US628023A

US628023A - Waste-valve for hydrants.

Info

Publication number: US628023A
Authority: US
Inventors: Horace Falk Neumeyer
Original assignee: Individual
Current assignee: Individual
Priority date: 1898-12-29
Filing date: 1898-12-29
Publication date: 1899-07-04
Anticipated expiration: 1916-07-04

Description

No. 628,023.A Patented my 4, |899. H. F. NEUMEYER.

WASTE VALVE FORHYDRANTS.

(Applimion med Dec. 29, 189s.,

{No Model.)

' UNITED STATES PATENT OFFICE.

HORACE FALK NEUMEYER, OF MACUNGIE, PENNSYLVANIA.

WASTE-VALVE FOR HYDRANTS.

SPECIFICATION forming part of Letters Patent No. 628,023, dated July 4, 1899.

I Application filed December 29, 1898. Serial. No. 700,639. (No model.)

YT all w/tmit t may concern:

Be it known that I, HORACE FALK NEU- MEYER, a citizen of the United States, resid-v ing at Macungie, in the county of Lehigh and State of Pennsylvania, have invented a new and useful Waste -Valve for Hyd rants, of which the following is a specication.

My invention relates to improvements in waste-valves for hydrants and like structures; and the primary object of the invention is to provide an improved construction in which the delivery-pipe is drained automatically of the water standing above the plunger-valve, thereby overcoming any tendency of the water freezing in the pipe during cold weather and preventing any escape of water while tapping the pipe or main.

A further object is to provide an improved construction in which a duid-operated pistonvalve tends to closethe drain-port before water is permitted to pass through the hollow plunger-valve to the delivery-pipe, and said piston-valve is operated solely and automatically by the pressure of the duid in the hydrant. a

A further object is to construct the hollow or chambered plunger-valve with guides that serve to direct the piston-valve and form the waterways for the passage of water and for the water to press the piston-valve closely against the plunger-valve for securely closing the drain-port therein. K

iVith these ends in view the invention consists in the novel combination of elements and in the construction and arrangement of parts, which will be hereinafter Afully described and claimed.

To enable others to understand the invention, I have illustrated the preferred embodi-V ment thereof in the accompanying drawings, forming apart of this specification, and in which- 1 Figure 1 is a vertical section of my improved waste-valve for hydrants, showing the chambered plunger-valve seated in the footcasing and with the piston-valve lowered to the seat in the chambered'plunger-valve for opening the drain-port therein. Fig. 2 is a view similar to Fig. 1 with the plunger-valve raised to its open position and showing the piston-valve elevated to close the drain-port in said plunger-valve. Fig. 3 is a vertical sec-4 'of Fig. 3.

valve on a plane at right angles'to Figs. 1 and 2 and indicated by the dotted line 3 3 of Fig. 2. Fig. 4 is a cross-sectional viewon the line 4 t Fig. 5 is a detail perspective view of the piston-valve.

Like numerals of reference denote like and corresponding parts in each of the several iigures of the drawings.

The casing 10 at the foot of the hydrant is provided with an elbow 11, to which the Water-supply pipe 12 is connected by means of the coupling 13, andwithin this casing 10 is the chamber 14 and the valve-seat 15. The outside or main pipe 16 of the hydrant has a threaded connection 17 with the valve-casing 10, and within the chamber 14 of the casing operates the plunger-valve 18, to which is connected the discharge-pipe 19 of the hydrant. This discharge-pipe 19 has a threaded lower extremity 20, which is screwed into the internally-threaded coupling-neck 21 of the plunger-valve 13, and, as is usual in the art, the discharge-pipe 19 is connected with a suitable operating device of the hydrant for the purpose of raising or lowering theplungervalve 18 away from or toward its seat-15 in the foot-casing 10. As the means for operating the hydrant are ordinary in the art and constitute no part of the present invention, I have not considered it necessary to illustrate or describe the same. The plunger-valve 13 is chambered or hollow, and its upper end is partially closed by the coupling-neck 21, while its lower open end has a female thread. In this lower open end of the chambered plunger-valve is screwed the upper threaded part 0f a plug 22, which is provided, at a point intermediate of its length, with a circumferential collar 23. leather or any other suitable material, is slipped over the plug 22 to impinge or bear against the lower edge of the plunger-valve 1S, and this packing is clamped firmly in place between the collar 23 of the plug 22 and the lower edge of the plunger-valve 18 when the threaded plug is screwed home into the chambered plunger-valve. The plug 23 is bored to provide the longitudinal waterpassage 25,

and said plug is furthermore provided with a.

transverse waterway 26, which opens, into`or communicates with the longitudinal passage A cup-shaped vpacking 24, of

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25. The lower partfof the plug 22, `which is formedwith the transverse waterway 2o', protrudes below the plunger-valve 18, and to the lower extremity of this valve-plug 22 is tted a gasket 27, that is held firmly in place by the screw 28, which is attached to the plug 22.

The hollow1 plunger-valve 18 has the pistonvalve chamber 2a, and the lower part of this chamber is formed, as hereinafter more :fully described, with aseries of guide ribs or anges 30 31 32, three in number and arranged to direct the slidable movement of the piston-valve and to form a blind passage and waterways for the escape or passage of the duid through the chambered plunger-Valve. In the embodiment of the invention represented by the drawings l have shown the piston-valvechamber 29 of the plunger-valve 18 as provided with a series of three longitudinal guide ribs or flanges, (indica-ted at 30, 31, and 32,) which are parallel to each other, and the space between the upper ends of the guideribs 31 32 is closed by an arc-shaped transverse partition 33, which joins with said ribs 3l 32 for the purpose of forming a blind passage 3-1, as shown more clearly by Figs. 3 and 4, to which water is admitted when the pist0n-valve is raised for the `purpose of exertinglateral pressure on the piston-valve and forcing the latter closely against the wall of the plunger-valve 18, in which the drain-port is provided. It will be understood that the blind passage 34 is formed between the ribs 31 32, and that the upper end of this blind passage is closed by the transverse partition 33. The space between the

ribs

30 and 31 forms a waterway 35, and similarly the space between the

ribs

32 and 30 forms another waterway 35, thus providing two waterways on `opposite sides of the blind passage 34. (See Figs. 3 and 4.) The upper part of the piston-valve chamber 29,above the upper ends of the ribs 30 to 32, inclusive, is enlarged, as at 36, and with this enlarged part of the chamber 29 communicates the waterways 35, thereby providing for the free upward fiow or passage of the water through the chamber 29 when the plunger-valve 18 is raised from its seat and the piston-valve from its seat on the upper end of the bored plug 22. The plunger-Valve 18 is furthermore provided with a drain-port 37, which is formed in the valve 18 at a point diametrically opposite to the blind `passage 31 and in a position to communcate with one of the guide-ribs 31, and this drain-port is formed in the plunger-valve 18 at a point above the upper extremity of the seat formed by the threaded plug 22, the distance of said port 37 from the plug 22 exceeding the length of the piston-valve 38. This piston-valve is made of a solid piece of metal which is turned to accurately fit the space inclosed or bounded by the ribs 30 3l 32, and the length of the piston-valve is less than the distance between the threaded plug 22 and the drain-port 37, thus opening `or exposing the drain-port 37 when the piston-valve is lowered to rest upon the upper extremity ot'isaid plug 22. The piston-valve is free to slideor travel in a verticaldirection within the guides formed by the ribs in the chamber 29 of the plungervalve, and the piston-Valve is lifted solely by the pressure of water admittedlby the bored plug 22 to the chamber of the plunger-valve, while the valve 38 is adapted to seat itself by gravity when the flow of water through the hydrant is cut 0E. This piston-Valve is provided atits upper end with a central projecting nib 40, and it is furthermore,provided with a vertical vent-passage 41, that extends entirely through said piston-valve and opens through the opposite ends thereof. The upward Inovement of the piston-valve under the pressure of the rising column of water admitted to the chamber of the plunger-valve `18 is arrested by means of a stop-bar 42, which is arranged in the enlarged upper part 36 of the chamber 29 to lie directly in the path ofthe central `nib on the piston-valve. The Valve `itself does not contact with the stop-bar; but itscentral nib is arranged to engage with the stop-bar, thus providing a limited area of contact for the valve against the bar and enabling the water to flow freely around the piston-valve and thence to the plunger-valve into the discharge-pipe 19.

Although I have shown and described the chamber of the lplunger-valve as provided with a series of three ribs to form a blind passage aud two waterways, I do not strictly confine myself to this specific construction of the ribs for the formation of the blind passage and the two waterways, asI am aware that the piston-valve may be pressed closely against the side of the plunger-valve having the drainport in order to securely close the latter by the pressure of water against the piston-Valve by modifying the internal construction of the chambered plunger-valve.

The operation may be described as follows: Assuming that the plunger-valve is lowered for the washer 27 to occupy the seat 15 in the casing 10, the flow of water through the hydrant is out off and the piston-valve seats itself by gravity on the upper end of the plug 22, thereby opening the drain-port 37 and permitting the water above the plunger-Valve and the piston-valve to trickle or drain through the port 37 into the outside main pipe 16 of the hydrant. Then the operating device of the hydrant is actuated to raise the plungervalve 18 from its seat 15 in the casing 10, water is permitted to fiow under pressure `from the pipe 12 through the casing 10 into the port or waterway 26 and the passage 25 `of the bored plug 22. The pressure of the water against the lower' end of the piston-Valve 38 lifts the valve and i-mpels it endwise in the chamber 29, the piston-valve being guided by the ribs or iianges within said chamber 29. At the initial upward movement of the piston-valve under the pressure of the waterthe lower end ofthe blind passage 34: is exposed and the piston-Valve traverses the drain-port IOI) IIO

37 before the waterways 35 in the chambered plunger-valve are opened, whereby the waterpressure in the blind passage acts against the piston-valve to force it laterally into close frictional contact with the Wall of the plungervalve in Whichthe drain-port 37 is formed, thereby closing the drain-port againstthe leakage of water. The continued upward movement of the pistou-valve under the pressure of the water which accumulates in the charnber 29 of the plunger-valve opens or exposes the Waterways 35 to permit the Water to flow around the piston-valve through the waterways 35into the enlarged part36 of the chamber and thence to the discharge-pipe, and if the pressure of water is vsufficient to still further elevate the piston-valve its nib 40 impinges against the stop-bar 42 to positively arrest the upward movement of the piston'- valve under pressure of the water. During lthe vertical `travel ofthe piston-valve it is kept closely pressed against the side of the plunger-valve having the drain-port by the pressure of the water confined within the blind passage,' and thus the drain-port is closed securely by the piston-valve while the plunger-valve is open and the water is'fiowing through the hydrant. When the water is cut olf and the plunger-valve is lowered to its seat the piston-valve is permitted to descend by gravity and to restupon the threaded plug 22, and the descent of the piston-valve uncovers the drain-port 37 for the water in the pipe 19 to discharge through the drainport 37, thus overcoming any tendency of the water to freeze in the hydrant-and preventing any escape of water whiletapping the main.

The outside pipe 16 of the hydrant is provided with a drain or waste port 16 at or near the lower end for the water to make its escape when drained from the hydrant.

Changes may be made in the form and proportion of some of the parts, while their es sential features are retained and the spirit of the invention embodied. Hence I do not desire to be-limited to the precise form of all the parts as shown, reserving the rightto vary therefrom.

Having thus described the invention, what I claim isl. In a waste-valve, the combination of a chambered casing provided with waterways and with a drain-port which communicates with a piston-valve chamber within said casing and a piston-valve movable freely in said chambered casing and seated normally therein by gravity to expose the drain-port, said piston-valve being moved in an-upward direction solely by the pressure of water admitted to the casing and held into close frictional contact with that side of the casing having the drain-port by pressure of the Water in one of the ways, substantially as described.

2. In a waste-valve, a lchambered casing provided with guide-ribs arranged to form waterways and with a drain-port which communicates with a piston-valve chamber in said casing, combined with a pressure-operated piston-valve slidably confined by the guide-ribs within the casing and exposed to the pressure of water in one of the ways, to be dei'iected laterally by water-pressure into close frictional contact with the wall of the chambered casing having the drain-port, substantially as described.

3. In a waste-valve, the combination' of a chambered shell provided with waterways and with a drain-port, and a pressure-operated elongated piston-valve fitted slidably within the shell and arranged to close the drain-port during its upward travel, substantially as described.

4. In awaste-valve, the combination of a chambered shell provided with internal guideribs arranged to form waterways and with a drain-port which opens through one of the guide-ribs, an elongated piston-valve slidably confined within the guide-ribs of the shell and arranged to close the drain-port when lifted by the pressure of fluid,and means for limiting the upward movement of said piston-valve, substantially as described.

5. In a waste-valve, the combination of a chambered shell provided in one wall thereof with a blindpassage and in its opposite wall with'a drain-port, combined with an elongated piston-valve slidably conned within the shell to close the drain-port duringits endwise movement, substantially as described.

6. In a waste-valve, the combination of a chambered plunger valve provided with guide-ribs forming waterways and with a drain-port, a perforated plug fast with the lower end of the chambered plunger-valve, a

pressure-operated piston-valve slidably confined in the chamber of the plunger-valve, and a stop in the path of the piston-valve, substantially as described.

7 In a waste-valve, a chambered shell provided with internal guideways, a drain-port opening through one of said guideways, and

a s-top-bar above the guideways, in combina-V tion with an elongated solid piston-valve provided with a central nib and with a longitudinal drain-passage, substantially as described.

In testimony that I claim the foregoing as my own I have hereto aHiXed my signature in the presence of two witnesses.

HORACE FALK NEUMEYER.

Witnesses:

A. S. WEILER, M. S. WEIDNER.

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