US1486600A - Pump fire extinguisher - Google Patents

Description

March n ,wm

C. NUHRING PUMP FIRE EXTINGUISHER Filed Oct. 18

FWG-4 l 1 u l f I l u I l l l I u l f I l u I zeef INVENTOR CHARLES NUHRMM@ ATTORNEYS enemies inn. 11, 192e. Latte,

CHAR-LES NUHRING, O3" CJINCINNAT, (JI-X10.

PUMP FIRE EXTINGUISHER.

Application filed October 18, 1921.. Serial No. 508,488.

To @ZZ whom ri may conce/i171: trated in the accompanying fflrawings. andV 1Beit known tlat 1. CnanLns NUriRiNG, a tinally pointed out in the appended claims. citizen of the United States, residing at Cin- As disclosed herein, the invention .is decinnati, in the countyv ot Hamilton and Statey lineated in one otl its practical termsA` but 5pt Ohio, have invented certain neiv and usethis disclosure is to be, taken onlyT in an 6U "ful improvements in Pump Fire Extin- Villustiative rather than a restrictive sense.

guishers, of Which the following is a speciii- 1n the drawings-- cation. Fig. 1 is a vertical transverse set-,tional The present invention relates to iinprovevievv oi' a tire-extinguisher constructed 'in ac- Vments in chemical tii lxtingnishei's ot the cordance with the present, invention; 65

"z e if* e. .0'. a is a o'i i an view `iereoi': poitabl tp llia 0 t l 1l tl The Object. ot' the invention is to improve is an inverted plan vievv ot the et:- the construction o't portable extinguishers to ting'uisher; render them more ett'ective in operation by Fig. et is a fragmentary transverse seemincluding therein a pumping` device tor the tional vien' ot the base ot' the tank taken at 70 ""discharge otl the chen'iical extinguishing; right angles to the line ot section ot 1:

agent. The inclusion otl such pumping' ele- YFig. 5 is a detail sectional view on the line nient enables expulsion of the agent under ot' Fig'. 1 certain parts being' oinltted. positive impulses ot the pump, as distin- Reterring in detail to the accompanying' 2Qpguished troni the pressure created by a gas dra-Wings.l the in'iii'ieral 10 designates the 75 ""igeiierated bv the eoinn'iingling et' an acid tank ot the hereindescribed extinguisher. and an alkaline solution, therebyv assuring' This is formed pifet'erabl3v ot'copper, as is at all times the proper discharge ot the eX- usual with chemical iire-extingriiishers. The tinguishing agent when required tor use and top of the tank is exteriorlv screw threadwniaintaining' uniform pressure on the agenty ed, and engaging' said threaded end is a 80 throughout the entire operation ot emptying cap 11 having` a depending' flange which is the tank. This obviouslv is advantageous inteariorlY screw threadef' tor cooperation over the pressure esta gas vvhieh gradually with the Vthreads ot the tank. The cap 11 diminishes, and insures to the. user adequate also preferably is provided with a ring; 152 discharge ot' the extinguishing agent to the which constitutes a handle 'for the Couven- 85 limit of the contents thereot 'within the tank. ient ii'ianipulation ot the extinguisher.

A further Object of the invention is to At the central portion ot the capl 11 is provide a pump lire-extinguisher ot' the torined an opening` about which, at the ingeneral Class referred to wherein is embodied ner side ot the cap. is a dependintel annular convenient and'siinple means Jfor preventing tlange 123. said :fiance beine' integral with 90 the pump beeoinine' air-bound in its operathe nip, and arranged Within said tiange 13. tion ot discharging the tank, and ikevise and suspended troni the cap 11, is the elont'or precluding deterio ation o't the chemical gated barrel 14. ot pump. which barrel has extinguishing agent Within the tank either its lower 'end screiv threaded and to which 40 h v evaporation or b v absorption of i'noisture is connected the nip-ple 15 ot a valve cage 95 troni the atmosphere. The strength o't the screen 15. The upper end ot the nipple 15 agent, therefore, is preserved. l constitutes a alve seat. and cooperating;

Furthermore, the invention also contenti 'l `reivithV is a vertieallv movable valve 17 plates such an organization and correlation which rests upon said seat and controls ot the parts ot' the extinguisher as to render communication between the loiver end ot the 100 the latter compact, easilyv accessible tor oplwrrel 1li and the interior ot the tank 10. eration when such is required.4 and readilv T he valve 1T has a stem 1S extending' doivnreplaced in eventot' impairment ot the erivardlv there. 'n a n .1, to which is connected nushe Y a head 19 bj.' 'ch the upviard inoveinent il-.lith these general objects in view, and of vthe valve 1T is limited. 10") others ivhich Will appear as the nature of pistonY rod is also arrangei'l 'Within the improvements is better understood, the the barrel the upper end of said rod ei;- invention consists snbstan'tiallv in the novel tending through the central opening' of the construction, combination and arrangement cap 11 and projecting;- above said cap, and x ot parts hereinafter fully described, illusarranged at 'the loiver end ot said rod 20 is u( a valve cage 21 having` a series of lateral ports 22, a ball valve Q3 beingjr located Within said cage 21. The valve QS controls the passage '224. which extends through a piston 2a connected at the lower end ot the cage Thus it vvill be seen that the valve 1T will be drawn upwardly on the upstroke ot the piston rod 20, While the valve 2? seats on such upstroke, the downstroke ot the rod 2l) causing the valve .1T to seat, While the vaive becomes unseated and establishes cormnumcation between the passage ot the piston 25 and the space within the barrel 1% above said piston.

The head of the barrel 14 is tapped by a discharge pipe 26, the inner end of which pipe is detacluiblj,v connected to the head of the barrel 14, as by a suitable screw threaded connection7 said pipe 2G extending through a packing lland 2T formed in the Wall o1 the tank 1f). and thereby providing' a properly fitted joint between the discharge pipe 26 and the tank 10. hose Q6 is connected to the outer end ot the discharge pipe Q6 tor directing' the extinguishing' agent as it is discharged from the tank.

:it a suitable point in the rap 11 is jformed a filling' opening in which is fitted a closure plug1 Q87 and at opposite points With respect to the central opening; oit said cap is also provided a pair ot' vent openings 29. The purpose ot these openings is to admit air to the tank 10 under proper conditions of use, and thereby to prevent the. pump Within the tank becoming air bound. At the eX- terior ot the piston rod 20, and disposed above the cap 11, is a head 30 havingr oppositely disposed handles 3l at its upper portion. while at its lower portion is vformed a pair ot oppositely disposed locking' arms 32. These arms, when positioned over the vents 29. serve to close said vents and prevent admission ot air to the interior of the tank 10. This precludes deterioration ot' the chemical extinguisher Wit-hin the tank either by absorption of moisture from the atmosphere or by evaporation. The locking` arms cooperate 'with a pair of oppositely-disposed reversely-arranged lockingv luf-js 3 each of which lockinglugs 33 has an overhanging flange under Which the outer extremity of one of the locking; arms 32 is adapted to tit. The under surface of the .flanges ot' the lugs is Wedge shaped, and by reason ot' the reverse arrangement of said lugs with respect to each otherit Will be apparent that as the locking arms 32 pass beneath said tiene-es the wedge shape oit the latter will force the locking` arms into tight engagement With the can-11, and thus eftectually close the vents 2S). This Wedgine' action has the 'further function of forcing; the piston Q5 into entrainement with the upper end ot the valve 121 vvl 'eh action serves to lock said valve upon its Seat7 and thereby prevent displacement ot said valve 1T from the latter.

To anchor the extinguisher during the operation otl the pump one side of the base thereoi is provided With an opening 34, and extending' across the lower end of thebase, in proximity to said opening Zf-l, is a Web 21,5 which constitutes a rest for the toot of the operator Which is introduced to the opening 53e. This construction enables the application of the tootto the web 35 in order to hold the extinguisher in position during the pumping; operation.

ln the operation ot the herein described extinguisher the same is filled by the removal ot the closure plug' 1C., at which time the desired chemical extinc'uishing agent may be introduced to the interior of the tank 1U. With the plugl 28 titted to its opening in the cap 11 and the piston rod 20 moved to the limit ot its inward motion, the piston will contact with the valve 17. Rotation nov: exiertefl upon the piston rod 20 will drawthe lockinpl arms 32 into engagement with the tlaneied locking lugs. which mar-vement positions said locking arms over the vents QSL sealing` the interior of the tank l() trom -communication with the 'atmosnher-L. during which rotation ofthe rod 20 the piston will also bind the valve 17 to its seat. lVhen the extinguisher is required tor use. it is but necessary to rotate the piston rod Q0 to release the lockingarms 32 troni engagement with the lugs and in this movement the valve 17 is rotated upon its seat so that in the event of corrosion. which may possibly arise by reason ot' the lhemical extiim'uishina agent Within the tank 10. the valve 17 will be Jfreed and rendered capable ot proper movement in the action oi the pump. ll?eciprocat-ory move- .ment now being' imparted to the rod 20 the e\tingruisliinaagent will be drawn :trom the tank 1() into the pumpbarrel 14 and discharged therefrom through the pipe 26 and the hose 526 to the point of service, The pumping action continues until the tank 10 has be'ome depleted ot' the extinguishing agent. whereupon said tank may be illed airain. in the manner indicated, and is thus. charged for further use. Y

ln the event the separation of the parts is required, it .is simply necessary to free the locking` arms 32 from engagement with the lu'rs detach the head P30 from the rod 20.7and disconnect the. discharge pipe QG 'from the head ot the pump barrel 14. The parts then may be Whollv removed from the tank 10 and readily separated.

l. claim:

1. .ln a tire-extinguisher of the class described. the combination with a tank, of a cap theretor pr vided with a pluralitv of vent Vopenings lcadi e into the top of the tank a pumping attachment associated with said cap and arranged Within said tank, means associated with said pumping attachment for closing said vent openings, locking means cooperating with said closing means to hold the latter in closed relation to said rent openings, and a. discharge pipe connected to said pumping attachment.

2. In a tire-extinguisher of the class described, the combination With a tank, of a cap therefor provided with a plurality of vent openings, a pumping attachment associated With said cap and arranged Within said tank, means associated with said pumping attachment for closing said openings, locking means for holding said closing means in closed relation to said vent openings, a valve included in said pumping attachment for controlling communication between the lat-ter and the interior of said tank, and means for locking said valve upon its seat simultaneousl;7 with the locking of the closing means for controlling said rent opei'iings.

3. In a tire-extinguisher of the class described, the combination With a tank. of a cap therefor having a: vent therein leading into the top of the tank, a pun'iping attachment associated with said cap, means for actuating said pumping attachment, means associated with said actuating means for closing said vent, means for locking said closing means in position over said vent, and a. discharge pipe connected to said pumping attachment.

4. In a tire-extinguisher of the class described, the combination with a tank, of a cap therefor having a ventI therein, leading into the top of the tank, a pumping attachment suspended from said cap Within said tank, means at the exterior of said cap for actuating said pumping attachn'ient, means also arranged at the exterior of said cap and associated with said actuating means for closing said vent, means for locking said closing means in position over said vent, and a discharge pipe connected to said pumping attachment.

5. l'n a tire-extinguisher of the class described, the combination With a tank, of a cap therefor having a vent therein leading into the top of the tank, a pumping attachment associated with said cap, 'means for actuating said pumping attachment, means associated with said actuating means for closing said vent. a locking lug carried by said cap and with Which said closing means cooperate for locking the closing means in position over said vent, and a discharge pipe connected to said pumping attachment.

In a tire-extinguisher of the class described, the combination With a tank, of a cap therefor havingl a vent therein, leading into the top of the tank, a pump barrel suspended from said cap Within the tank, a valved piston mounted in said pump barrel,

a piston rod connected to said piston and extending through said cap,means associated With said piston rod for closing said vent, means for locking said closing means in position over said vent, and a discharge pipe connected to said pump barrel.

7. In a .tire-extinguisher of the class described, the combination with a tank, of a cap therefor having a vent therein, leading into the top of the tank, a pump barrel suspended from said cap Within said tank, a controlling valve arranged at the lower end of said pump barrel, a piston rod connected to said piston and projecting through said cap, means associated With said piston rod for closing said vent, means for locking said closing means 'in position over said vent` said piston rod when said closing means are locked in position to close the vent serving also to lock the controlling valve of the pump barrel in engagement with its scat, and a discharge pipe connected to said pump barrel.

8. ,in a` tire-extinguisher of the class descrita-al, the combination with a tank, of a cap therefor having a vent therein, a pmnping attachment associated with said cap, means for actuating said pumping attachment, a lockingarm associated with said pumping attachment for closing said Vent, a locking lug` carried by said cap for holding said locking arm in closed position over said vent, and a discharge pipe connected to said pumping attachment.

9. ln a tire-extinguisher of the class described, the combination With a tank, of a cap therefor having a pluinlitj7 of vents therein leading into the top of the tank, a pumping attachment associated With said cap and suspended thereb;v Within said tank, means for actuating With pumping attachment, locking arms associated With said actuating means for closing said vents, a pliralitiv of locking lugs carried b v said cap and with which said locking arms cooperate for holding the locking arms in closed position over said vents, and a discharge pipe connected to said pumping att a chine-nt.

l0. In a fire-extinguisher of the class described, the combination with a tank, of a cap therefor having a plurality of vente therein leading into the top of the tank, a. pump barrel depending from said cap, a valred piston arranged Within said pump barrel, a piston rod connected to said piston and passing through said cap. a valve seat arranged at the lower end of said barrel, a valve associated With said seat and controlling communication between the interior of the tank and the interior of said barrel, oppositelv disposed locking arms carried b v said piston rod at the exterior of said cap and serving to close said vents, and a plurality of oppositely disposed overhanging locking lugs carried by said oep and with which said locking' arms nre adapted to engage to held the looking urine in closed position over seid vente, the engaging faces of the locking arms und the locking lugs being beveled to exert u Wedging notion 'when seid arms ure brought into engagement with said luge, wherebf.- to maintain the locking arms over the vents of the cap und also to engage said piston with the valve controlling communication between the tank and the pump burrel and thereby lock Said valve upon its Seat concurrently with the locking?r of seid arms over said Vents.

11. In e. [ire-extinguisher of the class described, the combination with a tank, of d Aeztp therefor hztving` e pluielityv of vente therein lending into the top of the tank', e pump barrel dependingl from seid Cep und provided ut its lower end with e vulve See-t` :t valve tio-operating with Said seat to control comnnlnication between the interior ot' the tank and the pump barrel. e rulved piston mounted for movement within seid herrel, a piston rod connected to Suid piston and extendingT through said eup` :l handle deteeluxbly connected to seid piston rod end provided with oppositely disposed looking :irme adapted to tvo-operate with the vents o the mp to close said vente, oppo'sitely disposed clamping' lugs also Carried by the Cep und with 'which Seid Ilocking urine-copper :ma the engaging trices oi' seid locking urine and Suid locking' lugs being beveled to exert wedg'ing action when Seid lockingr firms are 4brought into engugenient with seid lugs` Wherelnj to clump the locking arms into engagement With Suid Cep and sin'iultaneouely exert pressure upon the vulve oli the pump barrel to hold the letter to its seat and. ore-- vent communieetion between the tank und i f CHARLES NUHRING.

lVitnesses:

ADAM Lo'rz. P). D. XVESTENFELDER.

Certificate or Correction.,

It is hereby certified that in Letters Patent No. 1,486,600, granted March 11, 199A, upon the application of Charles Nuhing7 of Cincinnati, Ohio, for an iinprovenient in Pump Fire Extinguishers, an error appears in the printed specii'cation requiring, Correction as 4follows: Page 3, line 91, claim 8, after the Word therein insert the phrase and comma leading into the op of the tfmu' and that the said Letters Patent should be read with this Correction therein that the sanie inay conform to the record of the Case in the Patent Office.

Signed and sealed this 6th da@7 of May, A. l). 1924.

[SEAL] KARL FENNING,

Acting Uowmm'ssz'oner of Patents.

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