US293189A - monroe - Google Patents

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US293189A US293189DA US293189A US 293189 A US293189 A US 293189A US 293189D A US293189D A US 293189DA US 293189 A US293189 A US 293189A
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    • F16J15/00Sealings
    • F16J15/16Sealings between relatively-moving surfaces
    • F16J15/34Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member


A(No Moden) E; P. MONROE.
A INVBNTUR @M am TNESSES f ATTURNBYQS l 2o side of the stufng-box cover.
in s
`s PEcIEIcl/ITION forming part of Letters Patent No. 293,189, dated February 5, 1884.
' Appucntiontimi october e, 18er. (No maar To all whom it may concern:
Be it known that I, EDWIN PEAR MONROE,
of the city, county, and State of` New York, have invented a new and useful Improvement 5 in Metallic Rod Packings for Valve and other n Rods, of which the following is aspecication. The invention is more especiallyadapted to valve-rods for locomotives, and has for its ob-` ject to produce a more simple and readily-ad Io justedpacking than has hitherto beenin use,
\ and which is also self-adjusting to compensate for wear and for irregularities in the move-` ment ofthe rod. l
The invention consists, irst, of` an annular 15 packing-receptacle which surrounds the rod,
. and is contained in the stuffing-box. The said u receptacle has a zone-shaped or spherical cavity, in which the packing-rings are contained,
and its Outer face is in contact with the inner A tapering spiral spring abuts againstthe packing-rings,
holding them in the socket in their receptacle,
and at the saine time pressing said receptacle snugly against the inner side of the stuffing 2 5 box cover. The inner end ofthe spring abnts against a sleeve or support, which surrounds the rod and is insertedin the end of the valvechest. Said support` has an inner lining of Babbitt or other anti-frictional met-al, and the 3o saine material is interposed between the stuffihg-box cover and packing-receptacle.
In LettersA Patent Nos. 245,967 and 246,185, granted to me A ugust 23, 1881, Ihave shown and described certain features which are en i- 33 bodied in my present application. In No. 245,967 is contained the annular packing-re ceptacle bearing against the stuffing-box cover and having a zone-shaped socket to receive packingfrings, and also a spring for holding 4o the' rings and their receptacle in place. ySaidspring is, however, short and not tapered, and the bearing at its rear end is differently constructed from that shown in my present application. In No.` 246,185 there is no sepa.- rate moving` 'packing-receptacle, and various other dilferences are present, which will be obvious upon inspection.
`In the accompanying drawings, Figure l is `a vertical longitudinal section of my device. Fig.`2 is atransverse section on the `line x x.
Fig. 3 is a plan and section, and Fig. 4 is also in the device described in lieu ring.
a plan and section of the two packing-rings,`
respectively, which two rings Iprefcrably use of the sin gie In the drawings similar letters of reference indicate like parts.
. A represents the end of the valve box or chamber, through which passes the rod B. In said end isV inserted an annular support, C,
preferably of brass, and provided, as shown,
with a feather, which prevents its rotation in its seat. lining, D, of Babbitt or other anti-friction metal.
rodwhen the support C is in place in the valve box or chamber, the object being to pre-v sent a greater amount of metal at the place wherethe most wear occurs. The outer end of the support C is enlarged and a recess, E, is provided therein, which receives and aids in holding the lining D.
r 4I? isa spiral spring, made in tapering form. At each end of'said spring two of the turns are pressed together, so as to lie inA contact.
The said support has an interior.
I have shown this lining as made u thicker at that portion which, lies beneath the The object of this is to form asolid bearing or abutment at each end of the spring from the material of and integral with the spring itself.
I do not limit myself to the pressing together of but two turns of the coil` at each end, inasmuch as` this feature will in some measure depend upon the nature of the wire of which the spring is formed, springs which are of more ilexible construction generally requiring the contact of a greaternuniber than two` coilsto make a solid bearing or abut` I ment.
The outer faces of the last turns of the coils at each end of the spring, whenthe latter is made of round wire, are preferably iiattened, so as to lie in close contact with adjacent parts of the device. The larger end of the coiled spring F is placed `in contact with the support O or with the base of thestufling-box. The
smaller end of the said spring may be provided with a follower, G, as shown. follower comes in contact with and is caused by the expansive tendency of the spring F to` press upon the packing-rings II and I. The
melting-rino' I-I is shown in FiO. 3 and the i 2 29ans ways in contact withthe rod B; and since the internal bearing-surface of the receptacle J is of larger diameter at one than at the other end, the packing-rings; when pressed into the same, will quickly and easily be wedged or contracted by the said surface into closer contact with the rod. In the face of the packing-receptacle J, I form a groove, in which I place a ring of Babbitt metal, K. The face thus babbitted comes in cont-act with an opposite face or shoulder of a recess, Il, in the stuffing-box cover M.
I do not limit myself to the speciiic arrange- I ment of the Babbitt-metal ring and packingreceptacle here shown, inasmuch as the same may be varied withoutdeparting from the purpose or principle of the invention by inserting the ring .in an annular groove in theV material of the cover M, in lieu of in the face of the packing-receptacle J, the object sought being simply the application of the anti-fric tional metal to the two bearingsurfacesnamely, the surface of the packing-receptacle and the surface of the cover, which are in eontact.
The diameter of the recess L in the cover M is greater than the diameter of the packing-receptacleJ to a suflicient extent to enable the latter to have lateral play therein in all directions. The rod B passes through the recess L and the apertureN in the cover M. Said aperture is of greater diameter than the rod B, so that said rod may have lateral play therein. It will now be apparent that the packing-receptacle J being free to slide on the cover vM `in the recess L, it willfollow the rod B in any lateral deviation which said rod may take from a right-'line movement.
The stuffing-box cover I have shown as made in two parts, M and O. XVhile I do not limit myself to this particular arrangement, inasmuch asthe cover might be made in a single piece, instead of being divided, or might consist of the part M only, I consider the construction shownas advantageous, for the reason that. the insertion ofthe part O enables the cover to be conveniently lengthened. The result of this is to separate widely the packing-rings and the support C, which are the two surfaces against which the rod bears, so that that part ofthe rod which reciprocates in the support C does not also move in the packing-rings, and vice versa, and thus the wear is distributed along two portions of the length ofthe rod, instead of being received ou one and the same portion, as otherwise would be the case. I
The parts M and O of the cover are secured to the valve box or chamber by bolts Q, and the part M is provided with an internal brass lining, l?, the function of which is to provide a wearing-surface for cooperation with the periphery of the packing-receptacle J. Around the parts of the cover and between the ianges thereon I place a sheet-iron envelope or jacket, R, which protects and gives a neat iinis to the exterior of the stuffing-box.
It will be obvious that any lateral deviation of the rod B from a right-line movement cannot impair the tightness of the packing bearing thereupon, for the reason that the packing and the parts in relation therewith areY capable of automatically adjusting themselves in exact accordance with the amount of deviation taking place, and this effected, first, by the wearing of the babbitt lining the support C conformably to the new direction of motion of the rod; second, by the self-adjustment of the packing-rings through their rocking or turning in their spherical seat as they follow the rod in its change in `lateral position; and, third, by the self-adjustment of the packingreceptacle J, which also moves laterally with the rod. I thus obtain a metallic packing` of simple construction which is self-adjusting, and thus preventive ofthe large waste of steam due to the wear and leakage of other Vforms of packing in common use.
I claim as myinventionl. The combination of the valve box or chamber A, rod B, support C, and lining D, substantially as described.
2. The combination, with the packingsreceptacle 'and the stuiing-box cover, having bearing-surfaces arranged in juxtaposition, so as to allow ofthe sliding of the former upon the latter, of the ring of Babbitt or other anti-frictional metal inserted in the face of the pack-- ing-receptacle, so as to move therewith and bear upon the face of the stuffing-box cover, substantially asv described.
3. In a metallic packing for valve or other rods, the combination, with the packing-rings, of a tapering coiled metallic spring having at each end two or more of its coils or turns brought in contact, to form abutments or bearings, substantially as described.
4. The combination of the valve box or chamber A, support C, spring F, follower G, packing-rings H I, packing-receptacle J, and covers M O, substantially as described.
In a metallic packing for valve or other rods, the combination of the packing-reeepta-- cle J and the stuffing-box cover M, provided with the brass .lining l?, substantially as described. v
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2424190A (en) * 1943-04-01 1947-07-15 Filer & Stowell Co Stuffing box

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2424190A (en) * 1943-04-01 1947-07-15 Filer & Stowell Co Stuffing box

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