US1554759A

US1554759A - Quick-opening valve

Info

Publication number: US1554759A
Application number: US724261A
Authority: US
Inventors: Harley W Powell
Original assignee: Individual
Current assignee: Individual
Priority date: 1924-07-05
Filing date: 1924-07-05
Publication date: 1925-09-22
Anticipated expiration: 1942-09-22

Description

H. w. POWELL QUICK OPENING VALVE Sept. 22, 19250 Filed July 5. 1.924

- INVENTOR- flar/ey Powd/ A TIZORNEY Patented Slept. 22, 192.

UNITED SATES HARLEY W. POWELL, OF OAKLAND, CALIFORNIA.

QUICK-OPENING VALVE.

Application filed July 5,

T0 (ZZZ 107mm it may concern.

B it known that I, HARLEY VJ. PownLL, a ci men of the United States, residing at Oakland, in the county of Alameda and State of California, have invented certain new and useful Improvements in Quick tlpening Valves, oi which the following is a specification.

1 invention relates broadly to valves, and more particularly to that type of valve adapted for quick opening.

In comn'zercial laundries and the like places where a great deal of water is used intermittently throughout the day, it is very important as a till'lfi-Slfililg factor to employ valves that can be opened and closed in the least time and with the least effort to maximum open and closed positions, so that the filling of. tubs, washing machines and other washing apparatus may be accomplished with a quick-flooding, so to speak.

As laundries use large volumes of water, they are generally supplied with the same from their own wells, and which water is stored in elevated tanks, and of course by reason oi such storage means, the water is supplied to the piping system under co1nparatively low pressure. This then necessitates a quick-opening valve for eflicient re sults throughout the laundry, as one man may be taking care of a dozen washing machines, so it is evident such an operator needs equipment 01 the character of my invention. Furthermore, because of the constant operation of the valves, it is essential that they be very durable and free from the necessity of frequent regrinding.

Therefore, from the above, the two major objects of my invention are to produce a quick-opening valve for immediate flooding, and designed to substantially eliminate valve-regrinding.

Another object is to house the valve parts in a simple and shallow cylindrical casing, adapting the cover for the casing to carry the said parts for accessibility to the interior of the valve when the cover is removed and without disturbing the piping system in the least. A

A. further object is to construct the valve with two ports, each port covered with a valve thus insuring a double-seal against leakage.

A still further object is to construct the cover with stops to limit the valve-operating movement to substantially a 90-degree turn,

1924. Serial No. 724,261.

and permit the casing to be free of obstructions for ease in boring the same.

I will now describe an exemplifying construction in which the invention is embodied. This is the best form that I have devised up to the present time, but it should be understood that the invention is capable of embodiment in other forms.

In the drawings: Figure 1 is a plan of the valve, with about one-half of the cover broken away to show parts of the interior;

also a portion of the casing is broken away to show the outlet port in cross-section.

F 2 is a vertical diametrical section of certain parts to illustrate in detail the invention; other parts are shown in full lines.

Adverting to the drawings: The numeral 3 designates the casing of my invention, and which is preferably a cylindrical casting of shallow depth and having an open end 4 and a closed end The casing is bored as at 6 and may have cast or machined counterbores 7 and 8. In the side of the casing are tapped ports 9 and 10, here shown diametrically opposed though they need not be in every case. 11 is the inlet pipe and 12 the outlet, by reason of the fact that one generally turns the valve-lever counter-clockwise to open the valve.

To the open end 4%.- of the casing I secure a cover 13 as by machine screws 14 or other suitable means, with a gasket 15 therebetween, if desired, for sealing purposes. To the inside central portion of both the cover 13 and the closed end 5, are formed bosses 16 of equal depth for a purpose to be later described. On the outside of the cover is a threaded boss 17, to receive the usual stuffing-box gland 18 enveloping any suitable packing 19, and compressing the same about the valve stem 20. 21 is a leverhandle mounted on the end 22 of the stem and secured thereto as by set-screw 23, Fig. 1.

Between the heretofore mentioned bosses 16 is positioned the symmetrically formed valve means, comprising a rod-member having arms 24 radiating from a body 25. Each arm freely supports

duplicate valves

26 and 26 having cylindrical peripheral surfaces 27 in register with the bore 6, and of size to suiliciently cover the ports 9 and 10. Each valve has a boss 28 extending inwardly having a central hole 29 deep enough to provide a clearance space 30 at the end of each arm 24.

lnterposed between each valve boss 28 and the body 25 and encircling the arm is a coil spring 31, compressed to a desired degree to outwardly hold the

valves

26 and 26 in tension against the bore 6 for valve-seating purposes. At the base of each valve boss 28 is a series of holes 82, to admit water to the clearance space 30 to effect the utilization of the water pressure in the casing on the valve area thereat. litter the valve means is properly positioned inthe casing with respect to the ports and the counterborcs and the valve stem 20, the set-serew 33 through the body 25 effects a securement of the said valve means as a unit on the stem 20.

On the underside of the cover 13 are cast a pair of stops Sat and 35 and so positioned as to limit the angular movement ot the valves. In Fig. l the ports are shown closed, the valve 26 hearing against the stop 5-35; and when the handle 21 is movec to the dot-andlash position. the ports will he open and the valve 26 will abut against the stop 34.

In operation, the head of water at the inlet will exert some pressure on the valve .urtace 2? and tend to press the valve inwardly but the coil-spring 31 can be made strong enough to more than overcome the pressur head. Thus, it will be observed that if the handle 21 is moved throughan are 0t 9t) degrees. or even much less it desired. both valves will be unseated and the full flow of water el'l'ected; and on reversing the handle, double sealing will he etlected against leakage of water through th outlet, and the trapped water in the casing will exert its pressure in all directions equally and will further tend to seat the valves in conjunction with the coil-springs 31.

While I have thus described the preterred "form of my invention, I wish to have it understood that changes may be made within the scope of the claims hereto attached without altecting the spirit of the invention, therefore, what I claim as new and desire to secure by Letters Patent 01 the United States is the followin i. A quick-opening valve of the class deribed, comprising a cylindrical casing of relatively large bore and shallow depth, the casing provided with opposed inlet and outlet ports, a valve 5501' each porthaving a continuous valveseat rac for cooperating with the cylindrical casing, the casing provided with a closed bottom and 01 en top a cover tor the casin a central inwardly projecting boss formed on said cover and a er boss on said casing bottom, a valve stem supported in said bosses a solid transverse rod spaced midway in said casing between said losses and secured on said stem, sa'd valves raving inwardly projecting bosses ol equal l: nth, earh boss bored to receive an extremt' the trai 'erse rod, said rod having j-llOliLlQiS torn'ied thereon equidistant from s center, a pair of coil springs'concentrically mounted one on each end of said rod and between said shoulder and valve boss and each of said springs adapted to hold the valve in seating engagen'ient with the casing bore, and the said cover provided with stops to limit the angular movement ot the transverse rod for the quick opening of the valve.

2. A structure as set torth in claim l, and in which each valve boss has a bore of greater depth than the portion of the transverse rod received therein, and each va ve boss provided with an additional bore leadiue' to the interior oi the casing to eliect the utilization oi? the all water pressure on the valve and to provide a floating connection tor the valve on the rod.

In testimony whereof I attix my signature.

HARLEY RV. PGlVlGlili.