US924861A - Valve. - Google Patents

Description

J. E. WARD.

VALVE.

APPLIOATIOE :ILBD MAY 18, 1908..

QQQEL Patented June 15, 1909.

WIN/E8858:

, W Mum/704R www Mw 1*? TTORNE Y S UNITED PATENT ()FFICE.

. JOHN E. WARD, ()li NEW YORK, i\'. $1., AbSlUNOK l'() WARD .lCQUllMliNT (/OMPAN Y, OF NEW YORK, R. \Q, A (SURPORNllOX Ul YEW YORK.

VALVE.

Specification of Letters Patent.

Patented June 15,1909,

Application filed May 18, 1908. Serial No. 433,403.

To all whom it may concern:

Be it known that I, J onx E. WARD, a eitizen of the United States, and' a resident of the borough of Manhattan, of the city of New York, in the county and State of New York,

have invented certain new and useful improvements in Valves, of which the following is a specification, reference being had to the accompanying drawings, forming a part hereof.

' The invention relatesmore particularly to What are known as end train pipe valves which are employed in the steam. heating apparatus of railway cars, although the same may be applied in various other connections as will appear hereinafter. In such apparatuses, it is desirable to provide a valve which shall not permitthe water of condensation to collect therein or in the pipe adjacent thereto but through which, on the other hand, any such water may readily and autonuttically discharge into the coupling hose connected thereto, thus preventing the water from cooling and freezing in the train pipe or the valves at either end thereof. It is also desirable that the steam may be turned on and off by a quarter turn or less of the handle through which the valve is manipulated, for the reason that any considerable movement of this handle is'apt to be impeded by adjacent parts and for the further reason that a quarter turn or thereabout is easy to effect and oifers at the same time a good indication of the position of the valve, whether-open or closed.

The object of the invention is accordingly to provide a simple and comparatively inexpensive valvestructure or fitting WlllCll' shall have the characteristics above referred to and which shall be capable of being contained in a very small com ass.

The invention will be exp ained more fully hereinafter in connection with the accompanying drawings in which I Figure 1 is a viewpartly in horizontal se-:r-

tion and partly in planof a valve embodying the invention, the plane of the section. being indicated by the dot and dash line in Fig. 2, which is a view of the same partly in vertir :11 section and partly in elevation.

The valve is shown in Fig. 2 of the draw ings in the position which it occupies when screwed in place upon the tram pipe, one such valve being rovided at each end of a car and forming t e connection between the 1 which separates the port a from the port b,

train pipe and the coupling hose by means of which. the pipes upon adjacent cars are gnade to communicate. ln such position, it will so seen that the partition g of the valve,

59 is in line with the bottom of the port a or, what is the same thing, with the bottom of the train pipe which joins the port a. Such partition, moreover, overlies the port I) to which the roupling hose is attached; This latter port, as will be seen, forms an obtuse angle, so far as its direction is concerned, with the other port. In the partition 9' are formed one or more passages c, referably a plurality of passages, and such passagesare controlled by a corresponding number of valve plugs i. In this particular instance, there are two passages 0 arranged on opposite sides of the renter of the partition 9 and the valve plug corresponding with each passage is held against its valve seat in the partition g by means of a spring h 'which is coiled about a projection upon the valve plug" which extends upwardly into an arm m formed upon the valve spindle n, the valve plug thus being free to rotate and move in a vertical direction, but being held down upon its seat through the a-ction. of its spring.

The axis of the spindle is vertical and normal to the plane of the partition g and the arms or upon the spindle, extending as they do from the center outward, bring the valve plug into a position to one side of the center line or axis of the spindle; and it will be obvious that the greater the number of the openings 0 (and therefore of the valve plugs) which are provided, the shorter the arms m may be made without decreasing the area of valve passage. lvloreover, by increasing the number of such passages the angularity of the movement of the spindle in order to open and close the valve may be decreased. It follows therefore that by previding a plurality of passages through the valve, the fitting embodying the same may be made very compact indeed.

The spindle it extends upward through a suitable opening or recess in the screw cap and is provided with an enlargement or huh which fits an eniargement 01 the ess in the screw cab, which enlarged rec sufficient length to constitute a packing chamber or box above the hub, in which a packing 0 is confined between the upper end of the recess, which is preferably conical as the action of the springs, that oft-thes anr to pressure will: servea'lso' o'keep tl-ie spindle drawings) for conveniently 'With. suchua haiiidle it V ow, byjjaiquarter' -turn "ioif'less e opened or closed.

It' bught to be-menf-tioned-that the pipes upon-the railwaycarslto'wlpich the improved valvefis intended to be connected, are gen- .f eralljfinclinedfrom thelcenterto the ends of the cars. j' In this wiay, thewater of con dens ation will always'frun down toward the 2 5 valve where it fshouldfgbe permitted to -dis-' charge into the coupling hose in order that it maynotkremain in the pipesand freeze or --cau se other injury theneto; v It will be' seen that by reason of the pariular {construction of the applicants device 3. he water passing in by port q/will have a freepassage whenthe valve is open through the port b; which is on a level with the bot tom of theinletpoi't a, and there being no partition or other check in the fittingabove I the valve seat. In other words the partition g, is substantially continuous with the botto n of the pipe and whenthe valve is open, as; is generally the case when the ears 40 are coupled together, such partition will not hinder the water which flows into the, valve from the train pipe from passing down into the port I) and into the coupling hose. When i the hose is uncoupled, the pressure-of the 4-5 steam in the train pipes will cause the. con- ..dlensedwater in the system to blowuofi' tl'n oughthe blow ofi port I) of the valve and throughthe hose. ,Devices of the character herein set forth f tionable leakage. It

J construction shown provision is made to prevent such tilting by extending the bearing {upward above and downward into and -be- 1' "low thesnormal outline of'the casing so that 1 the valve spindle has practically a bearing equal'to its length, and by forming the packto nder'st nd fijom an eXarninaare subjected to eiitremeli rou h usage and any tiltin of the valve -spind e and valve resulting rom such'usplge causes an jecng box iii-said bearing and 'c'losing'it by thehub'of the spindle the packingis securely go iconfin ed and maintained tight around the spindle by the action of thesprings h as Wll as by the pressure of the steam tending to forcethe spindleupward, while the valve plugs are maintained upon their seats even if the spindle rises as the packing becomes compressed or'wears- It will beseenfurther tachable 'cap t e latter can be 'readily re moved or; elevated upon thevspilidle to per I claimas my invention; v

In a device of the class descr bed the combination with a'casing having inlet and outlet having its upper face level with the bottom terniinating 'above saidvalve seat and having its upper en'd made in two diameters forming an upwardly facing ls boulder, a nut constituting a bearing for sal spindle having a bore of two diameters forming an interior downwardlyfacing shoulder, packing between the said shoulders on the spindle and nut, the saidnut being, extended both exteriorly and interiorly beyond the casing to plug connected to the lower end of said spindle so as to turn. therewith, and aspring interposed between saidspindle and plug so as to keep the plug upon-thevalve seat.

This specification signed and witnessed this 14th day of. May, A. D. 1908.

1 Signed in the presence of V Luorrs E Yiinxniy .llonnn ll. SNOW.

that by forming the packing box in the de- 'mit the packing to be removed aiid replaced.

"branches, of a horizontal valve seat therein form a long bearing for the spindle a valve be seen that in the of the inlet branch, a, rotary valve spindle. a.

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