Improvements in Hammers Worked by Steam or other Elastic Fluid under Pressure.
Year: 1887

page_text: Date of Application, 7th Sept., 1887
Complete Left, 7th June, 1888
Complete Accepted, 13th July, 1888
PROVISIONAL SPECIFICATION.
Improvements in Hammers Worked by Steam or other Elastic Fluid
under Pressure.
a
1, WILLIAM MACLEAN WILSON of the Firm of Nasmyth Wilson and Company
Limited of Patricroft in the County of Lancaster Engineer, do hereby declare the
nature of said Invention for IMPROVEMENTS IN
HAMMERS WORKED BY STEAM OR
OTHER ELASTIC FLUIDS UNDER PRESSURE to be as follows:-
My Invention consists in certain Improvements in the construction of hammers
worked by steam or other elastic fluids and the chief object of my invention when
applied to hammers in which guides are not used is to dispense with the ordinary flat
sided piston rod and the special glands and stuffing boxes required to suit the same.
In carrying out my Improvements I employ a piston rod which projects through
the bottom and top cylinder covers below the piston the rod is central with the piston
but above the piston the rod is out of centre and smaller in diameter than the lower
portion.
The piston with the upper and lower portion of the rod is preferably of one forging
the upper portion being turned eccentric to the piston.
By this means the piston and rod is prevented from turning without being mado
square or flat sided and glands and stuffing boxes of the ordinary form can be used.
The valve mechanism and motion work is preferably actuated from a lever socured
to the piston rod above the top cylinder cover the mechanism being placed in such a
position that a perfectly clear space is obtained between the anvil face and the stuffing
box on the bottom cover of the cylinder thus giving much more room for forging.
In order to obtain increased facility for working forgings and bars I propose to
place the cylinder and the anvil out of line with the lower portion of the standard of
the hammer in both directions. By this means a clear space is obtained and long
forgings can be worked at any point at pleasure.
This improved construction is applicable to all single standard bammers.

page_text: Improvements in Hammers Worked by Steam or other Elastic Fluids
under Pressure.
I WILLIAM MACLEAN WILSON of the firm of Nasmyth Wilson and Company
Limited of Patricroft in the County of Lancaster Engineer, do hereby declaro the
nature of this Invention, and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement :—
My invention consists in certain improvements in the construction of hammers
worked by steam or other elastic fluids and the chief object of my Invention when
applied to hammers in which guides are not used is to dispense with the ordinary flat
sided piston rod and the special glands and stuffing boxes required to suit the same.
In carrying out my improvements I employ a piston rod which projects through
the bottom and top cylinder covers below the piston the rod is central with the piston
but above the piston the rod is out of centre and smaller in diameter than the lower
portion.
The piston with the upper and lower portion of the rod is preferably of one forging
the upper portion being turned eccentric to the piston.
By this means the piston and rod is prevented from turning without being mado
square or flat sided and glands and stuffing boxes of the ordinary form can bo
used.
The valve mechanism and motion work is preferably actuated from a lever secured
to the piston rod above the top cylinder cover the mechanism being placed in such a
position that a perfectly clear space is obtained between the anvil face and the stuffing
box on the bottom cover of the cylinder thus giving much more room for forging.
In order to obtain increased facility for working forgings and bars I propose to
place the cylinder and the anvil out of line with the lower portion of the standard of
the hammer in both directions. By this means a clear space is obtained and long
forgings can be worked at any point at pleasure.
This improved construction is applicable to all single standard hammers.
And in order that my Invention may be fully understood and readily carried into
effect I will describe the accompanying Sheet of Drawings reference being had to the
figures and letters marked thereon.
Fig. 1 is a side elevation. Fig. 2 a front elevation and Fig. 3 a plan of a single
standard hammer worked by steam or other elastic fluid under pressure and embodying
my improvements and Fig. 4 shows two detail views of the piston and part of the
piston rods.
In Figs. 1 to 3.-a designates the standard or column which in this case is cast in
one piece with the base plate a¹ and anvil block; b is the anvil face and c the hammer
face which is operated by the lower piston rod d. The lower piston rod d as shown
in Fig. 4 is preferably made in one piece and is concentric with the piston d' and the
upper piston rod is made with and turned eccentric to the piston. The piston

page_text: works in the cylinder e and the lower piston rod d passes through a stuffing box f
while the upper piston rod d² passes through a stuffing box f¹. On the upper piston
rod is secured an arm or lever d³ to which is connected the roller bar g which is
free to slide vertically in guides h and on the bar g is mounted the roller g¹ which
actuates the tripper lever pivoted above the steam cylinder and so operates the valve
mechanism.
By the above described arrangement of parts I am able to dispense with guides and
also with flat sided piston rods and the special stuffing boxes and glands necessitated
thereby and instead to guide the piston and hammer by placing the upper piston
rod eccentrically and further by mounting the valve gear as shown and arranging
the parts so as to leave a perfectly clear space between the lower stuffing box fand
the anvil face b plenty of room is obtained for handling large forgings.
Again by forming or twisting the supporting column or standard a and uniting the
same to one corner of the base plate a' as best shown in the plan view Fig. 3
increased facility is afforded for handling long bars and forgings.
Having now particularly described and ascertained the nature of my said Invention
and in what manner the same is to be performed I declare that what I claim is―
1. The combination with the piston of a hammer worked by steam or other elastic
fluid under pressure, of two piston rods one of which is placed concentrically and the
other eccentrically substantially as and for the purposes herein specified.
2. In a single standard hammer the arrangement of twisted supporting standard
or column and base plate substantially as and for the purposes herein described and as
shown.
3. The construction combination and arrangement of parts embodying my im-
provements in hammers worked by steam or other elastic fluid under pressure
substantially as and for the purposes herein described and as illustrated by the
Drawings annexed.
Dated this Sixth love of Tun 1000
H. B. BARLOW,
17, St. Ann's Square, Manchester,
Agent for Applicant.