US822983A

US822983A - Valve.

Info

Publication number: US822983A
Authority: US
Inventors: Richard Rhoda
Original assignee: Individual
Current assignee: Individual
Priority date: 1904-11-14
Filing date: 1904-11-14
Publication date: 1906-06-12
Anticipated expiration: 1923-06-12

Description

RICHARD RHODA, OF GOATESVILLE, PENNSYLVANIA.

Specification of Letters Patent.

Patented June 12, 1906.

Application filed li'svcmber 14, 1994. Serial No. 232.652.

T0 ail-Z whom it may concern:

Be it known that I, RICHARD RHODA, a citizen of the United States, residing at Goatesville, in the county of Chester and State of Pennsylvania, have invented certain new and useful Improvements in Valves, of which the following is a. specification, refer ence being had therein to the accompanying drawings.

My invention relates to valves, and more particularly to that class wherein a packing ring or disk is employed as a valve-seat or'on the valve-head, one of the objects being to provide a device of the character described where'the valve is provided with an annular recess with deflectin or receding walls, so as to obviate the possiliility of a packing-ring becomin loosened by the action of the valve.

A furt er object of my invention is to provide a device of the character described wherein a packing-ring of yielding malleable metal may be used in place of the ordinary packing or guttaspercha ring now commonl Y used in valves of my character, and the pecul iar construction of the ring gives it a large surface on the facets reduce the wear on the ring and on the valve seat.

Herctofore in valves of this character the packing has been in the form of adisk or ring, of guttaercha or some similar substance which quickly wears away and the pieces of which are constantly being forced into the pipes or becoming lodged in the valves and causing them to become inoperative and useless until the waste pieces of the ring are removed or the valve repaired. By the use of my device the wear is reduced to a minimum, causing a saving of time in removing and re placing rings after they have become inoperative, and also lessening the cost and resulting in general superiority of service.

The structural features of my invention, by means of which these objects are attained, will be made clear by an examination of the specification, taken inconncction with the accompanying drawings in which the same reference-numerals indicate corresponding parts throughout, and in which Figure l is a sectional view of a water-cylinder in a pressure-pump, showing the valveseat and my improved valve-ring in place. Fig. 2 is a cross-section showing my improved packing-valve ring partly in position with the rib resting in the annular recess. Fig. 3 is a cross-section of said ring, showing same inc erative position and the rib expanded in t e annular recess. the ring.

i desi nates a valvehead or the part thereof tiat carries the packing. 2 is the valve-seat, and 3 is an annular recess in the valve-head. The recess 3 expands inwardly, so that it is narrowest at the entrance thereto and widest at its innermost part. The packing-ring 4 is comprised of an annular rib 5, provided with a V-shaped groove 6 in the face thereof, leaving points 7 on either side and a facing8 proj ectmg on either side of the rib, thus giving said ring the form of an inverted T. This ring may be made of guttapercha or any similar substance, or it may be made of an suitable metal, preferably that which is yie ding in character. It comprised of a softer substance than metal, the face 8 is where the greatest wear takes place. The sides of the rib 5 are vertical, so that when the same is inserted into the annular recess 3 the points 7 rest against the roof of said recess, the rib being constructed so that its height is a trifle greater than the depth of the recess, which leaves the points resting against the roof of the recess and leaves an intervening space caused by the groove and also a space on each side of the rib caused b r the receding walls of said recess. The ri being of a height greater than the depth of the recess, when the ring is forced into position with the valve-head resting upon the outwardl -projecting face of the ring, the rib is cause to expand and the voints 7 are forced to each side and rest in t 1c corners of Fig. 4 is a cross-section of the recess, which expanding of the rib causes.

the groove 6 to practically disappear and the top of the rib to become level, or nearly so, and to rest against the roof of the recess.

I am aware of structures having some features in common with my invention, but differing in other essential features-as, for instance, in providing the rib with a deep groove extending substantially to its base and virtually dividing the rib into two ridges andand anyinfluence exerted to dislodge the same must compress the metal itself in lines diametrically op osed to each other. In other cases the heiglit of the rib above the plane of the ring is substantially the same as the ver tioal depth of the recess, and to force the same to its seat and allow for expanding it becomes necessary to provide a corresponding rotuberance on the other face of the ring. In t 's construction it is not only difiicult to efficiently seat the ring, but it becomes indispensable to finally dress the face of the same when in place-an inconvenient and expensive operation.

Having thus described my said invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a valve, a packing-ring havin on one side a plane face and on the other si e a rib, the rib having a move extending longitudinally thereof and to a de th materially less than the hei ht of the rib, in combination with a valveead rovided with a recess arranged to receive t 1e rib, said recess having inwardl -diverging walls and a substantially flat roof the vertical de th of the recess being slightly less than the eight of the rib and the mouth of the recess of substantially the same width as the rib.

2. In a valve, a packing-ring having on one side a plane face and on the other side a rib disposed ata distance from either edge, the rib having a groove extending longitu inally 1 thereof and to a de th materially less than the height of the rili, in combination with a valve-head provided with a recess arranged to receive the rib, said recess having inwardly-diverging walls and a substantially flat roof, the de th of the recess measured on its inclined wa ls bein substantially equal to the height of the ri and the mouth of the relcess of substantially the same width as the r1 3. In a valve, a packing-ring of malleable metal havin on one side a plane face and on the other side an annular rib with vertical walls disposed at a distance from either edge of the ring, the rib having an annular V-shaped groove in its up er face of a depth materially less than the height of the rib, in combination with a valve-head of harder metal provided with a recess arranged to receive the rib, said recess having inwardl -diverging walls and a substantially flat roof: the vertical de th of the recess being slightly less than the eight of the rib, the depth of the recess measured on its inclined walls substantially equal to the height of the rib, and the mouth of the refiess of substantially the same width as the I'l In testimony whereof I hereunto affix my signature in presence of two witnesses.

' RICHARD RHODA.

Witnesses:

S. G. Coon, WILLIAM S. G. COOK.