US1609813A - Power diaphragm pump - Google Patents

Description

Dec. 7,1926.. 1,609,813

.1. c. GORMAN v POWER DIAPHRAGM PUMP4 Filedreb, e. 192e 2 sheetshem 1 J. C. GORMAN ngc, 1, 192e. 1,609,813

POWER DIAPHRAGM PUMP Filed Feb. a. 1926 2 Sheets-Shea?l 2 Patented Dec. 7, 1926.

PATENTA OFFICE.

.TAIVIIElS C. GORMAN, 0F MANSFELD, OHIO.

POWER DIAPHRAGM PUMP.

Application filed February This invention relates to pumps, and more particularly to power diaphragm pumps especially designed for pumping muddy water out of trenches, foundations7 bridge footings and excavations and for general drainage purposes.

One objectV of the invention vis to provide a simple, efficient and durable pump of the character referred to consisting o-f few parts which are adapted to be easily assembled or taken apart and in which the suction and discharge vvalves are easily accessible for cleaning purposes or for removing and replacing the diaphragm and suction valve.

, Other object-s are to provide a diaphragm pump having a base portion, a spout and a iack all cast or formed in one piece, with a ledge at the base of the jack on which the periphery of the diaphragm rests, together with means for clamping the diaphragm down upon the ledge, including a clamping ring which is removably secured and held in place by means of bolts inserted through radial projections on the clamping ring and radial extensions of the ledge of said main casting, conforming to the shape of the projections on the clamping ring so'that the diaphragm may be removed' and replaced without dismantling the pump by simply removing the bolts which secure said clamping ring tothe main casting andthe nuts on the ends of two bolts which secure the valve seat of the discharge valve to the diaphragm around a cent-ral discharge opening therein.

Another object is to provide a discharge valve having a ball-and-socket-joint connec tion with the valve stem to insure a perfect seating` of the valve when the parts are not assembled in perfect alinement as when the axis of the valve stem or the socket in which it is guided in its up and down movements in the plunger connecting rod is not exactly perpendicular to the'valve seat.

Another .object is to provide a suction;

valve which is yieldingly supported inoperable relation to an inclined seat formed on the inlet end of the suction pipe coupling in such manner as to be easily accessible for renewal or repairs or for cleaning; the valve being pressed toits seat by ay stent 8, 1926. Serial No. 86,890.

spring having one end seated against the ach of the valve and the other end seated against a superposed abutment on the main casting.

The invention will first be hereinafter more particularly described, with reference to the accompanying drawings. which are to be taken as a part of this specification, and then pointed out in the claims at the end of the description. f

In said drawings, Fig. l is a plan view;

Fig. 2 is a vertical sectional longitudinal elevation of a power diaphragm pump embodying my invention; Y

Fig. 3 is a horizontal sectional view, taken on the line 3 3 of Fig. 2;

Fig.l4 is a fragmentary detail view of a broken away portion of the pump, taken on the line 4 4 of Fig. 3; and Y Fig. 5 is a fragmentary detail view, taken on the line 5-5 of Fig. 3.' Y

Referring to said drawings, in which the same reference letters are used to denote corresponding parts in different views` the pump shown resembles in general exterior appearance the pump for which I have heretofore obtained Patent No. 1,447,074, but it differs therefrom very materially in im-A portant Yfeatures which will be hereinafter set forth. The letters A., .l and S denote, respectively, the base, the ack and the spout of my' improved pump, all in one piece, preferably a single'casting upon which is mounted, in suitable bearings, a crank-shaft B which is geared to a counter-shaft C which carries at one end a band wheel or Vpulley C1 for connection with a belt driven from a power engine or other driving means.

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tubular members f of a valve-seat castingr harlngf a central opening therein around which is formed an upwardly extendingr annular portion f1, which forms a seat for a discharge valve F, when brought into valveseating position. The lower ends of the bolts E and El are passed through the inner portion of the diaphragm H surrounding a central discharge opening therein andare screwed into interiorly threaded sockets in a plunger ringT or casting Gr, whilethe upper ends ot' said bolts have nuts c and ev screwed thereon tor holding' the assembled parts together. Vfithin the axiai hereof the connee/iig' rod D is sli'dabljv iitted'a valve stem l l'iavingil a bail-shaped lower "end z' 'and a stuling-'boxdke connection with the discharge valve, and a coiled or other suitable spring `K is placed on the valvesteni between the shitting-box and cross- 7 so rifiuto exert a yielding pressure on head lu the valve tending to force it `*to its seat, while permitting it to yield against counter pressure tending to raise the valve. The valve l" has a' facing ot' `flexiblei'naterial coi'isisting' preierablyoi standard sheet rubber packing; clamped between up'jier and lower members `or metal parts f2 and'f "which are secured together `by a fastening bolt f4 screwed therein. Gn the free end ot the bolt is s'c'rewe'd a locl: nut /i for hold.

iii'g; the several parts in assembled relation. The metal partor valve backingr f2 has a central hollow boss Tor 'hub-like projection f therein which is interiorly threaded and a "nut ,tf revoiutuj t"tted on the valve-stein l ovenyinm he ball 'a is screwed into said boss so as 'to provide a ball-an'd-socliet-joint connection between the valve anty `the valvestein `and provide means for holding pacing' 'inateriai around the ball-sha Jed end oi the valreisem. `ly these means the faire will always seat 'M tcurately, even though the axis ol" the bore in the cfmnectinpr rod ruidinge; the valve 'stem is not exactlyV p'erpen dicula'r to the valve-scat and although the valve-seat when bolted to the connecting rods E and El may not be iuiperi'ect alineinent with the val-`\'e,*as would otherwise he nec ary to insure a perfect seating ot the valve. The Vballandsocli'et-joint vconnection automatically takes care of any ini:i alinement.` The base portion of the main castingA is casU or v"formed with a water pas 'sage connecting the suction and discharge valves \"\"hieh 4are *placed therein, and 'the e vaive actuating 'mechanism i l ou the superposed jack vwith the comic'ctnr rod 'd Spind'in'g tlirouffli an `o"i'e`nin the ltop "thcrcot `and at the juncition oit the base and acl; there 'is formed 'a ledp-e1 :L on j which "isV seated the outer edge or 'peripheral portion of the diaphragm H, which is clamped betwee'isad 'ledge and 'an overlying clamping ring M which is pre erably constructed in two substantially semicircular parts `mf and m? having` laterally projecting apertured lugs m2 and vuf, respectively, which are co-incident with outwardly extended portions or projections 7 Tu of; the ledge L toprovide seats for the overlying claniping` ring projections, the latter being suitably apertured to register with apertures 4in theninderlying extensions ol the ledge to which the clamping ring is secured by set. `screws or bolts N inserted trom above through the registering apertures iu said clamping ringand ledge; said bolts having` nuts` u screwed on their lower ends on the underside of said ledge for securing the partstogetheig' as more clearly shown in l `1i1- lot' thedrawn'pjs.' As shown, dia1netrically opposite 'apertuied lugs on the two members oi the clamping ring` are so arranged that the lugs on one part will overlap and rest upon the corresponding lugs ol the 'other part'and the fastening bolts N at these two pointspass throligh the ovcr lapped J portions of the lugsvand through registering apertures in the underlying ledge on the main casting. The overlapping' 'portions of the lugs m and in, oi' the clamping' ring', at the pointiwherethe two "parts of the ring are joined together, are ol' wedge-shaped form, as shown in Fig. 5, so as not to weaken but `give the greatest strength possible at this point. yThe water passage in the base portion ofthe main casting terminates `atene` end in a tubular boss or projection 0 to which is secured in any suitable manner ya reinova'ble cap-plate or cover o, preferably by means of bifurcated lugs 0l formed on theoutside'oic the casting` and adapted to receive fastening bolts 0 which are rscrewed into nuts fitted in 'suitaoie recesses in said lugs 'toiprevent rotation ot' the nut. ylhe 'terminal ot' the water pas sage dianfetrica'l'ly opposite the closure 0 is in the lorm o'l a tubulin' projection l)` which has an end tlange p and an opening [Il in its top, overl which littcd a cover-plate R for closing said opening. A suc'tion pipe couplinfar 'if is bolted or otherwise secured to the llange y; of the tubular projection? tor the attachment thereto otailiose or suction pipe. The 'suction coupling T has au oblique or inwardly Ninclin'ed inner -end' portionY against.whichis seated a valve'U "which preferably has a metal back 'ua-nda rubber sheet facing al which is secured toa block V which in turn is secured on the upper side of the inner end otth'efsuction coupling- T 'by means `otf aset 'screw vLiso that bjvremoving 'the cover R the valve U may be removed bysiinply unserewinpr the set screw fr. On themetal backgfw otfthenvalveU is toi-med a boss' a2 against which isseated one end oa stout coiled or other suitable spring lV, `for "forcing the valve tov its lseat; the other end of the spring being seated in a i sa recess w on the underside ofthe main casting.

I thus provide a very simple and inexpensive suction valve construction in which the valve is yieldingly pressed toward its seat by means of a spring which is supported between a boss on the back of the valve and a superposed abutment on the main casting without other fasteningmeans.

Some of the advantages of a pump of the described construction over diaphragm pumps as heretofore ordinarily constructed may be enumerated as follows. AIt consists of comparatively few parts of simple design adapted to be easily assembled or taken apart, thus reducing the cost of manufacture and the time required in assembling and securing the several parts together. Easy ccess to the interior of the pump is afforded by simply removing the cover of the cleanout opening, and the diaphragm may be removed and replaced without dismantling the pump or removing the jack or spout. Easy access is afforded tothe suction valve for cleaning or removing it to replace a worn or broken part. Increased strength and reduced cost of manufacture are attained by constructing the base, jaclr and spout in a single piece, and simplicity and strength are combined in the general arrangement of parts.

The discharge valve, which isguided entirely by its upward projecting stem, gives a full, free, non-clogging discharge opening so essential to continuous uninterrupted operation of the pump, and this valve is spring loaded to insure quick action. rlhe raised, rounded seat of this valve will not permit particles to lodge on it and thereby prevent the valve from closing so as to destroy the suction. rlhe suction valve is alsospring loaded for quick action and its seat is in such oblique position that solids will not remain on it.

Having thus desrribed my invention, what l 'claim as new and desire to secure by Letn ters Patent of the United States is: .Y

l. ln a diaphragm pump, a combined buse, jack and spout formed in one piece with a ledge uniting the baseand jack; said base being hollow and of approximately square forni and having a. water passage therethrough. andsaid jack being bulged at the corners of the hase so as to form f therein coincident with apertures in said ledge, a. clamping ring arranged to rest upon the periphery of a diaphragm resting.;Y on said ledge and having radially extending apertured projections coincident with said recesses, and fastening bolts in` suted through the apertures in said projet: tions und ledge for clamping the periphery of the diaphragm between said ring and ledge.

2. rlhe combination7 in a diaphragm pump, of a combined base, jack and spell formed integrally with a ledge uniting t base and jack; said base being hollow and of approximately square form and having a. water passage therethrough and the vertical wall of the jack adjacent said ledge l. eing bulgcd outwardly so as to provide recesses on the inner side thereof at the corners of the base, a diaphragm fitted within an opening through the top of said base with its peripheral portion resting on said ledge and carrying a discharge valve controlling the outlet from said passage, a clamping ring resting on said peripheral portion of said diaphragm and having radial projections coincident with and protruding into said recesses, and fastening bolts inserted through registering apertures in said projections and ledge for clamping said diaphragm between said ring and ledge.

3. ln a diaphragm pump, a combined base, j aclr and spout formed integrally with ledge uniting the base and jack; said base being hollow and having a water passage therethrough and provided at Yone side hereof with an integral tubular projection having an inlet valve seated therein, a clamping rino' resting onY the periphery of a diaphragm resting on said ledge, bolts passing thro-ugh registering apertures in said ring and ledge for clamping said diaphragm therebetween, and a discharge valve centrollinfii` the outlet from said, passage through said diaphragm.

d. ln a diaphragm pump, Va combined base, j acl; and spout formed in a single piece with a ledge uniting the base and jack; said base portion being hollow and having a water passage therethrough and an integral tubular projection atone side thereof .having an inwardly-opening suction-valve seated theren and also having on its underside adjacent `said valve an integral inwardly inclined abutment, a coiled spring having one Y end seated against said al'iutn'ient and its otl er ond seated against the back of said valve, a clamping ring resting on the periphery ot a diaphragm resting on said ledge. bolts. passing through registering apertures in said ring and ledge for clamping said diajfihragm therebetween., and a discharge valve controlling the outlet from said passage through said diaphragm,

5. rThe combination, in a pump, of a combined base, jacl; and spout formed integr-all)7 with a ledge at the .junc- V tion of the base and jack; said base Abeing hollow and of approximately square form, and said ledge having outwardly extended projections at the four corners 'thereof Vwhile the vertiral wall of the jaclrat the base thereof is bulged outwardly coincident with said projections, and a clamping ring composed of substantially semi-circular diaphragm Vahle parts each having dizinieiicaly geheihj inftening belts inserted through posed oui'\\zud1y extending pirojeetifms* registering openings therein and in Said coincident with he projections on said ledge ledge. 10 :ind seated thereon Within the recess formed n tesimontK/f whereof I MH); my signu- 5 hythe bnl'ges; he projections on said ture.

damping ring having inclined surfaces fit ting: one upon the other and secured to- JAMES C. GGRMAN.

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