Improvements in or relating to Valves for Steam-hammers and the like.
Year: 1896

page_text: Date of Application, 1st Apr., 1896
Complete Specification Left, 12th Dec., 1896-Accepted, 27th Mar., 1897
PROVISIONAL SPECIFICATION.
Improvements in or relating to Valves for Steam-hammers and
the like.
We, THOMAS PATTINSON of 39 Elmore Road, Engineer, and THOMAS SLATER
of 2 Daniel Hill Street, Engineer, both of Sheffield in the County of York, do
hereby declare the nature of this invention to be as follows:-
The object of our improvements in valves for steam-hammers and the like is to
obviate as much as possible the great waste of steam occurring with such valves as
are at present used, which cannot be kept steam-tight.
According to this invention we construct a valve of the Corliss type turned and
fitted into a barrel and perfectly steam-tight at its ends, the steam is admitted at
its back and between the turned shoulders. By ordinary lever motion or otherwise
the valve is moved forward and back or oscillated and steam is admitted into the
hammer ports and exhausted back through the aforesaid valve on the under side
or in any position between the hammer ports.
Another method of constructing a valve according to this invention is by having
a conical barrel, a conical valve of the Corliss type being fitted steam-tight there-
into. We admit the steam through an opening in the back into the interior of the
valve, whence it is admitted to either of the ports of the hammer and exhausts
through the valve between the hammer or cylinder ports.
Dated this 1st day of April 1896.
BOULT & WADE,
Agents for the Applicant.
Improvements in or relating to Valves for Steam-hammers and
the like.
We, THOMAS PATTINSON of 39 Elmore Road, Engineer, and THOMAS SLATER,
of 2 Daniel Hill Street, Engineer, both of Sheffield in the County of York do
hereby declare 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:-
The object of our improvements in valves for steam hammers and the like is to
obviate as much as possible the great waste of steam with such valves as are at
present used, which cannot be kept steam-tight.
In the accompanying drawings
Figure 1 is a side elevation partly in section and,
Figure 2 is a sectional end elevation of one form of our improved hammer
valve.
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page_text: In carrying out our invention we form a box A having a suitable hole B bored
in same to receive a turned Corliss valve C with end shoulders D; on the said
box A we preferably form a flange E for connection with the stop valve, the
steam way F entering at the back of the valve C.
On the other side of the box A we make another flange G for bolting up against the
flanged part H of the steam-hammer cylinder the said box also having suitable steam
ports K and exhausts L which admit the steam into the cylinder and discharge it
through the exhausts in the usual manner. At the ends of the valve box A we bolt
or fix any suitable covers M and N and on one cover we fix a bracket or suitable
stay O, for carrying the spindle P which engages with the valve C, by any
suitable means preferably by a T shaped head P. On the said spindle P we place
in any suitable position a crank R, for connection to a self-acting arrangement
for oscillating the valve C. The valve is fitted into the turned barrel B of the
box A and is preferably steam-tight. The steam is admitted at its back and
between the turned shoulders so that on the oscillation or the motion of the crank R
and valve C the steam is admitted into the hammer ports K and exhausted back
on the underside in any suitable position, between the hammer ports.
We do not bind ourselves solely to a parallel valve or barrel as we may construct
a taper or conical valve fitting a correspondingly tapered or coned bore.
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 :-
1. In a steam-hammer or the like, a cylindrical or tapered oscillating or rotary
valve substantially as and for the purpose described.
2. The application of Corliss or oscillating or rotary valves to steam hammers
or the like with the steam supply at the back of the valve substantially as herein-
before described.
Dated this 11th day of December 1906.
THOMAS PATTINSON.
THOMAS SLATER.
Boult & Wade.
Agents for the Applicants.