US978930A

US978930A - Valve.

Info

Publication number: US978930A
Application number: US55736310A
Authority: US
Inventors: Edward O'malley
Original assignee: MALLEY BEARE VALVE Co O
Current assignee: O'MALLEY-BEARE VALVE Co; MALLEY BEARE VALVE Co O
Priority date: 1910-04-25
Filing date: 1910-04-25
Publication date: 1910-12-20
Anticipated expiration: 1927-12-20

Description

E. OMALLEY.

VALVE.

APPLICATION FILED APB. 25. 1910.

Patenaea 1380.20, 1910.

2 SHEETS-SHEET l.

Hozuu 1:. OMALLEY.

VALVE.

PPLMTIOH FILED 32.25. 1910.

Patented Dec. 20, 1910.

2 SHEETS-SHEET 2.

TICQJT- f 'ul v UNITED STATES PATENT oEEroE.

lEIDIFAED O'MALLEY, OE JACKSON, TENNESSEE, ASSIGNOR, BY DIRECT .AND MESNE ASSIGNMENTS, TO OMALLEY-BEARE VALVE COMPANY, F CHICAGO, ILLINOIS, A.

CORPORATION OF DELAWARE.

VALVE.

Specification of Letters Patent. IafhelltjAi Dc. 20, 1910.

Application filed Api-i1 25, 1910. Serial No. 557,363.

' or both members, with removable wearing vvalve heads surfaces, and it is the further object of this invention to malte these removable wearing surfaces of such form and thickness that the maximum economy of metal is accomplished in their construction, so that when one of the removable surfaces becomes worn or damaged it may be removed and discarded with but little expense te the user.

The advantages of such an invention are obvious. At the present time'a great many and valve seats are either formed integrally with the respective parts, or if they are removable they are of such dimension that great waste would be incurred if they should be discarded, and for this reason in most cases they are reground or refaced which necessitates the removal of the damaged part, the employment of parmoved and discarded without the use of special tools and a new member be immediately replaced, and the parts placed in working order with but little delay to the operation of the valve. It is also a part of this invention to apply a plurality of these removable parts in nestvform, so that when the outermost one becomes Worn or damaged it may be removed and thereb preseating the one next below, which wi provide a new member, so that the function of the parts in the operation of the valve may be continued immediately.

While the preferred form of this invention is illustrated in the accompanying sheets of drawing, yetit is to be understood that minor detail changes may be made without departing from the scope thereof, and while one means of attaching the removable members is illustrated in this application, it is g to be understood that these members may be held 1n place in the manner described in my prior applications, Serial Nos. 489,262;

494,329; and 581,599 in which removable members are disclose Figure l is a longitudinally sectional view illustrating the application of a plurality or nestbf removable members to a globe valve with parts of the valve broken away. F 1g. 9 1s a view in side elevation of a plurality or nest of removable members. Fig. 8 1s a top'plan View of the construction in lf 1g. Figa/L is a detail view partly in section illustrating the application of a single E removable member to the head or a reciproeating valve. Fig. 5 is a detail view in cross section illustrating the application of a single removable member to a valve seat.

.Figzv is a top plan view of the construction 1n xg. 5. Fig. 7 1s a view in end elevation of a single removable member to be applied to a valve seat. Fig. 8 is a top plan view of the construction in Fig. 7. A

In Fig. 1, the removable members are shown in nest form secured to the head and Seat of the usual form of globe valves. In th1s case the plurality or nests of removable members as secured to the seat may be termed seat plates, and are held in place upon the integral seat of the valve. The removable members as secured in place upon the head are also in nest form and may be termed head plates. As is customary in valves of this type, the seat is in the form of a rm l extending upward from the bridge or we of the valve. The nest of removable seat plates comprises a plurality of very thm plates 2 corresponding in size to the contour of the valve seat, and are secured in placel thereon by a securing ring 3 having an inturned flange 4 adapted to engage the uppermost plate. The exterior of the upper pro]ect1ng seat member 1 is screw threaded and the interior of the securing ring 3 is corresplondingly screw threaded to seated, the head proper wil remain sta- 116.

tionarv in engagement with the seat as the stem is being rotated at. the closing of the valve. To accomplish this the end of the valve stem is provided with an outstanding flange or disk 'a' of greater diameter` than the stem noper. The valve head 5 is provided with an aperture. to receive the enlarged head of the stem and the inner walls of this aperture are screw threaded to .receive a similarly screw threaded nut S, which will when secured in place allow of the rotation of the valve stem within the valve head. The valve head on the under side is provided with an enlarged depending screw threaded member 9 and a at surface l0 upon which the nest of head plates l1 is secured by the securing nut 1Q upon the enlarged depending member 9.

In employing a nest of plates it is preferable that the plates be secured in alinement. with each other by wiping the edges thereot` with solder. In case it is desirable to use but; a single removable seat plate in connection with the ordinary valve head in which the valve head is rigidly mounted upon the Vvalve stem provision 1s made wiereby the Y Where the screw threaded outer portion of the seat member engages the web, so that when the securing ring is advanced as far as possible there will be sutlicient play between the intnrned securing flange of the, ring and the seat plate to allow the seat plate to turn upon tte seat. member.

Then itis desired to apply a single removable head plate to a head of the character illustrated in Fig. l, and the valve seat is of the ordinary construction, the valve head 5 is provided with a recess 13 between the central depending screw threaded member 9 and the flat portion 10 of the valve head adapted to receive the head plate. The securing nut l2 is provided with a Vreduced portion 1l adapted to enter into the recessed portion of the valve head, and the outstanding flange or plate engaging member 15 of the nut is so constructed in relation to the reduced portion that when the nut is completely seated and the reduced portion is in engagement with the bottom of the recessed portion of the valve head, the head plate will have sutiicient play between the securing nut and the valve head to allow it to rotate thereon as the head advances downward and comes into engagement with the valve seat as the valve is being closed.

' Fig. 4.- illustrates a valve head in which the head 16 is rigidly secured to the valve stem 17, and the under side. ot' the valve head i presents a continuous ilat surface 1S from the circumference thereof to the enlarged central screw threaded depending member 19. In this case the securing nut :20 provided with an outstanding securing flarge Q1 adapted to engage the head plate '22 and the side of the llange in proximity to the head is recessed suhiciently to allow of a play of the head plate between the securing portion of the nut and the head. for the purposes above described.

Figs. 5 and 6 illustrate the` application of a single removable seat. plate Q3 as applied to a'valve seatin which a valve head ot' the ordinalv type is employed. In this case the seat member 24 presents a flat surface for engagement with the removable seat plate, and the seat plate is slightly less in diameter than the seat member. rihc exterior of the seatimember is screw thr ided and is adapted to engage with the inner screw threaded portion of a securing ring 25. The securing ring is provided with a plurality ot' spaced apart inwardly projecting members 2G which are shouldered to engage the upper surface of the seat member when the securing ring is in place. The inner side of these members which engage the seat plate are recesscd sufficiently to allow of a rotary movcment of the seat plates upon the seat member when the valve head comes in contact. with the seat plate in the closing movement of the valve.

The removable plates for both the heads and seats of valves, as shown aud described, are so constructed as to contain the minimum amount of metal in each plate for the purpose specified. In both forms the plates are circular having a central circular cut out portion, so that the width of the metal forming the plates is justsuticieut to be engaged by the other operating member ot' the valve and allow for the securing means which attaches the plate in place to its respective valve member. By this construction a great deal of metal is saved in the manufacture ot' the plates. The plates are preferably made from relatively hard metal` so that the)v will have sullicient bodyr when secured in position to accomplish their function, and at the same time increase their duration. Such metal as nickel, brass, phosphor bronze, or similar hard tough metals answer the requirements and will produce a plate that will last ap proximately as long, without removing or changinff as the ordinary stationary valve o or seat members. As these plates will remain in `goed operative condition approxi-V r.'

n masso 8 cial value of such a construction is therefore evident. To construct Athese platesso that a Worn or scored plate may be discarded without a loss to the owner and make the application of this invention not only practical, but a great saving to the user, these plates are made extremely thin. In regrind ing er refacing a valve head or valve seat, either of the removable or Stationary form, a certain amount of met-ai must be removed in thisprocess from the respective member, in order to cut below the scored or damaged portion and present a perfectly trued sur- Y face, and the 'metal thus removed not only shortens the duration of usefulness of this operative part, but is a total loss to the owner.

The plates construct-ed in conformity to this invention are preferably ony of that thickness which would correspond to the amount of metal removed in the refacing or resurfacing of the corresponding member in valves heretofore used. It will therefore be seen that bv the use of the plates of this invention: `the discarding of a worn or scored plate not only sav time and expense of refacing or resurfacing the corresponding member, but the Worn or scored plates may be discarded without loss to the owner ofthe valve and without shortenlng the operative life of the parts thereof. By constructing and securing the plates in the manner described a great saving of material is obtained, not only on account of the thinness of the plates, but on account 0f their'contour.

These plates may be stamped directly A from sheets of metal, Whose surfaces have 'been previously trued, or they may be made hard metal for theicontactmg parts of valves similar in form to the contacting partand of the thickness of the'depth 'of metal removed in grinding and refacing a Worn contacting part corresponding thereto.

2. A removable thin fiat Wearing surface plate of hard metal for the contacting parts of valves similar in form to the contacting part, and of the thickness of the depth of the metal removed in grinding and refacing a corresponding contacting part Worn by continual operation of the valve.

3. In a valve including contacting head and seat members, a thin Wearing surface plate and means for removably and rotatably securing the plate upon one of the members.

et. Wearing surface plates of hard metal for the contacting parts of valves similar in form to the contacting parts and of the thickness of the depth of metal removed in grinding and refacing a Worn contacting part corresponding thereto, in combination with means for removably securing the plates to one of the contacting parts, said means engaging the plate at the edge of the portion of actual Contact.

5. In a valve having contacting parts, a.v

Wearing surface plate for the contacting parts similar in form thereto and of the thickness of the depth of metal removed in grinding and refacing a Worn contacting part corresponding thereto, and means for removably and rotatably securing the plate to one of thecontacting arts, said means engaging the plate at an e ge of the portion of actual contact. Y

6. In a valve including a valve head and seat member, a thin wearing surface plate of hard metal for the contacting parts, and

means for removably and rotatably securing the plate to one o he contacting parts.

EDWAIL.. OMALLEY.

Witnesses:

I. B. Pieno, R. L. Bamm.