US890155A - Fire-extinguisher. - Google Patents

Description

No. 890,155. FATENTED JUNE: 9, m33' J. G. MASUN. FIRE EXUNGUISHBR.

APPLIUATION FILED FEB 5, 19084 yio JAMES G. MASTLN, or oHI'cAGo, ILLINoi's.

Specification of Letters' Patent.

y Finn-EXTINGUISBER.

i Patented Jene '9,' isos.

Application filed. February 5, 1908. Serial No. 4147,386. i

To all whom it may concern:

Be it known that I, JAMES G. MAsVTIN, citizen of theUnited States, residing at Chicagop in the county of Cook and State oflllinois, have invented certain new and useful Improvements in Fire-Extinguishers, of which the following is a s ecication. A

My invention re ates tocertainnew and useful improvements'in vlire extinguishers, and 4comprises certain constructions' 'and combinations whereby the device is rendered lhighly eflicient and effective for the* purpose for which. it is designed.

application is a modification of 'that shown and described'in mv apv lication iledDecember 23rd,.1907, serial no. 407,725.

ln the accompanying drawings wherein I show the preferred form of my invention the same part is designated by the same reference numeral wherever 1t occurs.

Figure 1 1s a perspectlve view of a lire extinguisher embodying my invention; Fig.,v

2 is a central lonvitudinal section; Fig. 3 vis a section taken on line 3, 3 of Fig. 3; Fi 4 is a sectional view showing a modified orm of outlet valve, and Fig. 5 is a detail view partly in section showing the manner of securing the I cam levers in thelr bearings.

l1 designates the container or casing inthe moved to fill the extinguisher all the operating parts of the device are lifted out of the casing or container, so that they are readily accessible for cleaning, inspectionl'or repair.

i The cap is provided on its up er surface. with oppositely disposed pairs o bosses 7 in which are formed the projecting earings 8 for the outwardly extending projections 9 of the cam levers 10; Preferably, and as shown, the bosses 7 have' lues l1 cast thereon on each side of the journal Zbearing, so that when the cam levers have been placed in osition these lu s 11 can be bent over the learings and ho d the 'cam levers journaled in position.'

These cam levers are providedwith the proyextending therethrough an to close the open' ing 1n the ring 2, so that when the cap is rethe cam surface 4 on the under ,side of ring 2, to removably lock the sapin position.

13 is a circumferential channel. eut in thecap 6 'in which is mounted 'a packing 'Washer 14 of tlting cam portions 12 adapted to engge rubber or other suitable material, the washer being held in ,position ythe projecting i ledge' 15- 'on vthe lower sideJ of thechannel. AS willV be. obvious from an inspection of the drawing, .when the cap is locked in psitlon by the cam levers 10,the` be'ad will .be forced into'thewasher 14, thus compressing the body of the washer 'and forming a tight The structure shownand described in thisjointbetween the cap andthe container.

16 is a pump barrel which is provided with section-of pipe which passes rough a stui'ling box 18 at the upper end ofthe'pump ybarrel, and the ipe is provided at its 'upper endfwith a han le 19 having the openings'20 communicating With the pipe 17. Thelower .end ofthe pipe afpiston rod 17, the vpiston rod.bein formed o a .isgscrew-threaded, and on this portion are mounted there two. pairs of clamps 21, 22. Between @these pairs of clamps are. mounted the piston packing 23, 24, the packing being shown as cup-sl1aped .and extending in opposite directions, that is to say the upper packing has/its free edge extending upwardly and lthe lower acking has its free edge extending and 24.1 provide' o enings 25 in the pipe 17,

whereby air may e supplied through the openings 20 to the space between the 'two iston packings. The lower end of the pump arrel 1s closed by ahead 26.

- downwar y. Between the two packings 23 27 is the exhaust tube whidh is referably connected to the side ofthe pump arrel and' which extends from the lower portion of the ump barrel up into the cap `6. At the' ower end of the-exhaust tube anopening 28 is provided, which connects the t/ube withI the lower portion of the pump barrel. The` cap 6 is' transversely bored at 29, the openingl extending into the upper end'of the exhaust pipe. The hole 29 at its outer end is enarged, whereby a shoulder 30 is formed, against which a valve 31 can seat,.the valve being held in position against the shoulder by a. bac o the 4valve and a plug 33` threaded into the outer end of the o en ing.

34 is an opening extendmg from the open- 'i ing 29 adjacent to the' shoulder 30throgh 32, which is confinedA between the the cap, so that it'will open intothe container. By construction will .be seen' that upon the down stroke of the pump piston air will be forced from the lower portion 'ofthe' pump barrel into the exhaust pi e 27,

and this pressure will force back the va ve 31 and permit the air to liow through the opennig 34 into the container.l The cap is also transversely bored at 35, `the openingA thus formed extending into the pump barrel near its upper end at 36. The outer end of theA opening 35 is enlarged to 'form a shoulder 37' against which seats acvalve 38 held in position by a spring'39 which is confined against the back of the'valve, and the plug 40 .threaded into the outer end ofthe opening 35. The capis also bored from its lower edge up int'o the opening 35 adjacent to the ivshoulder 37, whereby upon the upstr'okel of the pistonthe valve 38 will be forced back and air can flow from the upper portion of side of 'the nating at the upper side thereof.

thepump` barrel throughthe opening and` upon' thedoWn stroke 'air will liow around 3.0 f I rel. Consequently t e pump -will be double the cup 24 into the u per portion lof the bar` acting .and will force air into the container' both upon the up and the down stroke.

42 is an enlargement cast upon the upper ortion of the cap 6 at'one side.; rl`his engement is bored out transversely so as to form an openingl cap t rough the same, and termilnto the inner end of this o enin'g is screwed the pi e 43 which extends own to the bottom of the container, and in the form of construction shown *in Fig. lthe valve 44is screwed into theouter endA of the opening. On to Athe end of thevalve or cock 44 the hose 45 terminat-V ing in the nozzle 46 can'be readily attached.

' In the form ol construction shown inFig. 4

the Icock 47 is located' in the enlargement 42 and the hose 45 is"connected directly onto the outer end ofthe same. t

From the foregoing description it will be ai parent`tlt when the cap 6 is removed all ty e operating parts of the construction will l be removed, `so that both the container and the o eratingf arts `of the structure can be readi yl cleaner orrepaired., I 'From the above 'descrlption 1t 1s believed extending from the under' scones that the operation of my device will.' be

obvious. l

While I have described what I believe to 'td be the preferred 'form of my invention, I

desire to have it understood that many changes may be made in the form, .construc tion and arrangement of parts Without de# parting from the spirit thereof.'

I claim: v t l l. In a fire extinguisher, the combination with a casing, of a capfor closingthe casing,

l a pump comprising a barrell andv a'piston,

mounted upon the cap, ai pi e connected tol the barrel near its lower en /and extending upwardly v.into the cap, a valve mounted in the cap foncontrolling the upper end of the pipe, `and a delivery pipe mounted upon the cap andleading from the lower portionof the casing to the exterior.`

2. In a lire extinguisher, the combinationn With. a casing, o f 'apum mounted therein,

said pump comprising a arrel, a pipe form-4 4 ing a piston rod, la double'` piston mounted on the lower end of the rodcomprising "oppositely disposed cup sections, the pipe being provided with an opening in its lower end ex-j tending into the space between thecup sec-y tions, a connection leading from the bottom of the' pump barrel'into the upperportion of the casing and a second connection'leading fromlthe u per portion of the barfel into the casing an valves. controllingthe connections. 2

3." In a' fire extinguisher, the combination with a'casing, of a ca for kclosing Ithe`casing, a delivery pipe'exten ing from the lower porsol -tion'of the casing through the'cap, a pump barrel mounted in-the ca ,a pipe forming a" iston rod mounted int e 'pump barrel; a andle on the outer end of` the piston rod provided With openings extending therethrough and communicating with 'the' upper end of the piston rod, a piston onthe lowerv end of the piston'rod, the piston rod being provided with an opening ony oneside Wheref y air can pass into the pump barrel on one side of theA iston, said pump barrel'b'eing provided wit 1A an opening on the other side of the piston communicating Withthe interior ot the casing and avalve for controlling said opening. I 3

In testimony whereof lI aflix my signature in presence of two witnesses.l

- JfiMES Gr. MASTN. .VViimessessI w WALTER F. SANDERsoN, CRETIA SANnERsoN.

Images