2 is
taken in a plane at right angles to that in which the elevation Figure 1 is taken.
The same letters of reference indicate the same parts in Figures 1. 2 and 3.
bb are the columns of the steam engine supporting the steam cylinder c and parts
connected to it; d is the cross head and e the piston rod the said piston rod being by
proference forged on the said cross head d; f is the guide in which the cross head d
works and g is the cover of the cylinder e the said cover g and the cross head guide f
being cast in one piece as seen in Figure 2. The combined cylinder cover g and cross
head guide is seated on the tops of the columns b, b by means of the flange hand
the cylinder flange c is bolted to the flange h of the combined cover and cross head a
guide by screw bolts and nuts in the ordinary way. The bolt holes in the flange h of
the combined cover and cross head guide are shown in Figure 3; i is the stuffing box
in the cover through which stuffing-box the piston rod e works.
The plug
k on which the steam cylinder c fits is made in one piece with the cover g
and is turned at the same time as the cross head guide f.
By connecting the cross head guide directly with the cylinder as described and
represented the boring of the said guide is in true line with the stuffing box i and also
with the plug on which the cylinder fits hence the said parts cannot be thrown out
of line by any springing of the columns a, a.

page_text: Having now particularly described and ascertained the nature of my invention and
the manner in which the same is to be performed I declare that I claim as my inven-
tion of "An improvement or improvenients in vertical column steam engines.
Attaching the cross head guide of the vertical column steam engine directly to the
steam cylinder and making the said cross head guide in one piece with the
steam cylinder cover and also in one piece with the plug on which the steam cylinder
fits for the purpose and substantially as herein before described and illustrated in
the accompanying Drawing.
Dated this Saxond dove of Contamhan 1007