IMPROVEMENTS IN ACCUMULATORS AND HYDRAULIC CYLINDERS
Year: 1878

page_text: LETTERS PATENT to Edward Bayzand Ellington, of 121, Boughton, in the City
of Chester, Mechanical Engineer, for the Invention of "IMPROVEMENTS IN
ACCUMULATORS AND HYDRAULIC CYLINDERS."
Sealed the 6th May 1879, and dated the 22nd November 1878.
PROVISIONAL SPECIFICATION left by the said Edward Bayzand Ellington
at the Office of the Commissioners of Patents on the 22nd November 1878.
EDWARD BAYZAND ELLINGTON, of 121, Boughton, in the City of Chester,
Mechanical Engineer. "IMPROVEMENTS IN ACCUMULATORS AND HYDRAULIC
CYLINDERS."
My Invention relates to the construction of such accumulators and hydraulic
cylinders as are supported upon their lowest extremities. The lowest extremity
or the end opposite the stuffing box of the cylinder of the accumulator or hydraulic
cylinder I make to telescope into the base plate upon which the cylinder rests, thus
avoiding a flange at the junction of these parts. I also cast the end, which is usually
a part of the base, in one piece with the cylinder. A suitable socket is provided
in the base plate for the reception of the prepared end of the cylinder. The objects
of these improvements are to obtain greater uniformity of metal at these points,
and securing at the same time greater economy in the processes of manufacture.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Edward Bayzand Ellington in the Great Seal Patent Office on the
15th May 1879.
$6
EDWARD BAYZAND ELLINGTON, of 121, Boughton, in the City of Chester,
Mechanical Engineer.
IMPROVEMENTS IN ACCUMULATORS AND HYDRAULIC
CYLINDERS."
My Invention relates to the construction of such accumulators and hydraulic
cylinders as are supported upon their lowest extremities. The lowest extremity
or end opposite the stuffing box of the cylinder of the accumulator or hydraulic
cylinder I make to telescope into the baseplate upon which the cylinder rests, thus
avoiding a flange at the junction of these parts. I also cast the end which is usually
a part of the base in one piece with the cylinder. A suitable socket is provided
in the base plate for the reception of the prepared end of the cylinder. The objects
of these improvements are to obtain greater uniformity of metal at these points,
and securing at the same time greater economy in the processes of manufacture.
DESCRIPTION OF THE DRAWING.
Figure 1 is a sectional elevation of my Invention.
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"A" is the base plate of the accumulator or hydraulic cylinder, which is formed
to take the weight only of the cylinder and load on the ram E," and to steady the
.same. This base plate may be bored to fit the outside of the cylinder, or may be
a lose fit with space for lead or other jointing material. "B" is the lower
extremity of the cylinder, with which is cast the bottom "D." The outer surface
for the required distance is usually turned to fit the socket of the base plate.
"C" is the branch for the inlet and outlet of the fluid used in the cylinder. By
this arrangement the high pressure fluid contained in the accumulator or hydraulic
cylinder has no access to any part of the base casting of the cylinder. The cylinder
is of more uniform section than when the base forms part of the cylinder, and the
process of manufacture of both cylinder and base is facilitated.
Having now described the nature of my said Invention, and in what manner it
is to be performed, I claim the combination of an accumulator or hydraulic cylinder
and base plate, substantially as above described.
In witness whereof, I, the said Edward Bayzand Ellington, have hereto set
my hand and seal, this Fourteenth day of May, in the year of our Lord
One thousand eight hundred and seventy-nine.
E. B. ELLINGTON. (L.S.)