US494818A - Metallic rod-packing - Google Patents
Metallic rod-packing Download PDFInfo
- Publication number
- US494818A US494818A US494818DA US494818A US 494818 A US494818 A US 494818A US 494818D A US494818D A US 494818DA US 494818 A US494818 A US 494818A
- Authority
- US
- United States
- Prior art keywords
- packing
- metallic rod
- receptacle
- follower
- cover
- 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
- 210000004907 Glands Anatomy 0.000 description 4
- 210000000038 chest Anatomy 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 230000036536 Cave Effects 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/08—Wipers; Oil savers
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/18—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
- F16J15/184—Tightening mechanisms
Definitions
- FIG. 2 of the aforesaid patent there is shown a packing box, the inner face of the cover of which has a concave surface. against this shoulder is a ring with a convex outer and a4 plain inner surface. Bearing upon this inner surface is a packing receptacle,havinga plain front face and tapering recess in which are placed packing rings.
- a follower which bears upon the packing rings, being constantly pressed forward by aspring.
- Fig. l is a longitudinal sectional view of a construction embodying my improvements
- Fig. 2 is an end view of the same.
- the end wall A, of the valve chest has an Seated y opening, through which the stem l5, plays, a gland a, being seated in said opening.
- a tapering coiled spring b bears at its rear against said gland.
- the packing box cover C is suitably bolted on the end wall A, a wire gasket e, seated in a recess in the rear of cover insuringa steam tight bearing for the latter. Vivithin the cover,
- a con-V cave shoulder receiving the bearing ring D, con vexed on its front side, and having a plane surface at its rear.
- the cover chamberji is the packing ring receptacle E, having a hat ,front face bearing against the ring D, and provided with a tapering recess in which the packing rings g, h, i, of corresponding shape are located.
- a follower F extends for a short distance within the receptacle E. This said follower is normally forwardly pressed by a cup sleeve I, the head .s of which bears against the follower.
- the said sleeve I contains that portion of the tapering sprin g b, which extends into the cover chamber; the forward coil of said spring being seated against the inner side of head s, of the sleeve.
- the transversediameter of the cover chamber' is greater thanthat of the opening in the wall of the valve chest, so that a portion of said wall projects to present a shoulder' 7.9.
- the spring pressed cup sleeve I normally causes the followerto hold the packing rings snugly with in the receptacle, and thus secures a steam tight packing for the rod.
- This receptacle E is freely movable in all directions within the cover chamber, and this capabilityin connection with the ball bearing adorded by the ring D against which it bears, enables it to automatically accommodate itself to variations in the stroke alignment of the stein, due to wear or otherwise.
Description
(Hmmm s. P. LONG.
METALLIC ROD PACKING.
No. 494,818. Patented Apr. 4, i893;
UNITED STATES PATENT OFFICE.
SAMUEL F. LONG, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE UNITED STATES METALLIC PACKING COMPANY, OF PENNSYLVANIA.
METALLIC ROD-PACKING.
SPECIFICATION forming part of Letters Patent No. 494,818, dated .April 4, 1893.
Application iled November 4, 1892. Serial Na 450,980. (No model.)
To a/ZZ whom t may concern,.-
Be it known that I, SAMUEL F. LONG, a citi- -zen of the United States, residing at the city issued Letters Patent No. 9,365, dated August 31,1880, and granted. to Martin Schneble,that
is, so far as the packing itself is concerned.1
In Figure 2 of the aforesaid patent, there is shown a packing box, the inner face of the cover of which has a concave surface. against this shoulder is a ring with a convex outer and a4 plain inner surface. Bearing upon this inner surface is a packing receptacle,havinga plain front face and tapering recess in which are placed packing rings. In Fig. l of the patent, there is shown a follower which bears upon the packing rings, being constantly pressed forward by aspring.
In a companion application of mine, filed, Novemhere, i892, Serial No. 450,979 I have similarly referred to the construction disclosed in said re-issned patent, and have pointed out more at length certain objections incident to said patented arrangement. It will be snfticient for present vpurposes to direct attentionto the fact that in said patent, the follower is shown of such coniguration and disposition that it is liable to work beneath the end edge of the receptacle and thus become inoperative for its primary purpose to wit, forwardly pressing the packing rings. The liability referred to is increased by the fact that the follower has considerable transverse play on the rod, and can be canted or tilted to engage one side of the receptacle.
To avoid the objections referred to in the foregoing, I have devised certain improvements, the subject matter of the present case showing the same adapted for use in connection with metallic packing for valve stems.
In the accompanying drawings forming part of this specification, Fig. l, is a longitudinal sectional view of a construction embodying my improvements, and Fig. 2, is an end view of the same.
The end wall A, of the valve chest has an Seated y opening, through which the stem l5, plays, a gland a, being seated in said opening. A tapering coiled spring b, bears at its rear against said gland.
The packing box cover C, is suitably bolted on the end wall A, a wire gasket e, seated in a recess in the rear of cover insuringa steam tight bearing for the latter. Vivithin the cover,
adjacent to the front opening thereof, is a con-V cave shoulder, receiving the bearing ring D, con vexed on its front side, and having a plane surface at its rear. i
Nithin the cover chamberjiis the packing ring receptacle E, having a hat ,front face bearing against the ring D, and provided with a tapering recess in which the packing rings g, h, i, of corresponding shape are located. A follower F, extends for a short distance within the receptacle E. This said follower is normally forwardly pressed by a cup sleeve I, the head .s of which bears against the follower. The said sleeve I, contains that portion of the tapering sprin g b, which extends into the cover chamber; the forward coil of said spring being seated against the inner side of head s, of the sleeve.
By reference to Fig. l it will be noted that the transversediameter of the cover chamber' is greater thanthat of the opening in the wall of the valve chest, so that a portion of said wall projects to present a shoulder' 7.9. The spring pressed cup sleeve I, normally causes the followerto hold the packing rings snugly with in the receptacle, and thus secures a steam tight packing for the rod. This receptacle E, is freely movable in all directions within the cover chamber, and this capabilityin connection with the ball bearing adorded by the ring D against which it bears, enables it to automatically accommodate itself to variations in the stroke alignment of the stein, due to wear or otherwise.
In my said companion application, I have shown and described a follower extending into the receptacle and pressing on the packing rings, said follower being provided with a lat-
Publications (1)
Publication Number | Publication Date |
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US494818A true US494818A (en) | 1893-04-04 |
Family
ID=2563658
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US494818D Expired - Lifetime US494818A (en) | Metallic rod-packing |
Country Status (1)
Country | Link |
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US (1) | US494818A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20180171646A1 (en) * | 2016-12-20 | 2018-06-21 | Clarkwestern Dietrich Building Systems Llc | Finishing accessory with backing strip |
-
0
- US US494818D patent/US494818A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20180171646A1 (en) * | 2016-12-20 | 2018-06-21 | Clarkwestern Dietrich Building Systems Llc | Finishing accessory with backing strip |
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