US1709472A - Strainer - Google Patents

Description

April 16, 1929. F. L. HAMMER STRA'INER Filed May 19, 192'? 2 Sheets-Sheet l April 15, 1929- F. L. HAMMER LZQQAZ STRAINER Filed May 19, 1927 2 Shfsets -5het 2 YPatented Apr. 16, 1929.

UNITED STAT-EsY FORBESTERIL. HAMMER, or BRANFORD, CONNECTICUT; Y

. e STRAINER;

Application iled Hay 19,

This invention relates to an improvement in strainers, and lias'for its object 4the production of a'sim'ple and efficient device of the class described constructed with'particular reference to ease voi' assembly and disassembly. f Y

A Y With this object in view, my'invention con- 'e andfvalve-stem and sistsina Strainer having` certain details of construction and combination of parts as will ,be hereinafter described and kparticularly re cited inthe claims. Y

f In the, accompanying drawings:

Fig.v lv is ,a view in .iside-elevation of ya strainer lconstructed in accordance with my invention;

l Fig. 2is a top or plan View thereof; v Fig. 3 is a view in central vertical secti on on the line3-3 of Fig. lon an enlarged scale,"k

Fig. 4 is a transverse sectional View onthe line4-4ofFig.3; y 0/ Fig. 5 isa corresponding View .on t-heline 5-,5 of Fig.3; I i v yFig. 6 is'a detached view in side elevation of the strainer-unit.; l v Y. F 's an underside view thereof; Fig; 8 is a detached side view of the Valve Fig. 9 is an underside In carrymo Sh'owml lView thereof.,v

employ a cup-,shaped body-member 10 provided at its upper end with an outwardgages with a threaded bore 15 formed in a. boss 16 upstanding from the lower` end of the e body-member 10. Y

Within the body-member 10, near itslowcr end, I form an annular seat 17 for the recepf tion of a skeletonized assembly-plate 18 which is provided with an annular series. of fluidpassages 19 and with `an annular outer positioning-lange 20 and a corresponding inner positioning-deluge 21, both upstanding from its upper face. Soldered or otherwise secured,

at its lower end, to the outer flange 20 is gauzel cone 22, preferably made of metal, and inclined upwardand inward from 'the saidV flange 20. At its upper end the cone is soldared or otherwise secured tothe upper end out my invention. "as herein 192'?. serial Np. 192,592.

of a complementary inner` gauze Acone23 also respect to the cone 22 and soldered or yotherwise secured 'at its lower' e'ndV to the posi tioninglange 21 aforesaid, asclearly shown v formed lof metal and inclined reversely with i in Fig. 3.; yIn addition yto the passages 19 e f aforesaid,`the plate 18 is also provided with a central bore 24 in which is soldered an uplstanding,feed-tube'25, slidably fitting at its upper endinto a socket 26 formed in a boss 27 depending from the underface of thecapf,

member 13.

Opening into the socket 26,so as tobefin connection with the interior ofthe'tube25,

vthe cap-member 13 is provided with a vertical cylindrical passage 28 intersectingat its upper end a horizontal inlet-passage2'9, which latteris'enlarged at its outer end and internally threaded as at 30 forl the reception of a pipe or other suitablehcon'duit."

At-oneside of the central passage 28 aforesage 31 contracted -at its upper end as at 32 lfor the reception of a valve 33 formed .with

va conical portion 34',r which latter is formed f said the cap 13 isformed with a vertical pas-V y integral with a` valve-stem 35. Thevalve 33 aforesaidS cut away as at 36onan angle with' -respe'ctto its `a-Xis.so as toco-act with vthe passage `32 in .controlling the How 'of liquid be- .ktween thesame and al horizontal oiitletfpassage 37, which it intersects and which is located in the cap 13 at a point diametrically opposite theiinletpassage 29 aforesaid.

To raise and lowerthe valve 33 in the contracted portion 32 of the passage 31 for controlling the flow of fluid, the valve-stem 35 is` provided with an enlarged threaded portion 38,7the-threads of which cofact with an Y kinternally-threaded passage 39 arranged axiallyin line with the passage 31 and opening at its upper Vend into a vgland-chamber 40.

For the purpose of preventing the fluid from leaking upward past the valve-stein, I`

locate in the said gland-chamber and around the valve-stem 35a mass of brous packing 41 clamped between twoA complementary washers 42'bymeans of a helical spring y43 which n encircles the said stem and bears at its lower end against the upper washer 42 and Vat its upper end 'against the upper face of a plug 44j screwed into the extreme upper end ofthe gland-chamber 40. VAs shown, the kvalvefstem 35 extendsupward through the plug '44, and at its up erend it issquared as at 45 for the application of awrench or other suitable tool.

protect the upper end of the valv'eistem, l

from 'accidentally being turned, the same is covered by a domical cap 46 which isinternally threaded at its lower end for co-acton with the external threads or' a neck 47 upstanding from the cap-member 13 asshown.

The fluid. is adapted to enter my improved strainer through the inlet-passage 29,7thence travel downward through the passage 28, tube 25, and into the sediment-chamber .48 in the bottoni of the body-member' l0. From this point the fluid flows upward through the passages 19 of the assembly-plate 18 and Vout through the oppositely-inclinedWalls of the gauze cones 22 and 23, and upward through the passage 3l, past the valve 36, and ultimately out through the'intersecting, outletpassage 37.

As thus constructed and arranged, my improved strainer may be readilyV and `conveniently taken apart 'for cleaning by `first removing the coupling-holt lil, Which thereby permits the separation of the cap l'from the body-member 10. The strainer-unit, comprising the gaf-Lize cones 22 and 23, assembly-platef18,rand feed-tube Q5, may noiv be readily liftedlout. of the body-member and cleansed of any foreign matter adhering to it.

I claim:

l. A strainer comprisinga cup-like bodymember; a cap for the said body-member; an inlet and an out-let port formed in the said cap; averti'cal passage also formed in the saidcap in communication with one of the said ports; a separately-organized strainerunit comprising a perforated assembly-plate positioned above the bottom of the `said bodymember to forma. fluid-chamber at the bottom thereof, and a gauze element upstandingV fromthe ,said assembly-plate, a rverticallyarranged imperforate tube extending axially through the said gauze element between the vertical passage in the said cap and the said fluid-chamber in the body-member; and a coupling-bolt smaller in diameter than the internal diameter of the said tube, and eX- inlet and an outlet port formed in the said*l cap; a vertical passage also formed inthe said cap in communication with one of the said ports; a separately-organized strainer-unit comprising a perforated assembly-plate positioned above the bottom 'of the said bodymember to form. a fluid-chamber at the bottom thereof, and a gauze element upstanding from thesaid assembly-plate; a verticallyarranged imperforate tubeV secured to and upto-be unitary therewith and extending axially through ther said gauze element between the vertical passage inthe said cap and the said Huid-chamber in the body-member; and a coupling-bolt smaller' in diameter than the internal diameter of the said tube, and eX- tending axially through .the fluid-passage in the cap-member, through the interior of the said tube and into thebottom .of the said body-member for coupling the said cap-member and body-member together.

ln testimony whereof, have'signed this specification.

roaR-EsrERyL. HAMMER.

Vstanding from the said assembly-plate so as

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