US1111063A - Packing-ring for pistons. - Google Patents

Description

A. GIRTANNER.

PACKING RING FOR PISTONS. APPLIGATIONIILED P121119, 1914'.

4 a Patented Sept. 22, 191 i WITNESSES INVENTOI? Afiirtmmer.

, TANNER, a citizen'of the United States of i-tines.

' the passage of the motor fluid. I, therefore ALEXAKQ'HER GIREANNER,

PACKING-RING:

specification o1 ietters Potent.

lf ri ltfh Patented Sept. 22?, 129 1 11.

llpplicatlcn filed February 1.9, 191 2:. serial No. 81.93%.

1h alt who. W may concern:

Be it known that I, ALEXANDER GIR- America, residing at the city of St. Louis, State of Missouri, have invented a certain new and useful Pecking-Ring'for Pistons, of which the following is such a full, clear, and exact description as will enable any one skilled in the art to which it appertziins to make. and use the some, reference being bad to the accompanying drawings, forming part of this specification.

My invention relates to packing rings for pistons, and has for its object the production of a packing ring which will not be liable to allow the passage of steam or gases be tween the ring and the piston when the ring is in position.

In the accompanying drawings, which illustrate a packing ring made in accordance with my invention, Figure 1 is a sectional view of a cylinder and piston, showing a. pair of my rings in osition; Fig. 2 is it top plan view of oneo the rings; Fig. 3 is a. side view of one of the rings, one end of one of the parts being broken away; Fig. 4 is a side view of one part of one of the rings, and Fig. 5 is a side view of the other part of the ring.

Like marks of reference refer to similar parts in the several views of the drawings.

10 represents a piston arranged in a cylinder 11. The piston 10 is provided with the usual-rectangular annular grooves 12, in the present instance, two in number. In each of these grooves is arranged one of the piston rings. Each of the piston rings consists of'zt part 13 and a part- 14, the to Acting faces of which are beveled, nsbest hown in Fig. 1. Each of the parts 13 and -t of. the ring is divided by a slot in the usual manner. Theinain object of my invention is to so arrange these slots that they cannot be brought into alinenient to allow provide the part 13 with an inclined. slot '5 ntending in one direction, and the purl 14 with an inclined slot 16 extending in the opposite direction, as shown in Fig. 2/ As shown in Fig. 2, the two parts of the, ring are arranged so as to brin the two slots 15 and 16 as nearly as possi lev in alinement. In this position, however, the projecting point 17 on the part 13 and the projecting point 18 on the part 14 will overlap through the entire depth of the ring, as best shown in Fig. 3, so that even in the most unfavorable position, the slots will be almost entirely closed. It will; be understood, howev .,1-. that in placing the rings in position, the two parts should be arranged so that the slots will be entirely out of elinement. In case, however, the slots should work around tothe position shown in Fig. 2, a very slight leakage of the motor fluid will be allowed.

It has been customary heretofore to prevent the slots in the two arts of a packing ring being brought into. inement by means of a pin set into one of the parts and engaging with a recess in the other part. By

my construction, however, I so form the slots that their relative position is practically immaterial, and, I, therefore, obviate the use of the pin and thus avoid the weakening of the ring which is consequent on such construction. i

Having fully described my invention, what I claim as new and desire to secure by Letters-Patent of the United States is:

The combinationwith a piston provided with in-annular groove, of :i packing ring composed of: two parts placed side by side in said groove, each. of said parts being divided by an inclined slot to produce 0v rlapping points, the co-acting points of t e two parts eitending in opposite directions.

In testimony whereof, I have hereunto set my hand :mdefiixed my seal in the presence of the two subscribing witnesses.

ALEX. GIRTANNER. c s] \litncsses W. A. ALEXANDER, h. M. SI'HHUL.

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