US984836A - Packing. - Google Patents

Description

S, P, MORRISON (Q: VAN DOLAH MORRISON.

PACKING.

APPLlOATION FILED OCT. 25, 191Dv Patented Feb. 21, 1911 v /A/l/E/VTORS wk T/VE-SSES. 6%

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SEPTIldUS l. MORRISON, OF STUTIGA'RT, AEKANSAS, AND VAN DOE-AH MORRISQN, OF

IN'TDIANA POLIS, INDIANA.

PACKING.

To all whom it may concern:

Be it known that we, Snr'rmrrs l. Monmson, a citizen of the hinted ZiiZIliJSJQSHlUlQ at Stuttgart, in the county of Arkansas and State of Arkansas. and VAN Donut lvl'onni- 6 son, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented certain new and useful Improvements in Packing, of which the-following is a specification;

lhis invention relates to improvements in packing for pistons, stutfing-boxes, and for all mechanisms wherein an air. watt-r, o l, steam, ammonia, or gas-tight joint is desired around a reciprocating or rotary portion.

The invention belongs to the same class of packing as that patented to Scptinuis l. Morrison, by United States Patent No. 926,676, issued June 29, 1909, which packing, as experience has demonstrated, is ini practicable for p ston-rods and other sin'lilar shaft-like reciprocating parts which. are apt to be sprung. or h'llllflHl or bent out ol' straight alinemen't, requiring the use of a more or less elastic packing Hilbtittlllfl. which is capable of following, that is, 0'1 springing out Willi or otreccding before said i11'ipcrle tions in the reciprocating rod. Also, the

. packing material of said Patent No. 9264376,

being COYDPI'QSSllJlC and non-elastic, is impra'ctlcable for use as a. paclung tor pistons in cylinders the bores of which have become 1 Worn, out of round, as so frequently occurs.

The object, oi thisqinvention is, therefore. to produce a packing which shall have the lubricatit-carrying structure; the capacity .for compression whereby, by lateral pres sure, it may be thickened in dimensions at. right angles to said pressure to accurately fill its box or cylinder; and all of the ad i utages of the invention of said. Patent No. 926,676, with additional attributes, chici" among which is that of elasticity.

In the accompanying drawings forming a parthereot, Figure l is an exterior view of a collection of granules joined together, showing their irregular formation with innumerable cells existing l)(3l=\\'((.ll said :y'ranules. Fig. 2 is a highly magnified View in CIOSS-SQCUOII' of a single granule disconnected from the mass, showing throughout its body Specification of Letters Patent.

i i l l i the forn'iation of innumerable con'nnnnieat-.

Patented Feb. 21, 1911.

Application filed October 25. I910. Serial No. 589.003.

ing cells containing the lubricant. Fig. 3 is a fragmentary view in elevation of a. por tion of a compressed ring formed out of a mass or the granules, this view showing the exposcdcells elongated by the operation of compressing the granules, and also showing the shredded asbestos interwoven throughout the mass.

The body of the packing material comprises innumerable sniall irregular granules, preferal'ily of substantially the same alloy, copper, antimony, in, etc.,of which Babbitt metal is 1nade,'sa-idgranules being ofirregular shape, and ragged, to increase the adhesion thereto of shredded asbestos by which the granules will eventually be separated, the said granules having innumerable cells throughout their structure form ing receptacles for a lubricant, preferably graphite. These granules, as stated, will be separated from each other preferably by shredded asbestos, the sutlieiently reduced fibers of? which adhere rczulily to the ragged edges of the granules.

The i'nixing oi the granule with asbestos, oil. and graphite. may be carried forth in various ways. that is, one ingredient may be ini.\cd with the mass before the other, but

,llle dwimhle way of mixing the several pails we have found is substantially as follows: it sullicicnt number of granules to form a packing ring is first placed in a receptacle: to this mass shredded asbestos is added. which is stirred until the two become llud'mlgjlliY mixed: :1 mixture of graphite with oil. wax. or the like, is then applied in the mass a l'u-r which the mass is heated 1 that as the air within the cells becomes heated and expands it escapes from the cells,

1 during Whh'h process the cells are filled by the inflow oi the lubricant, The mass is now in condition to form rings or packings to; di'lierent purposes. In case it is desired to form a pistonring. the mass is distributed around a piston and when a .:la1nping-ring is placed in. position and pressure is a plied the mass is compressed and readiy shapes itself to conform to the contour of the adjacent walls, thereby making a smooth and tight joint. As before stated, the metalstructure of the granules is compressible I 0 0 I 7 said rod, thus i'naintaining a constant tight joint, and with equal facility it provides a tight packing for pistons operating inoutot-rouud cylinders.

The packing here described has inherent elasticity to a slight degree by reason-of the asbestos, which makes the packing more adaptable to su erheated steam, and also for gas and gaso one engines wherein a high temperature obtains.

()ur above described packing is sufliciently pliable to be used on'movable brass rods and valve stems'wit hout danger of dating the brass surfaces of said rods and stems.

We have here mentioned Babbittmetal, asbestos, and graphite, as illustrative materials, andas preferred ones so far as our experience has gone, butother materials may be substituted with good results without departing from the spirit of our invention body in granules, an elastic mineral separate ing said granules, and a lubricant charging the cells of said metal-body.

3. As a new article of manufacture, a unitary elastic structure comprising a eor'npres- Q sible non-elastic cellular poriferous 'metal- 7 body in a plurality of divided granules, said granules said granules a lubricantcharging the cells of'said metalbody. i i

In witness whereof, we have hereunto set our hands and seals.

sarrmus P. momu'sor. [1.. 5;] us norm MORRISON. a. 8-]

Witnesses to signature of S. P. Morrison: 1

N. H. Lnoocq, O. E. Puma.

Witnesses to signature of V. D. Morrison:

J. A. Mm'rtmx,

FRANK O. FrrroN.

50 aving sharp ragged edges, on elastic substance separatin and retained by the edges 0 the latter, and

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