US 1564819 A
Description (OCR text may contain errors)
Dec. 8,1925 1,564,819
W. T. BIRCH PUMP Filed May 12, 1924 Patented Dec. 8, 1925.
WILLIAM Trainee, onrcacog, LLINOIS.
- Application filed na la, 1924. 1 Serial No.'712',611.
ful Improvements in Pumps, of which the following is a specification.
The invention relates to improvements in pumps.
One object of the invention is to increase the efliciency and effective capacity of pumps without materially increasing their cost of production.
Another object is to provide means, in the pump chamber, which will. not materially impedethe velocity of the water passin thru the pump. 7 i
A more specific object is to arrange valves in a pump deck in such manner that the water stream proceeding from one valve is not materially resisted by the flow" from the next adjacent valve from which water is moving in an opposite direction.
Another object is to provide valves and valve arrangement that can be applied to and arranged in existing pumps with attendant advantages.
Other objects, advantages and benefits of the invention will become readily apparent, to persons skilled in the art, from a consideration of the following description when taken in conjunction with the drawings, wherein In the single view which is more or less diagrammatic but suflicient to clearly" show the application of the invention, 1-1 is a pump chamber divided by a wall 2 and a cylinder 3 connected therein by bolts 4. A piston or plunger 5 is reciprocatable in the cylinder by the piston rods 66 which pass thru stutling boxes 7-7 in end walls 8-8.
A pair of deck plates 9 and 10 are connected to the respective ends of the end walls 8 by bolts 11 which pass thru outturned flanges 12 on the end plates.
A cover 13 overlies the deck 9 and cover 14" underlies the deck 10, and between the cover 13 and respective deck is a valve chamber 15. A chamber 16 is located between the cover 14; and deck 10. j
An inlet opening 17 admits water into the chamber 16 below the valve late and a similar opening 18 permits disc arge of the water from the valve chamber 15.
y ng desc ibes! so a s 9 2 is pump stnuctures,
The new and improved featuresof the invention will now be pointed out.
There are two types of valve required for the invention used in the structure shown.
which is screwed into the deck Withits discharge port only very slightly above the upper surface of the deck. The other typeof .valve'21 is taller and has an'elongated cage or cylinder screwed into the deck and has its port,- or' discharge opening, in a horizontal plane above thesimilar ports of the valves 20. It is the discharge ports that are located in difierent horizontal planes.
\Vhen water is discharged from a valve j r- 564,819 PATENT QFFICE.
The valve 20 has a short cage or'cylinder of this .character, it passes in a radial direction fromthe central bore of the cage; If adjacent valves have their, discharge ports located in the same horizontal planes the water stream from one valve impinges upon or against the water stream of the adjacent valve, as the two streams are then moving I 1n opposite directlons the velocity of each stream will therefore be materially checked,
and since the water cannot for this reason flow so fast thru the valves the-capacity of the pump is decreased.
If the water does not meet obstructions until it has room to rise to, a vertical path in a natural upward curve the resistance or retardation produced by'the streams flowing from other valves is not so great.
By placing alternate valves in higher planes than intermediate valves more space is thus provided in horizontal'planes "for the flow of water from both classes of valves and in no instance does the stream of water from any valve flow directly against a stream proceeding from another valve.
When the water from the lower valves yflows against the cage-of the taller-valves Having described, my invention what I claim as new and desire to secure by Letters Patent, 'is: j
1. A. pump having a common valve deck, and a plurality of valves alternately discharging in the same direction at different levels above the valve deck,
ce is so apparent,
.2. In a pump, a plurality of valves arranged in the same plane and discharging in the same direction, alternate Valves discharging at difierent levels above the mountplane, a series of valve cages secured in the perforations with the ports thereof-in d ifferent planes and discharging in the same direction. H
In testimony whereof I hereunto set my hand.
WILLIAM T. BIRCH.