US1024093A - Cock or faucet. - Google Patents

Description

H. MUELLER, 132cm. 0. B. k A. MUELLER, EXEGUTGRS. COOK 0R PAUCET.

1,024,093. APPLICATION FILE-D DEC. 1, 190B. 23, I 2 SHEETS-SHEET 1.

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HENRY llitUEI-LER OF'DECATUR, ILLINOIS; ORA IB. llIUELLEB AND ADOLPH MUELLER, EXECUTOIRS F SAID HENRY MUELLER, DECEASED, ASSIGNORS TO H. MUELLER MANUFACTURING COMPANY, OF DECATUR, ILLINOIS, A CORPORATION OFILLINOIS.

coon on saucer;

Specification of Letters Fetent.

Patented Apr. 23, 1912.

Application filed December 1, 1908. Serial No. 465,545.

To all 107mm may concern:

Be it known that I, HENRY MUELLER, a citizen of the United States, and resident of Decatur, Macon county, State of Illinois, have invented certain new and useful Improvements in (Jocks or Faucets; and my preferred manner of carrying out the invention is set forth in the following full, clear, and exact description, terminating with claims particularly specifying the novelty.

This invention relates to water distribu tion, and more especially to cocks and fanoets having reciprocating valves; and the object of the same is to prevent hammering or chattering of the valves which control liquid under pressure. To an extent it is an improvement:- on or elaboration of the invention set forth in the Letters Patent granted to me September 21, 1909, No. 934,620.

The invention consists essentially in a cup which is perforated near its outer open end,

and whose body iits snugly but slidablyaround the valve and incloses its rear end so to produce a nearly water-tight chamher for the purposes set forth below, and it consists incidentally in the structure of the various valves with which this idea may be employed and the details for carrying it out,

all as described in thefollowing specification and illustrated in the drawings where- :n

Figure 1 is an elevation of a Fuller bib cock embodying my invention, a part of the cock body being shown in section to expose essential and generic elements, and this view illustrates the position of parts when the- Fig. l and showing the parts in the position they assume when the cup has been seated and the cock is partly closed; Fig. 3 is a similar section through partof a cock of this kind illustrating a yet different type of cup adapted to be seated by a spring, this view showing the position of parts when the cock is wide open; Fig-A is 'a sectionthrough annpright cock whose stem is reciprocated to open the valve by pressure on a knob and to close the valve by the expansion of a spring, this view showing the parts in the first position they assume as the valve is being opened;'Fig. 5 is a similar view of the same cock showing the second position of parts as the valve 18 being opened; Fig. 6 is a similar view of the same cock showing the position of parts when the valve is completely opened; and Fig. 7 is a detail view giving a side elevation of the cup shown in Fig. 1.

The cock body 1 comprises two members, of which the'outer one 3 may screw into the inner one 2 so as to leave a valve seat 32 atthe inner end of the outer member as in Fig. 1, or this valve seat may be' formed in a partition 320 in the outer member below the spout or outlet 0 as in the other views.

In any event-it is surrounded by.;a shoulder Y 31, and the valve stem 5 lcads through the seat to the valve head 9 which carries the Fuller ballG or the valve ring (50, of which either is adapted to contact witlrthe seat, the head beingheld to the stern by a nut 8 thereon or a screw 80 taking thereinto as will be clear. In the Fuller type of cock the stem may have lugs 51 to guide itin,

its movements within the member 3, and in the other types of cooks the stem tits slidably through the seat 32 and there has grooves 50 so that when the valve is opened the liquid can flow through the seat. The inlet of water is through the axis of the body as indicated by the arrow, and it will be clear that by turning the handle H or depressing the knob H the handle shaft S will be reciprocated so that the stem 5 will he moved longitudinally to open or close the valve in Fig. l or to open itin the other views where a spring S assists the inlet pressure in closing it.

It is the object of the present invention. to prevent hammering or chattering of the valves in cocks of various types, to which end I employ the following structure: 'Vithin the cock body and out of contact-with its inner wall a cup 10 whose closed end 10' is directed toward the inlet whereby it is subjected to the impact of the intlmving water, and stands in rear of the valve head and may abut against a fixed stop when the valve is open; and this stop may consist. of a pin across the cock body,

lugs 40 within it, or a strainer 400 which may be located within the base of the faucet as best seen in Fig. 4. The cylindrical wall id of this cup rather closely but loosely surrounds the valve head 9, and its open end is adapted to seat against the shoulder 31 when the cup is drawn forward by the movements of parts as described below. The cup is provided in its side walls with erforations as indicated, at these perlorations being slightly in rear of its open end. as shown, and which may he in stag "cred relation to each other indicated in ig. 7, and their size and number proportionate to the requirements each individual case. The

- closed end or the run rna be stamped in slightly concavdconvex form as shown at 10*, or it n v have an axial projection 10 on its er as shown in Fig. 2; and the valve head S may contact with said closed end by a nut 23, the head of a screw 80, or the tips or pins 800, all serving as studs which project from said valve head.

In Fig. 3 a spring 41 is located. between a shoulder 42 in the base of the cock and the closed end of the cup and presses the latter toward its seat which is the shoulder 31; but in this and other views of the drawings herewith the pressure of the inflowing liquid and its impact against the cup tends to close the cup against its seat, and the spring is not always necessary.v When a spring is employed the projection on the closed end of the cup is useful for centering the spring, as shown in Figs. 3 a :1d 6. The on is of such length as to have some play longitudinally upon the valve head, around whi h its fit is as close as a free sliding connection will permit, whereby a sutlicient amount. of water may pass through the perforations, between it and the valve head, and into the closed end. of the cup, and yetits passage either way will be restricted. As shown in the drawings, there is an open annular passage between the outside of the cup and the inside of the cock body through which the liquid flows when the cock is open. In Fig. 1 this cup is shown as mounted slidably over and around the Fuller ball, and the nut 8 serves as the stud. In 2 and 3 it is shown as mounted around valve head, and the latter has one or more pins 800 which constitute the stud. In Figs. l, 5, and 6 the cup is also mounted slidably around the valve head, but the latter is here shown as having a tubular stem 51 which. passes through the valve seat 32 and is grooved at 50, while the handle shaft abuts againstthe upper end of the stem and the latter is attached to the valve. head by a screw passing through the head and its stem and taking into the handle shaft. The head of this screw serves as the stud in a. cock of this character, and by preference the valve head and itsstem have some lost mo truted 1s that the cup slidablv mounted P around the valve head which latter carries a stud so as to form a chamber within the closed end of the cup, and this end is presented toward the pressure so as to be subject thereto, whether the springs of Figs. 3 and 6 are employed or not.

In operation the parts stand with the valve open as seen in Figs. 3 and 6, and the wateris flowing in through the axial inlet, against and armind the cup, past its front end, througl'l the seat 3:2, and along the grooves 50 if they are employed. In closing the shut oil", the first movement of the handle shaft draws the valve toward its seat and carries the cup with it by reason of the fact that the inlet to the space between the valve and the bottom of the cup is restricted and there is a tendency to form a vacuum therein. The parts are shown with the cock partly closed in Fig. 2, wherein this first movement has carried the front end of the cup into contact with the shoulder 31 but the valve has not reached its seat, and therefore the perforations 10 yet per- Init the passage of a small amount of water from the inlet around the valve and through the seat. Further movement of the handle shaft finally carries the parts to the position shown in Fig. 1,'and during this movementthe valve has been drawn forward within the ,cup. This tends to create a vacuum within the cup, and such vacuum sucks in water through the restricted s nie'Fbtween it and the valve head, and therefore retards the final closing of the valve and prevents water hammer.

A reverse movement of parts obviously first'carries them from the position shown in Fig. l to the rear until the bottom 10 of the cup strikes the stop, after which the continued movement of the handle shaft will. slide the valve head rearwardly within the cup and slowly expel the water accumulatcd betwcen them in 'av maner which will be clear. As the valve head and cup leave the seat and shoulder simultaneously the cock will be opened quickly, but the further movement of the handle shaft to restore the parts to the wide open position of the cock will be retarded by the slow expulsion of Water through the restricted passage between the valve and cup. The purpose'of the stud is to prevent the valve head from opening so wide that it would expel all the water within the cup, which might possibly cause the parts to stlck. In my former construction the open chd of the cup was notcl ed or made irregular and the shoulder fiat in the present case the use of the perforations 10 a little in rear of the open end of'theY'iipjieTinits the shoulder to stand a little beyond the valve seat so that the valve may make reliable contact therewith. even though it be a valve ring of such soft material that it is pressed slightly o'vc-r'the outer edge of the seat when closed tightly.

.In the modified form. of cock shown in Figs at, 5, and 6, the action of the cup with respect to the valve head is the same as above described, but the head itself has a certain lost motion. In ope1'iingthis cock the first movement of the handleshaft causes it to abut against the upper end of the stem so that the screw head descends within the cup and expelsa trifle of the liquid trapped therein, the liquid expelled being forced back toward the pressure. Further move- Ine'nt of the handle shaft next opens the valve and expels more liquid, but now that the valve is unseated as seeirun F 1g. 5 this water may run out through the valve seat along with what inflowing water' passes through the perforations. In this position of parts the screw head has reached the closed end of the cup as shown. Further 'moven'ient of the handle shaft carries the parts to the. position illustrated in Fig. 6, where the-cup has been forcibly unseated and the cock is wide open. Thus it will be seen thatby this construction the valve head and cup do not leave their seats simultaneously,

and the cock therefore becomes one which will -open slowly as .well as close slowly- 'thus obviating water hammer in any event.

What is claimed as new is:

1. In a liquid shut off, the combination with the cock body, a valve seat therein,'a valve, and a handle and shaft for, moving the valve; of a cup within which the valve is slidably fitted with a permanently-open restricted passage between the cup and valve, and an open annular space between the cup and the cock body, said restricted passage forming the sole liquid feed and discharge to and from the interior of the closed end of the cup, the cup having its closed end behind the valve whereby it is held thereon by suction, the wall of the cup having perforations near its open end. p

, 2. In a liquid shut-0d, the combination with the cock body, a valve seattherein, an annular abutment exterior of said seat, a valve, and a handle and shaft for moving the valve; of a cup within which the valve is slidably fitted with a permanently-open restricted passage between the cup and valve,

. and an open annular space between the cup and the cock body, said restricted passage forming the sole liquid feed and discharge to and from the interior of the closed end .of the cup, the cup having its closed end &

seat, the wall of the cup haying perforations ueai its open end.

fl. In a liquid with a.cock.body, a valve seat therein, a valve whose stem projects loosely through said seat and is grooved, and a handle and shaft for moving said valve; of a cup within which the valve is slidably fitted with a permanently-open restricted passage between the cup and valve, and an open annular space between the cup and the cock body. said restricted passage formingthe sole liquid feed and discharge to and from the interior of the closed end of the cup, the cup having its closed end behind the valve whereby it is held thereon by suction, the wall of the cup having perforationsnear its open end.

4. In a liquid shut-off, the combination with a cock body, a 'a'lve seat therein, an

abutment eftterior 'of said seat, a valve whose stem projects loosely through said seat and is grooved, and a handle and shaft for moving the valve; of a cup within which the valve is slidably fitted with a perinanently-open restricted passage between the cup and valve, and an open annular space between the cup and the cock body, said restricted passage forming the sole liquid feed and discharge to and from the interior of theclosed end of the cup, the cup having its closed end behind the valve whereby it is held therconby suction, and having a body longer than the valve whereby its open end will engage said abutment before the valve strikes its seat, the wall of the cup having perforations near its open end.

5. In a liquid'shut-oif, the combination with the cock body, a valve seat therein, an annular abutment exterior of said seat, said seat projecting beyond the abutment toward the inlet, a valve, and a handle and shaft for moving the valve; of a cup within which the valve is slidably fitted with a permanently-open restricted passage between the cup and valve, and an open annular space betweem the cup and cook body, said restricted passage forming the sole liquid feed and discharge to and from. the interior of the closed end of the 0111), the cup having its closed end behind the valve whereby it is held thereon by suction, the wall of the cup having perforations near its open end.

1'3. In a liquid shutoff, the combination with the cock body, a valve seat therein, an annular abutment exterior of said seat, said seat projecting beyond the abutment toward the inlet, a valve whose stein projects loosely through said seat, and a handle and shaft for moving the valve; of a cupwithin which thevalvc is slidably fitted with a permanently-open restricted passage between thecup and valve, and an open space between the cup and the cook body, said restricted shut-oft, the combimiticn ith passag forming the sole liquid feed and discharge to and from the interior of the closed end of the cup. the cup lltiYHiQ' its closed end behind the valve wherein it is held thereon by su tion. and having a body longer than the valve whereby its open end will engage said abutment before the valve strikes its seat. the wall of the cup ha Villg perforations near its open end.

T. lo a liquid shut-ott', the combination with the cool; body having a valve seat and surrounding abutment. a valve stem projecting: loosely through said seat, a valve head carried thereon and a stud on the inlet end of the head: of a cup within which the valve is slidabtv titted with a per1nanentlyopen restricted passage between the valve and cup, and an 0])!11 annular space between the cup and cool; body. said restricted pa sage forming the sole liquid teed and discharge to and from the interior ot the closed end of the cup. the cup ha vine its closed end behind the valve facing the inlet, said closed end being subject to the impact of the liquid, whereby the cup is held on the valve by suction.

8. In a liquid shut ott, the combination with the cool: body having a valve seat and surrounding abutment. a valve stem projecting loosely through said seat, a valve head carried thereby, and a stud on the inlet end of the head; of a cup within which the valve is slidably fitted with a permanently open restricted passage between the valve and cup,and an open annular space between the cup and cock body, said restricted passage forming the sole liquid feed and discharge to and from the interior of the closed end of the cup, the cup having its closed end behind the valve facing: the inlet, said closed end being subject to the impact of the liquid, whereby the cup held on the valve by suction, and a stop in the cock body for lim' iting; the opening: movement of the cup.

9. in a liquid shut-oil, the combination with the cock body ha vine a valve seatand surrounding abutment. a valve stem project ll'lg loosely through said seat, a valve head carried thereby, and a stud on the inlet of the head; of a cup within which the valve is slidably fitted with a permanently-open restricted passage between the valve and cup, and an open annular space between the cup and cock body, said restricted passage forming the sole liquid feed and discharge to and from the interior of the closed end of the cup, the cup having its closed end hehind the valve facin the inlet, said closed h end being subject to the impact of the liquid. whereby the cup. is held on the valve by suc tion, and a spring in the cock body engaging this end and pressing the, cup toward the abutment.

surrounding abutment, a valve stem projectin loosely through said seat, a valve head carried thereby, and a stud on the inlet, end of the head of a cup within which the valve is slidably fitted with a permanentlyopen restricted passage between the valve and cup, and an open annular space between the cup and cock body, said restricted passage forming the sole liquid feed and discharge to and from the interior of the closed end of the cup, the cup having its closed end behind the valve facing the inlet, said closed end being subject to theiuipa ct of the liquid, whereby the cup is held on the valve by site tion, said end havii'igr an axial projection, and a spring; in the cock body engaging this end around its projection and pressing the cup toward the abutment.

11. In a liquid shut-oft, the combination with the cock body having a valve seat. and surrounding abutment. a valve stem pr0- jecting loosely through said seat, a valve head carried thereby, and a stud on the inlet; end of the head; of a cup within which the valve is slidably fitted with a permanentlyopen restricted passage between the valve and cup, and an open annular space between the cup and cool; body. said rest rirted passage forming the sole liquid feed and discharge to and from the interior of the closed end of the cup, the cup having its closed end behind the valve facing the inlet, said closed end being subject to the impact of the liquid, whereby the cup is held on the valve by suction, said end having an axial projection,

and a spring in the cock body engaging this end around its projection and pressing the cup toward the abutment, said cup having its Wall provided with perforations near its open end.

12. In a liquid shutoff, the combination with the cock body having a valve seat and surrounding abutment, a valve stem projecting loosely through said seat, a valve head carried thereby, and a stud on the inlet end of the head; of a 01]) within which the valve is slidably fitted with a permancntly-open restricted passage between the valve and cup, and an openannular space between the cup and cook body, restricted passage forming the sole liquid feed and discharge to and from the interior of the closed end of the cup, the cup having its closed end behind the valve facing the inlet, said closed end being subject to the impact of. the liquid, whereby the cup is .held on thcvalve by suction, a spring in. the cock bodv engaging this end and pressing the cup toward the abutment, and a stop in. the cock bod) t'or limiting the opening movement of the cup.

13. In a liquid shut-oil, the combination with the cock body having a valve seat and surrounding abutment, a valve stem projecting loosely through said seat, a valve head carried thereby, and a stud on the inlet end of the head; of a cup withinwhi'c'h the valve is slidably fitted with a permanently open restricted passage between the cup and cock body, said restricted passage forming the sole liquid feed and discharge to and from the interior of the closed end of the cup, the cup having its closed end behind the valve facing the inlet, said closed end being subject to the impact of the liquid, whereby the cup is held on'the valve by suction, a spring in the cock body engaging this end and pressing the cup toward the abutmerit, and a stop in the cock body for limiting the opening movement of the cup, said cup having its wall provided with perforations near its open end.

14. In a liquid shut-off, the combination with the cock body having a valve seat and surrounding abutment, a valve stem projecting loosely through said seat, and a valve head carried by said stem; or a cup Within which the valve is slidably titted with a per manently-bpen restricted passage between the valve and cup, and an open annular space between the cup and cook body, said restricted passage forming the sole liquid feed and discharge to and from the interior of the closed end of the cup, the cup having its cl(' 1 end behind the valve facing the inlet,

:losed end being subject to the impact or liquid, whereby the cup is held on the valve by suction, and a stop in the cock body for limiting the opening movement of the cup.

15. In a liquid shut-oil, the combination with the cock body having a valve seat and surrounding abutment, a valve stem projecting loosely through said seat,.and a valve head carried by said stem; of a cup within which the valve is slidably fitted with a per manently-open restricted passage between the valve and cup, andan open annular space between the cup and cook body, said restricted passage forming the sole liquid feed and discharge to and from the interior of the closed end of the cup, the cup having its closed end behind the valve facing the inlelasaid closed end being subject to the impact of the liquid, whereby the cup is held on the valve by suction, and a spring in the cock body engaging this end and pressing the cup toward the abutment.

16. In a liquid shutoff, the combination with the cockkbody having a valve seat and surroimding abutment, valve stem pro jecting loosely through said seat, and a valve head carr'ed thereby; of a cup within which. tile valve is slidably fitted with a permanently-open restricted passage between the valve and cup, and an open annular space between the cup and cock body, said restricted passa e forming the sole liquid feed and discharge to and from the interior of the closed end-of the cup, the cup having its closed end. behind the valve facing the inlet, said closed end being subject. to the impact of the liquid, whereby the cup held on the valve by suction, said end having an axial projection, and a spring in the cock body engaging this end around its projection and pressing the cup toward the abutment.

17. In a liquid shut-oli the combination with the cock body having a valve seat and surrounding abutment, a valve stem project ing loosely'through said seat, and a valve head carried thereby; of a cup within which the valve is slidably fitted with a permanently-open restricted passage between the valve and cup, and an open annular space between the cup and cock body, said re stricted passage forming the sole liquid feed and discharge toand from the interior of the closed end of the cup, the cup having its closed end behind the valve facing the inlet, said closed end being subject to the impact of the liquid, whereby the cup is held on the valve bysuct-ion, said end having an axial projection, and a spri'ng in the cock body engaging this end around its projection and pressing the cup toward the abutment, said cup having its wall provided with perforations near its open end.

18. In a liquid shut oil, the -co1nbination with the cock body having a valve seat and surrounding abutment, a valve stem projecting loosely through said seat, and valve head carried thereby; of'a cup within which the valve is slidably fitted with a permanently-open restricted passage between the 'alve and cup, and an open annular space between the cup and cook body, said restricted passage forming the sole liquid feed and discharge to and from the interior of the closed end of the cup, the cup having its closed end behind the valve facing the inlet, said closed end being subject to the impact of the liquid, whereby the cup is held on the valve by suction, a spring in the cocklbody engaging this end and pressing the cup to ward the abutment, and a stop in the cock body for limiting theaopening movement of the cup.

19. In a liquid shut-oft, thecombination with the cock body having a valve seatand surrounding abutment, a valve stem projecting loosely through said seat, and a valve head carried thereby; ot a cup within which the valve is slidably fitted with a permanentlyppen restricted between the valve and cup, and an open annular space between the cup and cock body, said restricted passage for ning the sole liquid feed and discharge and from the interior of the closed end of the cup, the cu p having its closed end behind the valve ing the inlet, said clos end being subject to the impact of the liquid, whereby the cup is held on the valve suction, said end having an axial projection, a spring in the cock movement of the valve,

the valve and cup, and an open annular space between the cup and cock body, said restricted passage forming the sole liquid feed and discharge to and from the interior of the closed end of the cup, the cup having its closed end behind the valve facing the inlet, said closed end being subject to the impact of the liquid, whereby the cup is held on the valve by suction, said end having an axial projection, a spring in the cock body engaging this end around its projection and pressing the cup toward the abutment, and a stop in the cock body for lin'iitingthc opening movement of the cup, said cup'havina its wall provided with perforations near its open end.

21. In a liquid. shut off, the combination with a cock body having a valve seat, an annular abutment external of said seat, a valve stem projecting loosely through said seat, a valve head carried by said sten'na handle and shaft, and connections between the head and said shaft so that the valve head has some lost motion; of a cup within which the valve is slid-ably titted with a restricted passage between the cup and valve, and an open annular SPUCO between the cup and cock body, the cup having its closed end behind the valve head, said end being engaged by said connections and held thereby away from said head during the opening movement of the valve.

In a liquid shut 0d, the combination with a cock body having a valve seat, an annular abutment external of said seat, a valve stem projecting loosely through said seat, a valve head carried by said stem, a handle and shaft, and connections between the head and said shaft so that the valve head has some lost motion; of a cup within which the valve is slidably titted with a restricted passage between the cup and valve, and an open annular space between the cup and cock body, the cup having its closed end. behind the valve head, said end being engaged by said connections and held thereby away from said head-during the openingand a stop on the cock body for limiting the opening movement: of the cup.

pressing the cup toward the ahutvalve.

In a liquid shut off, the combination with a cock body having a valve seat. an. annular abutment external of said salt, a tubular valve stem projecting loosely through said seat, a valve head carried therclrv, a handle and shaft, and a screw taking through the head and stem and engaging said shaft so that between the end of the latter and the head of the screw the valve head has some lost motion; of a cup within which the valve is slidably fitted with a restricted passage between the cup and alve and an open annular space between the cup and cock body. the cup havint;- its closed end behind the valve head, said end being engaged by the head at the screw during the opening movement of ti;-

Q-t. In a liquid shnt-otl', the tombination with a cock body having a valve seat, an annular abutment external 0t said-seat. a tubular valve stem projecting loosely through said seat, a valve head carried thereby, a handle and shaft, and a screw taking through the head and stem and engaging said shaft: so that between the end of the latter and the head of the screw the valve head has some lost motion; of a cup withinwhich the valve is slidably fitted with a restricted pas age between the cup and valve, and an open annular space between the cup and cock body, the cup having its closed end behind the. valve head, said end being engaged by the head of the screw during the opening movement of the va-lv and a Stop in the cock body for limiting the opening movement of the cup.

35. 1a a liquid shut-oil, the combination with the cock body, a valve seat therein, a valve, and a handle and shaft for moving the valve; of a casing having a closed end within which the valve is slidably fitted with a restricted passage between the casing and valve, and an open annular space between the casing and cock body, said restricted passage forming the sole liquid feed and discharge to and from the in erior of the closed end of the casing, the raisinghaving its closed end behind. the valve and having a body longer than the valve, the casing; being provided with a re riot-ed liquid passage in advance of the valve when the latter is in open position.

In testimony whereof, I have hereunto subscribed my signature, this 22nd day at September, A. D. 1908.

ll ENE Y Uh;

lVitnesst-s Vnaznna IIAMIL'ZON, J on): L vv ii tantrum.

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