US477608A - Rufus n - Google Patents
Rufus n Download PDFInfo
- Publication number
- US477608A US477608A US477608DA US477608A US 477608 A US477608 A US 477608A US 477608D A US477608D A US 477608DA US 477608 A US477608 A US 477608A
- Authority
- US
- United States
- Prior art keywords
- gate
- seats
- valve
- grooves
- rufus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000010276 construction Methods 0.000 description 6
- 210000003660 Reticulum Anatomy 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 240000002027 Ficus elastica Species 0.000 description 2
- 210000004907 Glands Anatomy 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 229920000591 gum Polymers 0.000 description 2
- 229920001195 polyisoprene Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
Images
Classifications
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
- F16K31/508—Mechanical actuating means with screw-spindle or internally threaded actuating means the actuating element being rotatable, non-rising, and driving a non-rotatable axially-sliding element
Definitions
- the invention relates to the class of straight way gate-valves having renewable seats; and the object of the invention is to provide a valve of this class which shall be cheap in construction and have the best form of cheap and durable seats, which can be readily placed in position or removed therefrom when they become so worn that the valve leaks, which seats are interchangeable and occupy but little space, so that a number can be kept on hand in order that the valve may be repaired or renewed at a slight expense without being removed from its connections.
- Figure 1 is a longitudinal vertical section of the valve.
- Fig. 2 is a transverse vertical section of the body.
- Fig. 3 is a plan of the body, and
- Fig. 4 is a detail enlarged section of one of the seats.
- the letter a indicates the body of the valve, which is cast to shape of any suitable metal, with a vertical oblong gatechamber a, from which ports a open to the ends of the body that are threaded or provided with flanges a for attachment to the pipes or mains of the system in which the valve is to be located when in use.
- a bonnet 1) secured to the top of the body by bolts or screws,
- a channel or groove c is formed, preferably by inserting a cnttin g or boring tool into the interior through the ports.
- Rings or annular seats f slightly thicker than the depth of the grooves, so they will project beyond the metal, are loosely placed in the grooves e. These seats are formed provided with annular Serial No. 401,468. (No model.)
- Openings g are made in the walls of the wedge-chamber into the grooves e back of the seats to enable the edge of a tool to be inserted behind the seats to assist in their removal.
- the packings at first fit loosely in the grooves in the gate-chamber; but when in use they swell and tightly fit and hold in the grooves.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
Description
R. N. PRATT.
GATE VALVE.
(No Model.)
Patented June 21 l d of any common construction.
TATES ATENT 510 Fries.
RUFUS N. PRATT, OF HARTFORD, CONNECTICUT, ASSIGNOR TO THE PRATT dz CADY COMPANY, OF SAME PLACE.
GATE-VALVE.
SPECIFICATION forming part of Letters Patent No. 477,608, dated June 21, 1892.
Application filed August 3, 1891- To all whom it may concern.-
Be it known that I, RUFUS N. PRATT, a citizen of the United States, residing at Hartford, in the county of Hartford and State of Connecticut, have invented certain new and usefullmprovements in Gate-Valves,'of which the following is a full, clear, and exact specification.
The invention relates to the class of straight way gate-valves having renewable seats; and the object of the invention is to provide a valve of this class which shall be cheap in construction and have the best form of cheap and durable seats, which can be readily placed in position or removed therefrom when they become so worn that the valve leaks, which seats are interchangeable and occupy but little space, so that a number can be kept on hand in order that the valve may be repaired or renewed at a slight expense without being removed from its connections.
Referring to the accompanying drawings,
Figure 1 is a longitudinal vertical section of the valve. Fig. 2 is a transverse vertical section of the body. Fig. 3 is a plan of the body, and Fig. 4 is a detail enlarged section of one of the seats.
In the views the letter a indicates the body of the valve, which is cast to shape of any suitable metal, with a vertical oblong gatechamber a, from which ports a open to the ends of the body that are threaded or provided with flanges a for attachment to the pipes or mains of the system in which the valve is to be located when in use. A bonnet 1), secured to the top of the body by bolts or screws,
supports in a suitably-packed gland Z) a threaded spindle c, that raises or lowers a gate In the inte rior walls of the gate-chamber, around each port and concentric therewith, a channel or groove c is formed, preferably by inserting a cnttin g or boring tool into the interior through the ports. Rings or annular seats f, slightly thicker than the depth of the grooves, so they will project beyond the metal, are loosely placed in the grooves e. These seats are formed provided with annular Serial No. 401,468. (No model.)
of a composition of india-rubber gum and asbestus fiber vulcanized and solidified under heat and pressure, the peculiar nature of this composition being that when the valve is in use for steam or water the seats will soften slightly and become more elastic, making a closer fit against the gate. They will also absorb moisture and swell so as to stick fast into 5 5 the groove and not drop out when" the gate is raised; but when not in use they will harden and contract, so as to be easily removed from the grooves. The front faces of the seats are preferably made rounding or a little wedgeshaped, so that a narrower bearing-surface is provided, against which the gate has to force in closing, the gate making a closer fit against the narrow surface, and the narrow edge, being more elastic, lengthens the life of the seat. 6 5 To make the seats more elastic and more easily compressible, grooves f may be made in the back face of the ring, as shown.
Openings g are made in the walls of the wedge-chamber into the grooves e back of the seats to enable the edge of a tool to be inserted behind the seats to assist in their removal. The packings at first fit loosely in the grooves in the gate-chamber; but when in use they swell and tightly fit and hold in the grooves.
WVith the construction described a straightway gate-valve having a round water-way is cheaply produced and provided with seats which are durable, efficient, and simple to in- Se sert or remove when they become worn.
I claim as my invention- A straight-way gate-valve consisting of a body, a bonnet secured thereto and bearing a spindle supporting a gate, said body being grooves surrounding the ports, mortises opening to the back of the grooves from the interior of the gate-chamber, and annular seats loosely placed in the grooves, substantially as specified.
RUFUS N. PRATT.
Witnesses:
ARTHUR H. BRONSON, HARRY R. WILLIAMs.
Publications (1)
Publication Number | Publication Date |
---|---|
US477608A true US477608A (en) | 1892-06-21 |
Family
ID=2546464
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US477608D Expired - Lifetime US477608A (en) | Rufus n |
Country Status (1)
Country | Link |
---|---|
US (1) | US477608A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2877780A (en) * | 1956-10-19 | 1959-03-17 | Beckman & Whitley Inc | Quick release valve |
US2886284A (en) * | 1955-09-13 | 1959-05-12 | Wheatley Charles | Flanged sealing ring |
US6698718B2 (en) | 2001-08-29 | 2004-03-02 | Wafermasters, Inc. | Rotary valve |
-
0
- US US477608D patent/US477608A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2886284A (en) * | 1955-09-13 | 1959-05-12 | Wheatley Charles | Flanged sealing ring |
US2877780A (en) * | 1956-10-19 | 1959-03-17 | Beckman & Whitley Inc | Quick release valve |
US6698718B2 (en) | 2001-08-29 | 2004-03-02 | Wafermasters, Inc. | Rotary valve |
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