US168189A - Improvement in piston - rod stuffing- boxes - Google Patents
Improvement in piston - rod stuffing- boxes Download PDFInfo
- Publication number
- US168189A US168189A US168189DA US168189A US 168189 A US168189 A US 168189A US 168189D A US168189D A US 168189DA US 168189 A US168189 A US 168189A
- Authority
- US
- United States
- Prior art keywords
- piston
- boxes
- improvement
- stuffing
- cup
- 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
- 238000012856 packing Methods 0.000 description 6
- 210000004907 gland Anatomy 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/26—Sealings between relatively-moving surfaces with stuffing-boxes for rigid sealing rings
- F16J15/28—Sealings between relatively-moving surfaces with stuffing-boxes for rigid sealing rings with sealing rings made of metal
Definitions
- Figure l represents avertical central section ⁇ on the line c c, Fig. 2, of my improved stufng-box for piston-rods, and Fig. 2 represents a top view of the same.
- My invention relates to an improved stuffing-box for the piston-rods of steam-cylinders, being constructed in such a manner at the cylinder-heads as to be seif-adjustable, without requiring the continual screwing up ofthe i box to prevent theleaking of the same.
- the packing may be used as long as a single circular strand remains around the piston-rod, it keeping the stuffing-box perfectly steamtight.
- This invention is an improvement on that described in Letters Patent No. 154,613, and relates to the arrangement of a conically-.recessed cup and a spring, the latter causing said cup to'act on the packingagaiust or oppositely ⁇ to the steam issuing from the pistoncylinder, inthe mannerphereinafter described..
- A represents a cylindrical cup, which is fitted accurately to the pistonrod, so as to hug the same, and made of conically tapering shape toward the packing, placed in the stuffing-box of the cylinder-head in the usual manner.
- the cup A is applied to the stuffing-box of the cylinder head by a gland, B, that is screwed by strong bolts to the ange of the same, and rigidly seated thereon.
- shoulder or liange, B' at the end of gland B, retains the cup in such position that its tapering end projectsinto and slides in the stuffingbox.
- a spiral spring, C is interposed between the shoulder B and an outer collar or rim, A', of the cup, being of such strength that it presses the cup tightly on the packing as soon as the steam is shut off, but does not overcome the pressure of the steam, which causes the packing to press against the tapering or concave surface of thecup, and hug thereby the piston or valve-stem tightly, preventing the blowing through of the steam after the packing' gets worn and does not entirely fill the stuffing-box.
- the interposition of the packing prevent-s the speedy corrosion of the spring by cutting oft' access of steamto it.
- the arrangement of parts also enables the flange B to be fitted loosely to the piston-rod, thus avoiding friction at that point.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Description
`UNITED STATES .PATENT OFFICE.
JOSEPH M. SEARLE, OF STANHOPE, NEW JERSEY.
lMPROVEMENT IN- PlSTO-N-ROD STUFFlNG-BOXES.
Specification forming part of Letters Patent No. 168, 189, dated September28, 1875 application filed July 31, 1875.
To all whom it may concern:
Beit known that I,JosEPH M. SEARLE, of Stanhope, in the county of Sussex and State of New Jersey, have invented a new and Improved Piston-Rod Stuffing-B0X, ofwhich the following is a speciication:
In the accompanying drawing, Figure l represents avertical central section `on the line c c, Fig. 2, of my improved stufng-box for piston-rods, and Fig. 2 represents a top view of the same.
Similar letters of :reference indicate corresponding parts.
My invention relates to an improved stuffing-box for the piston-rods of steam-cylinders, being constructed in such a manner at the cylinder-heads as to be seif-adjustable, without requiring the continual screwing up ofthe i box to prevent theleaking of the same. The packing may be used as long as a single circular strand remains around the piston-rod, it keeping the stuffing-box perfectly steamtight.
This invention is an improvement on that described in Letters Patent No. 154,613, and relates to the arrangement of a conically-.recessed cup and a spring, the latter causing said cup to'act on the packingagaiust or oppositely `to the steam issuing from the pistoncylinder, inthe mannerphereinafter described..
In the drawing, A represents a cylindrical cup, which is fitted accurately to the pistonrod, so as to hug the same, and made of conically tapering shape toward the packing, placed in the stuffing-box of the cylinder-head in the usual manner.
The cup A is applied to the stuffing-box of the cylinder head by a gland, B, that is screwed by strong bolts to the ange of the same, and rigidly seated thereon. shoulder or liange, B', at the end of gland B, retains the cup in such position that its tapering end projectsinto and slides in the stuffingbox. A spiral spring, C, is interposed between the shoulder B and an outer collar or rim, A', of the cup, being of such strength that it presses the cup tightly on the packing as soon as the steam is shut off, but does not overcome the pressure of the steam, which causes the packing to press against the tapering or concave surface of thecup, and hug thereby the piston or valve-stem tightly, preventing the blowing through of the steam after the packing' gets worn and does not entirely fill the stuffing-box.'
The interposition of the packing prevent-s the speedy corrosion of the spring by cutting oft' access of steamto it. The arrangement of parts also enables the flange B to be fitted loosely to the piston-rod, thus avoiding friction at that point.
What I claim is- The arrangementof the spring-encircled cup A, with its conical-recessed end toward the LT. M. sEAELE.
Witnesses:
J. D. LAURENCE, F. C. WILKINSON.
An interior'
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US168189A true US168189A (en) | 1875-09-28 |
Family
ID=2237598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US168189D Expired - Lifetime US168189A (en) | Improvement in piston - rod stuffing- boxes |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US168189A (en) |
-
0
- US US168189D patent/US168189A/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US128906A (en) | Improvement in stuffing-boxes for piston-rods | |
| US943169A (en) | Packing for stuffing-boxes. | |
| US207668A (en) | Improvement in packing valve-stems | |
| US163796A (en) | Improvement in stuffing-boxes | |
| US866062A (en) | Stuffing-box. | |
| US712966A (en) | Stuffing-box for steam-engines. | |
| US745908A (en) | Piston-rod packing. | |
| US396120A (en) | William | |
| US343003A (en) | Half to theodoee s | |
| US369869A (en) | Ebastus g | |
| US346378A (en) | John loftus | |
| US131355A (en) | Improvement in packings for piston-rods | |
| US350116A (en) | Metallic packing for piston-rods | |
| US123097A (en) | Improvement in stuffing-boxes | |
| US1072496A (en) | Air-pressure pump. | |
| US792411A (en) | Throttle-valve packing. | |
| USRE7528E (en) | Improvement in piston-packings | |
| US206139A (en) | Improvement in stuffing-boxes for steam-engines | |
| US687276A (en) | Piston for steam or other engines. | |
| US664491A (en) | Lubricating device for piston-rods. | |
| US1284538A (en) | Stuffing-box. | |
| US208973A (en) | Improvement in metallic packing for piston-rods | |
| US492769A (en) | Cylinder for power-hoists | |
| US252957A (en) | And boston | |
| US191892A (en) | Improvement in stuffing-boxes for steam-engines |