US1609879A - Quick-opening valve - Google Patents

Description

Dec. 7 1926.

` J. MEssMER QUIGK OPENING VALVE Filed August l, 1921 Patented Dec. 7, 1926.

UNITED STATES PATENT O FFICE.

Josnrn Mnsslvrnn, oFds'fr'. Louis, rrrssounr, Assieivon To FRED MESSMER MANUFAC- TURING COMPANY, or sT. LOUIS, MISSOURI.

Application led August 1, 1921.

This invention relates to valves or water cocks, and the general object of the invention is to produce a simple quick-opening and closing valve which can be moved from its closed position toI its full-open position by a relatively short movement ot the handope-rated part that controls the valve. i One of the objects ot the invention is to provide a construction whichwill avoidY the use of threads for enabling the valve to be screwed upon its seat. While my valve may be used for various purposes it is especially useful as applied to washing machines to enable the contents of the tub to be drained ott into a bucket. IN iere a drain valve is opened or closed by a threaded connectionthe opening and closing movement of the valve is so slow that the bucket receiving the water may become lled and overflow before thev valve can be completely closed.

lvl/ith a valve constructed according to my invention the valve lever can be held in ones hand and with a slight movement 'of this lever the valve can be opened fuller held in any partially open position desired. One ot the objects of the invention is to provide means for packing a valve of this type which will prevent leakage.

Further objects of the invention will appear hereinafter.

rlhe invention consists in the novel teatures, and in the `general combination of parts to be particularly described hereinafter, all oi which contribute to produce a simple and eflicient quick-opening valve. A preferred embodiment of my invention will be particularly described in the following` specilcation, while the broad scope of my invention will be pointed cut in the appended claims. V

In the drawing.: Figure' 1 is a side elevation of a valve embodying my invention, certain parts ble-1 ing broken away to illustrate details of the valve; this view shows the valvevin its :tullepenposition;

Figure 2 is a vertical section through-the valve shown in Figurel but illustrating the valve in its closed position;

Figure 3 is a plan of the valve partially broken away; and y Y Figure 4 is a vertical section through the valve taken on the line r-l f Figure 1 Serial No. 488,762.

but merely showing the bracket and the round member or ball carried thereby.

Referring more particularly to the parts. the casing 1 of this valve includes a body 2 which may be provided with a tia-nge 3 which facilitates the same being attached to the under side of a tub or other vessel 4 which` the valve is to drain- The valve may, of course, be of any type, but the valve illustrated is Aof elbow-form provided with an opening 5 through a seat 6, which isl adapted to be closed at will by a valve including a valve disk 7 carrying a gasket or washer 8 adapted to come upon the seat when the valve is' closed. The valve includes a stem 9 to which the disk 7 is attached and this stem is guided in the casing, that is to say, it is guided by and rpasses through a bonnet 10 which is detachably secured to the body 2 by screw-threads 11. According to my invention I provide a cam which is provided with a manually operated member such as a lever 12. By rotating the lever the cam forces the valve upon its seat. The valve and cam are so related that they co-operate so as to enable the valve and cam to maintain themselves in any rposition in which they are lett. I prefer to provide a spring associated with the valve in such a way that it will open the valve when the cam permits. For this purpose I prefer to provide a bracket 13 which is detachably mounted in a bore 14 in the outer side of the bonnet. Any suitable means may be provided for securing this bracket. For example, I may secure it in position by two taper pins 15 which are driven into holes drilled partly in the wall oi' the bore 14 and partially through a cylindrical neck 16 on the' bracket, which tits into the bore 14. rlzhe outer end ot the stem 9 is provided with a. collar 17 which may be secured by means of a pin 18, and a small coil spring 19 is provided around the valve stem whichthrusts at its outer end against the head 17 andl which exerts its force at its inner end to hold a packing or .packing washer 2O firmly against the bottom of the bore 14 and around the opening in the bonnet through which the stem 9 passes. The spring doesnot thrust directly against the packing 20, which by the way, should be a soft vegetable packing, but it thrusts against to the cam 24 by means of set-screw 2T (see Fig. 3)

Vhile l realize thatl it is common in mechanism of different kinds to employ cams to actuate any part which is to be moved, special attention is called to the features olf construction of the cam 2e, as illustrated in Fig. 3. The portion 28 of the operating face* of the cam which corresponds to the angle is abrupt or steep as compared with the remainder of the operating face of the cam, and, hence, a movement of the lever l2 through this small angle will result in relatively rapid movement of the valve. rhe portion 29 oie the cam, which corresponds to the angle 3,/ is shaped to produce very slow movement of. the valve. In other words, in closing the valve, the movement of the lever l2 through the angle a; willmove the valve rapidly to a position where it is substantially closed, or in engagement with its seat, while a continued movement of the said lever after the valve has been brought to the position suggested will move the valve slowly and with great force into tight contact with its seat and insure that it will not leak when closed.

The 'valve disk 7V may be provided with a boss 30 where it is secured to the stem and where such a. boss is used l provide a recess or a counter-sunk bore 31 in the bonnet to provide clearance 'for the boss and permit the very complete opening of the valve such as that indicated in Figure l.

The bore 22 between the forks 25 of the bracket 13 becomes transformed into two oppositely disposed grooves or guide ways 32 which receive the opposite sides of the round member or ball 23,

T he lower side of the valve may be ormed into a threaded nipple 33 to which a hose may be attached if desired where it is not convenient to drain the tub directly into a It will be noted that the spring i9 performs a double function: It operates to open the valve and it also operates to exert thrust upon the rigid. washer 21 which holds the packing against the packing seat which is formed by the bottom of the bore 14.

It is understood that the embodiment oi the invention described herein is only one ot the many embodiments my invention may take, and I do not wish to be limited in the practice of my invention, nor in my claims to the particular embodiment set forth.

That claim is: Y

l. A quick-opening valve comprising the combination of a valve-body having a valveseat with an opening therethrough, a bonnet detachably secured to the body, a stem guided to slide through the bonnet having a head at its outer end, a disk carried at the inner end of the stem adapted to come upon the seat to close the valve, a bracket secured to and' projecting outwardly from the bonnet and having a bore. receiving and guiding said head, said bracket having apair oi forks, a lever rotatably mounted in said forks, a cam rigidly secured to said lever and motilited vbetween said forks, a round. body guided in said bore'and received between the cam and the head to impart movement from the cam to the stem to force the valve disk upon the seat, and a coilspring around the stem for moving the stem to open the valve.

2. A quick-opening` valve comprising the combination ot a valve-body having a vaiveseat with an opening therethrough, a bonnet detachably secured to the body, a valvestem mounted to slide through the bonnet and having a head at its outer end, a disk carried by the inner end of the stem and adapted tocome upon the seat, a bracket secured in Yand projecting` outwardly -from said bonnet and having a bore receiving and guiding said head, a packing disposed around the stem, a. spring located in said bore disposed around the stem, thrusting against the head and exerting its pressure against the packing, a cam carried in said bracket Yand having a lever for operating` t-he same, and a round body guided in the bore of said bracket between the head and the cam.

3. A quick-opening and closing valve coinprising the combination oi a casing having a valve-seat with an opening therethrough, a valve mounted within the casing and guided to move toward 'and from the seat, a lever supported on the casing, a cam actuated thereby and co-operating with the valve to move the same toward its seat, a spring for moving the valve away from its seat, said cam having a portion of rapidly increasing height adapted to move the valve quickly onto its seat by movement of the lever through an angle representing less than one-half of the throw of the lever, and a portion increasing in height less rapt?di)V immediately following the iirst named cam portion and adapted to move the valve gradually when it lies upon its seatz In testimony whereof, l have hereunto set my hand.

Josera Massima,

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