Improvements in Straight Way Valves.
Year: 1891

page_text: Date of Application, 14th Apr., 1891-Accepted, 30th May, 1891
COMPLETE SPECIFICATION.
Improvements in Straight Way Valves.
I EDMUND LUNKENHEIMER of 77 Johnston Building Cincinnati, Ohio United
States of America, Manufacturer. 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 :-
My invention relates to what may be called oscillating valves for the reason
that the passage between the pipe connections arranged in line with each other. is
closed and opened by a pair of valve disks operated by an Oscillating or rocking
spindle or valve stem which swings them into and out of line with the pipe
connections. The rocking spindle is journalled in bearings parallel with the line
of the pipe connections and the valve disks move at right angles to such line.
When swung into line with the connections to close the valve they fit snugly
against seats at the inner sides of said connections.
In the accompanying drawings
Fig. 1 is a plan view of the valve.
cap
Fig. 2 is a top view of the valve shell shown in Fig. 1 with the removed.
Fig. 3 is a vertical section on the dotted line 33 in Fig. 1 looking in the direction
of the arrow at right angles to said line.
Fig. 4 is a vertical section on the line 44 in Fig. 1 looking in the direction of
the arrow at right angles to said line.
Fig. 5 is a perspective view of the two valve disks.
Fig. 6 represents details of the spindle opening in the valve shell and the
friction ring adapted to fit therein.
Fig. 7 is a perspective view of the spindle.
The same letters of reference are used to indicate identical parts in all the
figures.
The valve shell with the exception of the cap is cast in one piece and consists of
the chamber A, pipe connections BB and tubular portion C.
The pipe
connections are in line with each other as is usual in this style of valves and are
interiorly threaded to receive the pipes. The open end of the valve shell body
through which the discs are inserted is closed by a cap D bolted to the body of
the shell.
The valve discs E E' are two in number and adapted to fit and be forced against
inclined seats FF in the body of the shell. The lower disc E' has at one side
an integral carrier E by which it is supported upon a rocking spindle G the lower
rectangular end of the fatter passing through a similar shaped opening in the dise
carrier, so that the rocking or oscillating movements of the spindle will be
communicated to the valve disc to swing it into and out of line with the pipe
connections to close and open the valve. The lower end of the spindle rests upon
the shell at the bottom of the tubular portion C and is provided with a pin fitting
a seat in the shell to hold the spindle true to its bearings.
The upper disc E is not supported by the spindle as is the lower one, but is
supported entirely by the lower disc itself. There is a bearing II between the two
disks at their centres and on its side next the spindle the upper disc is provided
with a
pendent pin I extending loosely through a hole in the carrier E² of the
lower disc. The bearing H and loose connection by the pin I allow the discs
sufficient play relatively to each other to permit them to properly adjust themselves
to the inclined seats FF when the valve is closed. At a point opposite or nearly
opposite the pin the upper disc is provided on its under side with a lug J which
fits loosely between two lugs K K on the upper side of the lower disc.

page_text: The purpose of this connection of the two discs by the lugs J K K is to prevent
the upper disc becoming displaced from its proper position on the lower disc when
the valve is opened or closed.
The valve spindle G is provided with an integral friction collar L having a
bevelled upper side. Fitting snugly around the orlindrical portion of the spindle
above the friction collar is a sorew pdag M sorewed into the spindle opening in the
shell and affording the upper bearing for the spindle.
Surrounding the spindle immediately above the collar L the two bearing surfaces
being preferably ground is a ring N Figure 6. This ring has ears upon its
opposite sides which fit within grooves in the sides of the opening Fig. 6 and
prevent the ring turning. Between the ring and the lower side of the screw
plug M is interposed suitable packing O.
By tightening up the screw plug M the friction ring N may be made to bear
against the collar L and likewise the bottom of the spindle against the shell with
any desired degree of pressure so that greater or less resistance may be offered to
the turning of the spindle. When the spindle is turned by the handle P applied to
its upper end to open the valve to any degree desired the discs will remain at that
point when the handle is released and will be held there against ordinary shocks or
Jars.
The non revoluble ring N prevents the movement of the collar L and spindle
being communicated to and loosening the plug M; it will of course be understood
that it may be held from turning by other means than by the cars on it and the
grooves in the spindle openings.
As before stated the connection of the discs E E' by the lugs J K K is only for
the purpose of preventing displacement of the upper disc and may be dispensed
with where other means are employed for the purpose. Thus a polygonal lug and
hole may be substituted for the round pin 1 and the round hole in the carrier E
which would render the connection by the lugs J K K unnecessary.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed declare that what I
claim is.
1. The combination of the shell having the two inclined seats FF' the rocking
spindle G parallel with the line of the pipe connections, the valve disc E
supported on said spindle by its integral carrier E' and co-operating with the
inclined seat F the non revoluble disc E supported wholly by the disc E' and
co-operating with the inclined seat F and a central bearing H between the two
discs substantially as and for the purpose described.
2. In a valve such as described the combination of the shell having the two
inclined seats FF the rocking spindle G parallel with the line of the pipe
connections the valve disc E' supported on said spindle by its integral carrier E
and co-operating with the inclined seat F the non revoluble disc E supported by
the disc E and co-operating with the inclined seat F a central bearing If between
the two discs and an eccentric connection between them for preventing displace-
ment of the disc E substantially as described.
3. In a valve such as described the combination of the shell having the two
inclined seats FF the rocking spindle G parallel with the line of the pipe
connections, the valve dise E supported on said spindle by its integral carrier E
and co-operating with the inclined seat F the non revoluble dise E supported by
the disc and co-operating with the inclined sent F a central hearing H between
the two discs, an eccentric connection between the discs by the pin on one, and
corresponding hole in the other and a second eccentric connection between them as
by the lugs JK K substantially as described.
4. In a valve such as described the combination of the shell, the rocking
spindle G provided with the friction collar I, the non revoluble friction ring N
bearing upon said collar, the screw plug M and the packing O interposed

page_text: between the plug M and the ring N substantially as and for the purpose
described.
Dated this 14th day of April 1891.
HERBERT & Co.,
18, Buckingham Street, Strand, W.C., Agents to Applicant.