US1120144A

US1120144A - Valve.

Info

Publication number: US1120144A
Authority: US
Inventors: Burton J Hine
Original assignee: Scovill Inc
Current assignee: Scovill Inc
Priority date: 1914-01-14
Filing date: 1914-01-14
Publication date: 1914-12-08
Anticipated expiration: 1931-12-08

Description

B. J. HINE.

VALVE.

APPLICATION FILED JAN. 14,1914.

Patented Dec. 8

YHE NORNIS PEM-R5 co PHnln Llllln WAS'HNLHIN, n c

TINTTED STATES RATE OFFICE.

BURTON J. HINIE, 0F WATERBURY, CONNECTICUT, A SSIGNOR TO SCOVILL MANU- FACTURING COMPANY, 0F WATERBURY, CONNECTICUT, A CORPORATION OF CONNECTICUT.

VALVE.

Specification of Letters Patent.

Patented Dec. 8, 1914.

Application filed January 14, 1914. Serial No. 811,991.

To all whom it may concern Be it known that I, BURTON J. HINE, a citizen of the United States, residing at Vaterbury, county of New Haven, and State of Connecticut, have invented certain new and useful Improvements in Valves, fully described and represented in the following specilication and the accompanying drawings, forming a part of the saine.

This invention relates to improvements in valves, and partici'ilarly to means for packing the valve stems of underground valves.

The object of the invention is to provide a valve and post construction such that when the valve is buried in the ground, the packing gland for the valve stem may be repacked without the necessity of digging up or otherwise disturbing the valve itself.

With this general object in view, the invention consists in the features, details of construction and combination of parts which will first be described in connection with the accompanying d'awings and then particularly pointed out.

In the drawings-Figure l is a vertical sectional view, partly in elevation, of one embodiment of the invention; Fig. 2 a horizontal section on the line 2-2, Fig. l; Fig. 3 a detail vertical section in a plane at right angles to that of Fig. l; Fig. 1l a detail view oit a modified form of stuilingbox; and Fig. 5 a detail view illustrating the embodiment of the new packing device in a street box.

Referring to the drawings, l indicates any well known form of valve body arranged to be buried in the ground or otherwise so placed as to be inaccessible. In the illus tration, the valve is supposed to be a gatevalve and is shown as inserted in a watermain, parts of which are indicated at 2. The valve body is illustrated as broken away in order to show the valve indicated at 3, the stem ot the valve being indicated at 4, this stem projecting through a bonnet 5 suitably secured to the valve body, as by providing the bonnet with a flange bolted to a corresponding flange on the valve body. To the bonnet is secured a barrel or casing 6, whose upper end extends to a point remote from the valve body, as for example to a point above the surface of the ground so that access may be had conveniently to such outer or upper end of the casino.

In the best embodiment of the invention, the casing is flanged at its inner end and the bonnet is flanged at its outer end, the two `flanges being connected by bolts as will be clear from the dri'iwings.

suitable packing device is provided for the valve stem, this packing device being adjacent to the valve body. The packing device comprises two parts, one oi which serves as a stalling box and the other as a gland arranged to enter the stuiling box, the space within the stalling box being arranged to receive any suitable kind of packinef.

In the best embodiment of the invention, one of the two parts oi. the packing device 1s secured to the valve body, as ior example by attaching it to the bonnet, and the other part `is connected to a means for removing and replacing said part, this means eX- tending to a point remote from the valve body, as for example to a point above the surface of the ground. In the preferred embodiment of the invention illustrated iii the drawings, the gland is secured to the 'ialve body and the stuiling box is removable from the surface of the ground. In such a construction, the gland indicated at 7 may be provided with a flange which is secured to the outer Iiange of the bonnet, as for example by means of bolts. The stalling box indicated at 8 is suitably attached to the means for removing and replacing it, this means in the present example consisting of a hollow stulling box stem indicated at 9, which may be a piece ot' ordinary pipe. In the example illustrated, the stalling box may have its outer end inserted in the stufling box stein and secured thereto by means oit' a pin as indicated at l0, the stalling box having a shoulder indicated at 1l extending.

beyond the stalling box stem.

For the purpose ol insuring the retention of the packing within the chamber in the stuffing box, suitable means may be provided. In the present example of the invention, this means may consist ol a rib indicated at 19. located intermediate oi the two ends of the stalling box chamber, so that when the packing is compressed in said chamber the rib 12 will engage the packing and prevent it from dropl'iingi'eadily from the stulling box. Instead oi one rib only as shown in Fig. 1, a plurality oi such vribs may be employed, and the ribs may be inclined to the axis of the stuffing box and merged into the form of a screw thread, as indicated at 12, Fig. L1.

An important feature of this invention consists in locating the means for compressing the packing at a point remote from the valve body. ln the best embodiment of the invention, this means is located at a point readily accessible, as for example at the outer end of the stuffing box stem, which is usually above the surface of the ground. Tn the example illustrated, this means for compressing the packing comprises an adjusting gland 13 which bears upon the outer end of the stuiiing box stem and is connected to the casing 6 by suitable bolts indicated at 1li. The upper end of the casing may be provided with an inward extending flange for the reception of said bolts. The valve stem is arranged to be operated from a point remote from the valve body, the means for doing this being such as to be readily detachable from the valve stem. ln the present example, the outer end of the valve stem is tapered and is arranged to be received in a correspondingly shaped socket piece 15 attached to the lower end of an extension valve rod 16, which extends to a considerable distance above the surface of the ground. For the purpose of protecting the parts above ground, any suitable means may be employed. 1n the present example, this means is shown as comprising an indicator post 17 which carries at its upper end the vusual indicator and indicator-operating mechanism arranged to work in connection with the extension valve rod in any of the well known ways. As this indicator mechanism constitutes no part of the present invention, it need not be described in detail. The lower part of the indicator post is made of such diameter as to set over the upper end of the casing 6 and, for the purpose of locking the post to said casing, the post is provided preferably at opposite sides with slots through which extend ears 18 projecting radially from the casing. The indicator post is also provided with any suitable fastening devices,for example, the machine screws 19, which are threaded through openings in the post and are ai'- ranged to bear against the projecting end of the case.

The operation of this device is obvious, but may be briefly described as follows: lllhen it is desired to repack the valve stem, the screws 19 are loosened and the post is lifted directly upward. rThe extension valve rod, which is connected to the indicator post by the indicator mechanism at the upper end, moves upward with the post, leaving the valve stem. The hole in the adjusting gland 13 is large enough to allow the socket piece 15 to pass through it, thus allowing the indicator post, the extension valve red and said gland to be removed from the remainfact that said packing is held by the packing retaining device, such as the rib 12, F ig.

1, or the ribs 12, F ig. 4. The packing may now be removed, if necessary. To put in a new packing, it is only necessary to insert through the stiiiling box a rod of cross` section having the same, or preferably a larger, diameter .than that of the valve stem. The new packing may be inserted in the stufing box chamber around this rod and packed in tightly in the same manner as if the valve stem itself were in place in said stufling box. As soon as the packing has been properly placed in its chamber, the rod may be withdrawn, thereby leaving a hole of suitable size for the reception of the valve stem. Then, the stuffing box may be slid down in the casing 6 by a proper manipulation of the stuliing box stem so that the valve stem passes through the hole in the packing and through the stuing box, the gland entering the lower end of the stuiling box chamber and'contacting with the packing. The adjusting gland may then be brought to bear against the upper end of said stuliing box stein and the nuts screwed down upon'their respectivebolts lll to force the adjusting gland against the upper end of the stu'lling box stem and thereby to force the stuliing box toward the gland. This results in compressing the packing around the valve stem. As soon as the proper adjustment of the adjusting gland has been made, the indicator post may be slipped down over the projecting end of the case, the socket 15 at the lower end of the extension valve rod thereby engaging the tapered outer end of the valve stem. The screws 19 may then be tightened, thus completing the operation. It will be seen that by rotating the upper end of the extension valve rod, the valve may be oper` ated as desired. 1t is to be noted that by this improved packing device, it is uiinecessary to dig down for the purpose of packing the valve stein, and furthermore, the valve stem may be packed from above ground, whetl er the valve be opened or closed. This feature is of great importance in connection with gate-valves for ire-systems,.because it renders unnecessary the shutting off of the water during the packing operation.

The improved means for packing the stem of an underground valve may be ap lied in a modified form to a street box. glich an embodiment of Vthe invention necessitates that the casing shall terminate substantially flush with the street surface. Such a structure is illustrated in Fig. 5 where the casing 6 is provided with a socket end 6a terminating at the street level, vthis socket being arranged to receive a cap 21 which may be readily removed. The extension valve rod indicated at 16 'terminates just below the cap and is provided with a squared end for the reception of a wrench. In other respects, the construction oi' the parts illustrated is substantially the same as was described in connection with Figs. 1 to 8. Upon removing the cap, the valve may be operated by means of a wrench applied to the upper end ot' the same valve stem in a well known manner. 1n order to repack the stu'tiing box the adjusting gland 13 is removed and thereupon the stuffing box stem may be drawn up, together with the s'tuliing box. The packing may be replaced as hereinbefore described in connection with the structure shown in Fig. 1. Thereupon, the stufting box is replaced and the adjusting j gland 13 put in place and screwed down by means of the bolts 111 to the desired extent.

that is claimed is:

1. The combination, with a valve and a valve body arranged to be buried, a valve stem projecting from said body, and a packing device for the valve stem located adjacent to the valve body, said packing device comprising two parts, one of which serves a stnrling box and the other as a gland, one of said parts being secured to the valve body, of means connected to the other of said parts and extending to a point remote from the valve body whereby said other part may be removed and replaced without access to the valve body.

2. The combination, with a. valve and a valve body arranged to be buried, and a valve stem projecting from said body, of a stutiing gland for the valve stem secured to the valve body, a stuffing box arranged to coperate with the gland, and means connected to the stn'liing box and extending to a point remote from the valve body whereby said stuiling box may be removed and rcplaced from a distance.

3. The combination, with a valve and a valve body arranged to be buried, a valve stem projecting from said body. and a packing device for the valve stem located adjacent to the valve body, said packing device comprising two parts, one oi which serves as a stu'liing gland and the other as a stuffing box, one oit' said parts being connected to the valve body and the other having an extension member having an onter end extended to a point remote from the valve body, ot means acting on said outer' end and arranged to move one of said parts toward'the other part.

1. The combination, with a valve and a valve body arranged to be buried, a valve stem projecting from said body, and means ior operating said stem from a point remote trom the valve body, of a stuffing gland for the valve stem secured to the valve body, a

stuffing box arranged to coperate with the gland and surrounding the stem, a hollow stuffing box stem connected to the stuffing box, surrounding the valve stem and the means tor operating it, and having its outer end extended to a point remote t'rom the valve body, a casing connected t0 the valve body and inclosing the stuiiing box stem, and means intermediate the casing and stniling box stem and arranged to force the stnfling box tov-ard the gland, said means being located at a point remote from the valve body.

5. The combination, with a valve and a 'alve body arranged to be located underground, a valve-stem projecting from the valve body, and a packing device for the stem located adjacent to the valve body, of a packing-tightening device located above ground, and means intermediate said tightening device and the packing device whereby the packing device is tightened by the tightening device.

G. The combination, with a valve and a valve body arranged to be buried, a valve stem projecting from said body, andmeans tor operating said stem from a point remote trom the valve body, of a stalling gland for the valve stem secured to the valve body, a stalling box arranged to coperate with the gland and surrounding the stem, said stuffing box being provided with means for retaining a packing, a hollow stuliing box stem connected to the stuliing box, surrounding the valve stein and the means for operating it, and having its outer end extended to a point remote from the valve body, a casing connected to the valve body and inclosing the stl'l'lling box stem, and means intermediate the casing and stufling box stem and arranged to force the stuffing box toward the gland, said means being located at a point remote from the valve body.

7. The combination, with a valve and a valve body arranged to be buried, a valve stem projecting :from said body, means for ope'ating said stem lrom a point remote from the valve body, and a packing device for the valve stem located adjacent to the yalve body, said packing device comprising two parts, one o1 which serves as a stalling gland and the other as a stuiiing box, one of said parts being connected to the valve body, of a tubular stem connected to the other part and extending to a point remote from the valve body, a casing connected to said valve body and inclosing the tubular stem, an adjustable gland device bearing on the upper end of the tubular stem, and means connected to the casing and arranged to force the adjustable gland toward said casing, whereby the packing device is compressed.

8. The combination, with a valve and a valve body arranged to be buried, a valveL stem projecting from said body, and a packing device for the valve stein located adjacent to the valve body, said packing device comprising two parte, one of which serves as a Stuffing gland and the other as a stuffing box, one of said parts being connected to the valve body and the other having an eX- tension member having an outer end eX- tended to a point remote from the valve body, of a casing inclosing the packing device and its extension member, an extension rod connected to the valve stein and project ing above said casing, and a hollow part detachably connected to the casing and inclosing the projecting portion of the eXtension rod.

9. The combination, with a valve and a valve body arranged to be buried, a valve stem projecting from said body, and a valve stein packing device adjacent said body, ci' a casing connected to the valve body and inclosing the packing device and valve stein, Said casing extending to a point remote from the valve body, and having a plurality of radial lugs, a hollow post arranged to telescope over the upper end of the casing and provided with vertical slots to receive said radial lugs, means for locking the poet to the casing, means extending through the top of the post and arranged to operate the valve, and means Within the post for adjusting the packing device.

In testimony whereof, l have hereunto set my hand, in the presence of two subscribing witnesses.

BURTON J. HNE. Witnesses:

C. M. DE Morir, L. H. BAssETT.

Copies of this :patent may be obtained for five cents each, by adressing the Commissioner of Patents, Washington, ID. C.