US1610143A - Pump - Google Patents

Description

Dec. 7,1926. 1,610,143

- W. A. MINOR PUMP I Filed Jan. 2, 1926 .J INVENTOR BY I 42019 ATTORNEYS 'f1.;om..the qair cylin'der leaks out; A further fob j'ect' of .theinvention ,is to ',.';p1-eyide1 float wntreneamwe' between the. "air chamber and 1116, pump cylinder. wliichiwill. I shut; ofi

we in... ,1926; I

' n Alpplication. January The present invention relates'tofl-punips? (and. more particularly to the type "in which fthe' cylinder has an air chamber connected; to: the-upper endthereoffor th'egpurpose of f I absorbing the 'fluctuationsl in the-.waterzde- 4 'f live'ry. :An object. of ;this invention' is to prevent 'theiwaterflogging or fillingofthe; .;air,.cha1nber Iwithwateriin.the event the air 5 fiche ainc'hamber :Jwh'en the Flatter becomes in- ...eliectiveLdue to the leakage ofair therefrom. l5 Still another obj ecti of the" invention is to provide 'means for draining the pump; belowfl a, floatcontrolled valve. between'theiair chain-1 iber and the cylinder span. thei stopping of.

r l thep;iimp o that the. airchambenmaybe.

refilledwithair. I I

,TOEthese and f'other ends,{the

. 'parts,l.allfof which will -be-ihereinafterf-de- W Figgjliillustrates in the appended claims; .I. ra ng= Q p a, fragmentary section of a pump' constructed in accordance with this a scribed: .the no'vel features beingv pointed out,

invention; and

' Fig. 2 IS a sectional view of the back pressure check valve.

Referring morejparticularly toithe illus V turnlsurrounded by the, tubular casing 9.

VJithin the cylinder 8 operates as usual two valve pistons or buckets,;the lower one of which is operated through arodj(not shown) and extending upwardly through the upper piston orbuoket and through the hollow rod l5 connectingwith the upper bucket. This hollow rod is guided through a packing 16 on a plate 17 which closes the topof the discharge head 3. The operating mechanism for the rods may be of anysuitable construction. 7 Rising from the bottom plate' of the frame 2 is an upright member 26. 1 1

f goiiltr;

. nven v consists of certain parts andlcomb nat onsot ctfas; fagcushion. or absorbent .ior 'fluctum thejch mb r}n tion y .u e t but .anac detriment in lth'e .zpperation of, the as it accentuates 'vt-he fluctuations in the water olumni it i ons of'the fluctuations willnot take place,

airgchamber and" permitting air to enter therein; after. the draining takes. place.

kventionthe air chamber 37 .is formed in the upright26 which'is provided'at its lower endwitih anenlarge'd portion having a partiassreivon To-Lnnrvranra n, mam

ftionsflin l the water delivery. gl/Vhen this. chamberis;formed from cast-iron, the air gra'dually flealrsj through: thev porous jwalls and as amme eme the chamber becomes 1 filled Withater;oriwaterloggeoh rendering, i

I @5111 this invention,, provision is made for lclosln'g'ofitheixauchamber as thewate'r'ap 7 I preaches the: chamber,- so that the 'accentuaflnfthe[illustrated"embodiment of the ini ary,, to'-providej an "air =c' h'amber which corn inunicatesfivith'the'upper end of the cylinder provision" being made torv draining the, pump 1 laloovethe .check valve in the discharge pipe after the pump has ceased operation, jwhile at'the, same time efliectinggthe opening ofthe ftio n:"38 therein. This "partition has aipas- *-'-s'ageway"39"about.jvhich a valve seat 41 is formed below the partition; "With 'thi'sjvalve seat, a'valve member 43 cooperates, said valve member being mounted on a stem 44: guided inthe partition .38. In the chamber 45be1OW the partition 38, a fioat46 is ar ranged, this float being mountedon the stem AC4, so. that when the chamber 45 fills with soy 'waterth'e'float will rise and move the valve memberitg' against the seat 41. The float .46 also. acts asfa weight to causethe valve member 43 to open, at the same time, per;

mitting: said valve member to. move' 'upwardly.- A plunger l7 guidedflinthe wall of the chamber 37 may be employed for'engaging withthe valve stem 44 in orderto hold the valv e member 43"open. Q The chamber 45 connects by apassageway 4L8 with the discharge head .3 so that: the fluid pressure in the head provides compressed air in the passageway 48 and chamber 4c5 vas well as in the compressed air chamber 37. {Should 'water fromthe discharge head 3 pass by way ofthepassageway 48 to thechamber 45', it will act on the float 46v and move the .valve member43 toward the seat ll, closing 5' the passageway between the chamber and;

the chamber, so that the will 'theIiY VJhat I claim as my inventionianddesire act independently of the air chamber'ii'f, but sees not to have its fluctuations accentuated. lVhen" the pump stops, thewater, in

the upper'portion "of the cylinder 8 will be drained ofi' by way of the leak port4 9, the

water which has been dischargedffrom the t "the same time,

sageway 48 and the discharge head, as well as to the chamber 87 by way of an air inlet passageway 50 which is normally closed by "thecliamber' lat passageway 48, headv 3 and.

to secure byLetters' Patentisr l 1. A pump comprising'a cylinder, an air chamber at the upper end ofthexcylinder for absorbing the fluctuations in the'water cola umn of the pu1np,fland means fora'utomatically cutting-oil'said "air chamber from the cylinder when thewater rises to a certain point in the "system'and before the chamber becomes ineii'ective as a fluctuation absorbent medium.

chamber connecting with the .upper end of the cylinder for absorbing the fluctuations 2. A pump comprising a cylinder, an air in the'water deliveryof thepump,-and a float x a valve member 51. and held closed by the air pressnrewithin the chamber 45,

, From the foregoing it will be seen that there'has been provided a' puinp in which the colnmn of water is sub ect to an air pressure p in an air chamber at the" upperend ofthisv column, this air chamber having'a valved connection with the cylinder of the pump and the valved connection being controlled by a float which will automatically shut off; the air chamber in the: event that the air chamber becomes useless. Provision is also made for draining the pump below the. air

chamber when the pump is stoppe d so that' the" valve may again open so as to provide communicationbetween the air chamber and 'the cylinder, a check valve being provided in the discharge lineof the pump so that water from the discharge line may notfiow hacli into the pump cylinder during such drainage.

Provision is also made for! the admission or air to the air chamber and that I portion of the pump above the 'drain opening 7 upon the draining;

-valve controlling the communication ofthe' chambe'rwith the" pump cylinder.

A pump comprising acylinden-an air chamber communicating with the upperlend of the chamber, axvalv'e controll ng said-coininnnication, and a 'fioat, connected to said valve and normally holding said valve open and moving the valve tO'its'seat toclose 0d communication between'the cyl nder and the air chamber when the water rises toa'certain level.

A. A pump comprising acylinder, anair chamber communicating with the upper end of the cylinder, a check valve in the discharge of the cylinder, a float valve control:

ling communication between the cylinder and the air chamber, a drainingdevice connected with the cylinder below the float valve so that the float valve'after being closed may. automatically open upon thestopping of the pumping act on, and means for admitting air tofthe air chamber upon such draining.

' WILLIAM. A. MINOR.

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