US1036398A - Pump. - Google Patents

Description

W. WINTBRHFF.

'APPLICATION FILED EAB.. 29, 1910.

Patented Aug. .20, mi2.

-Zlfibws es both sies. The'eiasic if desire, be secured bv means 0f a mea ring positioned at the 'mi' cii'cumfnce said eistic ring and a ilu-aad, Wheraby the metal rii" be gmi'ialjy' screve-fi into the e miic ring :m pmiiy ino the waive-seat 'This -hifeafec' ring UNITE@ To all ywhom may oon/Jem f Be itv known that Vffiiimm HOFF, a subject of the Emperiir o Gmmany.,

residing at 5l Kronpi'inzeiisti-sss, dorf, Germany, have invend sei which the olowingg'A is :i specification,

The ixf'entimi herein presented iezifes a pump provided wi'h suction au@ ifslivefy "baile positioned @ne abm'e the @die ih@ upl per oi* larger delivery mi comming with a corespondingy dimension@ ca nai tuie of a reciprocating piston Such L; 'LA

through such opening.

' @ne of the objecs of Hm irv line the vaiveeas n? boh of wh ehxsnic rings mafie m" murali i@ @be c; hand,zv.iid on ie Qne. may be eariiy and v necessary, The cai beki fast in lie Wi securing imams oui permit honed. at the (rente-i of Such nimmer ibut he i" having become worn mi simply uvned over:

tion is iihisrated, 35; Way of eg 1 in whichi l Willis. and 2 repi'sn two my tionai views 0f thev pump, Ehe Swim-as bw mg zaken at righ anges 'to am mi :'Z.

The upper or larger bah .fz @im Dusse :im new and useful Impfuvemens iii Pumps? a manner that the lnwer or smaifer Suc im 'bail may be cmivemn'y removef by mimi l1 he Va'ive '.fo-is;

Giese. elas'iic seats, may be made of ass oi" the like, and fu-e mi :subject ,l and dm3 need not, :is hitiieiito be h a rubber coveiiig o? be inafe rg amies-viii* xi'iay.,

f 0i" rubber.

. L e `opening The tapez'ng 'ioi'iii one? pmt of tim pump ensfuleg iii@ iva or vaiwsd o always corr-abi? ifiiaover the diamte of iin@ may be so chos/en' in reiaion pump Cylindre?, als o -i, ppal* ba from becciming Seated surface of the pisfm, but to assume its correct posiihe apeue hereof.

upper of the pump cfmgiuced fo/mi of dmibe hood s; which' also This dou'fie himd;

u peredge of themetal ring oformsan a utmentffor ball a thereby preventing the ball from being pressed too firmly into the yielding ring la. .The elasticl seating ring for the suction valve or ball d may of course be constructed in lthe same or a similar manner.

As shown in Fig. L the elastic ring L which acts as a Seat fortlie-suction ball may attached to the valve seat in the following manner. .Arranged in the valve seat and around the clasticriiig are one or several annular lair passages p' communicating through a passage l] provided in the wall of the suction end of the pump with the suc tion chamber fr. During the working of the pump a vacuum is produced in the space I and consequently also in the passage or passages p whereby the elastic ring is firmly held to its seat.

The piston pump according to this invention is particularly adapted for thick fluids such as., paper pulp and the like, as

the balls or valves being of metal will always seat tightly on the yielding or elastic seating rings, evenin the event. of long fibers or the like entering between the ball and the seating ring. 'A further advantage of this pump, which renders it particularly adapted for the conveyance of paper pulp and the like consists in theA fact that the material operated upon is caused to move in a practically straight course from the suction end to the outer end, whereby Sudden deviations in directions of the flowing substances are avoided. Owing to the ball-sliaped form of the valves, the fiuid subsi'ance flows 'simply in a tangential direction past the balls and consequently is notahruptlyl deviated at points around the valves, whereby whirling andsimilar actions/are avoided.

The possibility of easily exchanging the valves and the elastic seating rings is more-"if" over of importance, particularly Where the pump is to be used/for substances of different consistency and color. This um moreover is v,conveniently applicab e or the evacuation of the suction rollers in paper making machines. In order to enable any liquid. that may be present in the pump prior to the removal of the valves and seating rings to be drainedof, a screw s is introduced from the outside into the suction end of the pump, so as to enable the suction valve d to be displaced and liftedof its seat in order to `free'the passage for the liquid to the suction conduit.

What I claim and desire to secure by Letters Iatent. is:

. 1. Y pump comprising a Casin a reciprocating piston therein provided ima central opening, having a grooved wall, an elastic ring positioned in said opening and having a rib engaging said groove and a yrigid threaded ring within said opening for assisting in holding said elastic ring in place.

2. In a pump of the kind described a re-.

ciprocatory'piston provided with a central opening,

having a grooved wall, an elastic seating ring adapted to tit in said opening and provided with a rib engaging 'said groove, and means for allowing the suction action of the pump to assist in main taining said'ring in correct position in the opening, substantially as setforth.

In testimony whereof I aiiix my signature in the presence of two witnesses.

WILHELM WINTERHOFF. Witnesses:

Bassin F. DUNLAP, LOUIS VANDORY.

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