US 792514 A
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Description (OCR text may contain errors)
PATENTBD JUNE 13, 1905.
HI. GIILL. METALLIC PACKING RING.
APPLICATION FILED MAR.16, 1905.
Nirn STATES Patented June 13, 1905.
HARRY GILL, OF CHICAGO, ILLINOIS.
SPECIFICATION forming part of Letters Patent No. 792,514, dated June 13, 1905. Application filed March 16, 1905. fierial No. 250,471.
To all 20700711 7'15 may concern.
Be it known that I, HARRY GILL, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful Improvements in Metallic Packing-Rings, of which the following is a specification.
This invention relates to metallic packingrings for piston-rods, plungers of pumps, and
like engineering construction; and the object thereof is to provide an interchangeable split packing ring substantially rhomboidal in cross-section, of substantially cone shape, and having a V-shaped cut-away portion and by such construction enabling the necessary takeup to obtain a tight rod, plunger, or the like to be had by the compressing of the ring and the sliding of the ends of the ring toward each other without overlapping.
The invention further aims to provide a metallic packing-ring having a V-shaped cutaway portion substantially conical in contour, rhomboidal in cross-section, durable, interchangeable, efficient in its use, readily introduced and removed, and comparatively inexpensive to manufacture.
ith the foregoing and other objects in view the invention resides in the construction of the split metallic packing-ring hereinafter more specifically described, illustrated in the accompanying drawings, which form a part of this specification, and particularly pointed out in the claims hereunto appendet.
In describing the invention in detail reference is had to the accompanying drawings, wherein like reference characters denote corresponding parts throughout the several views, and in which- Figure 1 is a sectional elevation of a stuffing-box, showing the adaptation of a metallic packing constructed in accordance with this invention. Fig. 2 is a perspective view of a metallic packing-ring constructed in accordance with this invention; and Fig. 3 is a section on the line 3 3, Fig. 2, showing the rhomboidal configuration of the ring in crosssection.
A packing-ring in accordance with this invention may be constructed of any suitable metal or metals, preferably from an admixture of copper, tin, antimony, and lead. in any desirable proportions,- which is machined or otherwise formed into an interchangeable and compressible split composite metallic packing-ring substantially conical in contour having a V-shaped cut-away portion and rhomboidal in cross-section. l
The ring, which is imperforate, is indicated by the reference character 1 and, as before stated, is substantially conical' in contour,
rhomboidal in cross-section, as shown in Fig.-
3, and is slitted therethrough, so as to provide a V-shaped cut-away portion converging from the outer to the inner end thereof, as indicated by the reference character 2, said V- shaped cutaway portion clearly shown in Fig. 2.
Owing to the constructing of the ring in a conical manner, when a plurality of the rings are used they are readily interchangeable, and owing to providingthe ring with the V-shaped cut-away portionit is very readily placed in position around the part to be packed. A further function derived from the providing of the cut-away portion is that when the ring is compressed there will be no overlapping of the ends of the ring, which would be the case if the slit or cut-away portion was of different contour. Then, again, it enables the ends of the ring to slide or move toward one another during the compression of the ring in such a manner that there can be no overlapping of the ends, as the edges of the ends will move in such a direction as to prevent such overlapping. Owing to constructing the ring rhomboidal in cross-section, an excellent hearing for both the side of the stuffing-box and piston-rod or plunger is obtained, as will be readily seen by reference to Fig. 1, as the outer edge and inner edge of the ring snugly surround the piston-rod or plunger and engage the inner face of the stufling-box. Consequently it insures an absolutely perfect joint. It will furthermore 'be stated that owing to providing the ring with the V-shaped cut-away portion or slit the necessary take-up can be had without any danger of the ends of the ring overlapping, and thereby insuring an absolutely perfect joint.
Referring to Fig. 1 of the drawings, 3 denotes the stuffing-box, having a boss 4 supported in the lower end thereof. a gland extending into the top of the box. 6 denotes ad justing-screws for the gland, which engage in the ofi'sets 7 and 8, carried, respec- 5 denotes the outer to the inner end, thereby splitting the ring.
2. An impert'orate metallic packing-ring substantially conical in contour, rhomboidal in cross-section and having a ii-shaped split converging from its outer to its inner end.
3. A metallic packing-ring substantially conical in contour, rhomboidal in cross-section and having a \I-shaped split extending entirely therethrough, said split converging from its outer to its inner end.
In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.
H ARRY GILL.
Osomz M. STnrsoN, PETER PARKE.