US1189566A - Strainer. - Google Patents

Description

E. E. HAUER.

STRAINER.

APPLICATION FILED MAY 15. me.

1 1 89,566 Patented July 4, 1916.

2 SHEETS-SHEET I.

E. E. HAUER.

STRAINEH.

APPLICATION men MAY 15, 1916.

l ,1 89,566. Patented July 4,1916.

2 SHEETS-SHEET 2.

- forth in the claims.

TED STATES Parana onrioni."

YELMER E. BAUER, OF SPRINGFIELD, OHIO, ASSIGNOR TO ELLIOTT COMPANY, OF PITTS- BURGH, PENNSYLVANIA, A CORPORATION OF PENN $YLVANIA.

STRAINER.

To all whom it may concern:

Be it known that I, Emma E. HAUER, a citizen of the United States. residing at Springfield, in the county of Clark and State of Ohio, have invented certain new and useful Improvements in Strainers, of which the following is a specification, reference being had therein to the accompanying drawings. I

My invention relates to strainers and .more particularly to strainers of the multiple type in which one of the strainer elements can, be removed for cleaning or re pairs While the other is in operative position although the improvements may be used in strainers having a single strainer element,

The object of my invention is to provide an improved strainer in which the strainer element remains stationary while vthe valve is moved to cut it ofi from the flow of the fluid to bestrained.

A furtherobject is to provide improved means operated by fluid pressure to open and close the valves.

.With these and other objects in view my invention consists of the constructions and combinations hereinafter described and set In the accompanying drawings which form a part of this specification Figure 1 is a longitudinal section of a strainer embodying my invention, said section being taken on theline 1-1 of Fig. 1; Fig. 2 is a cross-section, on the line 22 of Fig. 1; Fig. 3 is an enlarged section on the line 33 of Fig. 1; Fig. 1 is a plan view and Fig. 5 is a longitudinal section on the line 5-5 of Fig. 4:. a

In the drawings 1 represents a casing having a vertical. partltion 2 forming an inlet passage 3 and a horizontal partition 4:

having openings 5 into a stralnmg chamber 7 6. An extension 7 of the casing forms piston chambers 8 opposite the openings 5in thepartition land each of said piston chamhers is provided with a head or cover 9 secured thereto by bolts 10. p I

Strainer elements which are shown in the form of perforated cylinders 11 are provided for each of the openings 5 and extend therein as shown. Each of said strainer the piston chambers. 1

Specification of Letters Patent.

7 element. movement'through the opening 5 carries Patented July 1, 1916.

Application filed May 15, 1916. Serial No. 97,725. i

The cylinders 11 are provided with bottoms 14; having central cylindrical recesses 15 wlth oppositely disposed inwardly ex tending flanges 16 and the supports 12 have flanges 16 and hold the cylinder in place.

The strainer elements can be removed from the casing through openings 19, said openings being provided with covers 20 hinged at 21 and secured in place by. bolts 22. The casing has an inlet 23 and an outlet 21 withflanges adapted to be connected Wllll'l a pipeline.

Piston valves each comprising a cylinder '25 and a disk 26 provided with a stuifing:

box 27 and packing rings. 28 are movable from the piston chambers into the strainmg chamber to seats 29 secured within the upperportion of the casing as shown.

. To provide against excessive leakage through the space between the cylinders 11 and the walls of, the openings 5 when the piston valve is below the partition 1 a ring 30 is normally seated in said opening reducing the space or opening so that it will not pass foreign matter to any greater extent than the perforations in the strainer The piston valve in its closing the ring 30 with it and in its opening movement returns it.

chamber through passages 37 which are supplied from the cooks 35 through pipes 38.

Said cocks. have an exhaust pipe 39 secured thereto as shown.

When one of the piston valves is in its lowest position as shown at the left of Fig. 5 and it is desired to raise and close the same the cock for operating said valve is turned to the positionshown by the lower 'cockiin Fig. 2 which admits the motive agent to the piston chamber and exhausts from the piston valve chamber through the passages and pipes heretofore described to the exhaust pipe. This movement causes the piston valve to move upward until it closes against its seat so that the strainer element can be removed for cleaning or repairs while the other strainer element is in operative position.

When one of the valves is in its upper position as shown at the right of Fig. 5 and it is desired to lower'the same into open position the cock for operating said valve is turned to the position shown by the upper cock in Fig. 2 which admits the m0- tive agentto the piston valve chamber and exhausts from the piston chamber through the passages and pipes heretofore described to the exhaust pipe.

When desired an auxiliary device for holding the piston valve in its upper or closed position independently of the pressure of the motive agent may be employed and for this purpose I have shown an opening 40 in the casing having screw-threads 4:1 and a stufling-box 42 and a spindle 43 having a screw-threaded portion to engage the screw-threads of the opening and by turning the spindle with the handle ii its inner end will engage and hold the piston valve to its seat. V

Various modifications may be made in the form and arrangement of the parts without departing from the principle of my invention.

Having thus described my invention I claim:

v 1. The combination of a casing having an inlet and outlet, a strainer element and a piston valve adapted to inclose and cut ofl said strainer element from the flow of the fluid to be strained and means to admit and discharge a motive agent to operate said piston valve, substantially as described.

2. The combination of a casinghaving an inlet and outlet, a straining chamber and a -piston chamber, a strainer element in said straining chamber and a piston valve in said piston chamber movable into said straining chamber and adapted to cut ofl' said strainer element from the flow of the straining chamber and a piston valve in said piston chamber movable into said straining chamberand adapted to cutoff said strainer element from the flow of the fluid to be strained, means to admit and discharge a motive agent for the operation of said piston valve and a control forsaid means out- 'the operation of said side of said casing, substantially as described.

L. The combination of acasing-havingan inlet and outlet, a straining. chamber and a piston chamber, a strainer element in said straining chamber and a piston valve in said piston chamber movable into said 5. The combination of a casing having an inlet and outlet, a straining chamber and a piston chamber, a strainer element in said strammg chamberand a p ston valve in said piston chamber movable into said straining chamber and adapted to cut off said strainer element from the flow of the fluid to be strained, means to admit and discharge a. 'motive agent for the operation of said pisprising a disk and cylinder in said piston chamber movable into said straining chamber and adapted to cut off said strainer element from the flow of the fluid, a stationary piston secured to the casing and forming with said piston valve a chamber therein I and means to admit and discharge a motive agent to and from said piston chamber and to and from said piston valve chamber for piston valve, substantially as described. 1

- 7. The combination of acasing having an inlet and outlet, a straining chamber and a piston chamber, a stramer'element lIiStld straining chamber and a plston valve comprising a disk and cylinder in said piston; I

chamber movable into said straining cham ber and adapted to cut oif said strainer element fromthe flow of the fluid, a support for said strainer element to which it is removably secured, said support also acting.-

as a stationary piston within said piston valve forming with saidvalve a chamber therein and means to admit and discharge a motive agent to and from said piston cham ber and to and from said piston valve cham-. piston valve,

ber for the operation of said substantially as described. f

8. The combination of a casing having an inlet and outlet and apartition with an opening for the fiovw of-the fluid to be strained, a strainer element secured in afixed posltion and extending 1nto said opening, a ring seated 1n sald opening outside of said strainer element and a valve movable itsseat, a valve movable through said opening and adapted to carry said ring and cut off independently of said ring said strainer element from the flow of the fluid, said casing having an opening for the removal of the strainer element when said valve is in closed position and a closure for said opening, substantially as described.

In testimony whereof Iv have hereunto aflixed my signature in the presence of two 25 witnesses.

ELMER E. HAUER. Witnesses O. H. HAUsE, V. H. BAKER.

001ml of this patent may be obtained for five cents each, by addressing the Commissioner 01. Patent'-. Wanhington, D. 0.

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