US291770A - peatt - Google Patents

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Publication number
US291770A
US291770A US291770DA US291770A US 291770 A US291770 A US 291770A US 291770D A US291770D A US 291770DA US 291770 A US291770 A US 291770A
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Prior art keywords
valve
flap
spindle
stop
pratt
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Expired - Lifetime
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/20—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7898—Pivoted valves
    • Y10T137/7903—Weight biased

Definitions

  • Figure 1 is a view in central section of my improvement as embodied in a straight-way valve.
  • Fig. 2 is a view in central section of same in an angle-valve.
  • My invention relates to the class of fluidvalves in which a swinging flap is used.
  • valve disk or packing any form of valve disk or packing may be used, although the drawings show the flap and rotary disk common to special forms.
  • body a having valve-seat b, swinging flap 0, having stop 0, with the curved sur face, and the screw-spindle e, the said curved surface forming a bearing for the foot of the screw-spindle 6, whereby the play of the flap is limited, all substantially as described.

Description

R. N. PRATT.
(No Model.)
STEAM VALVE.
No. 291,770. Patented Jan; 8, 1884.
FFICEs ATENT RUFUS N. PRATT, OF HARTFORD, CONNECTICUT, ASSIGNOR TO THE PRATT 8v CADY COMPANY, OF SAME PLACE.
STEAM-VALVE.
SPECIFICATION forming part of Letters Patent No. 291,770, dated January 8, 1884.
Application filed March 27, 1883. (No model.)
To aZZ whom it may concern:
Be it known that I, RUFUS N. PRATT, of Hartford, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Steam-Valves; and I do hereby declare that the following is a full, clear, and exact description thereof, whereby a person skilled in the art can make and use the same, reference being had to the accom- 1o panying drawings, and to the letters of reference marked thereon.
Like letters in the figures indicate the same parts.
Figure 1 is a view in central section of my improvement as embodied in a straight-way valve. Fig. 2 is a view in central section of same in an angle-valve.
My invention relates to the class of fluidvalves in which a swinging flap is used; and
it consists in the peculiar and special combination and arrangement of parts, by which I secure in one body a check and stop valve back of the flap a rib or stop, 0, is formed, so curved as to present a bearing to the foot of 3 5 the spindle, under its center and substantially in the line of its axis, in all parts of the path of the flap in swinging. By screwing down the spindle, as shown in Fig. 1, the valve is securely closed and forms a stop-valve; but 0 by raising the spindle, as shown in Fig. 2 and in dotted lines in Fig. 1, a check-valve is formed.
In my improved valve-body any form of valve disk or packing may be used, although the drawings show the flap and rotary disk common to special forms.
I claim as my invention 1. In a check and stop valve, in combination, body a, having valve-seat b, swinging flap 0, having stop 0, with the curved sur face, and the screw-spindle e, the said curved surface forming a bearing for the foot of the screw-spindle 6, whereby the play of the flap is limited, all substantially as described.
2. In a check and stop valve, in combination, the screw-spindle and the swinging flap, bearing a curved stop, the surface of which at all points in the path of the flap in swinging bears on the spindle in line of its axis, all sub- 60 stantially as described.
RUFUS N. PRATT.
WVitnesses:
CHAS. L. BURDETT, 7M. H. MARsH.
US291770D peatt Expired - Lifetime US291770A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2602630A (en) * 1946-09-25 1952-07-08 Walter S Petschke Valve
US3190611A (en) * 1963-02-27 1965-06-22 Atwood & Morrill Co Inc Check valve with positive closing means
US20120292547A1 (en) * 2010-02-11 2012-11-22 Kierat Jaroslaw Actuating means for a valve, in particular a wastegate, of an exhaust gas turbocharger

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2602630A (en) * 1946-09-25 1952-07-08 Walter S Petschke Valve
US3190611A (en) * 1963-02-27 1965-06-22 Atwood & Morrill Co Inc Check valve with positive closing means
US20120292547A1 (en) * 2010-02-11 2012-11-22 Kierat Jaroslaw Actuating means for a valve, in particular a wastegate, of an exhaust gas turbocharger
US9145825B2 (en) * 2010-02-11 2015-09-29 Ihi Charging Systems International Gmbh Actuating means for a valve, in particular a wastegate, of an exhaust gas turbocharger

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