US1170930A - Hydraulic-ram dredge. - Google Patents

Description

Patented Feb 8 eff me @a/af.

#eem i lcvRAM DREDGE. APPLLCATION FILED NO V. 4 19H.

` E. HYDRAUL w u, j

@We M right angles with the plane of the section` tain new and useful Improvements in EDWIN K. oisniiiiv, or ALEXANDRIA, vineImA HYDnAULic-RAM DREDGE.

To @ZZ whom t may concern.'

Be it known that I, EDWIN K. OVBRLEN, a citizenof theUnited States,residing at Alexandria, in the county of Alexandria and State of Virginia, have yinvented 1cprydraulic-Ram Dredges, of which the following isa specification. i v

This invention relates to hydraulic ram dredges, and it includes in combination a hydraulic ram 'and hydraulic excavating appliances, the parts having preferably special construction and arrangement with regard to each other, and the whole being intended particularly for use where a large amount of water is available which has only a small head or fall. Such conditions arise in con? nection with marsh lands situatedrnear tide water, where itv is practicable to provide, by the construction of dikes of appropriate position and extent, a receiving reservoir for the inflow of the tide water by which the rain and its dredging members are operated, and by which the stirred up silt or soil with the water carrying it may be sucked up and impelled through suitable lift pipes to the places of deposit desired. After a time during the relatively high period of the tide, the reservoir fills up,.and as the tide falls the water in the reservoir becomes higher than that on the outside, and the water then flows from the reservoir in a reversed direction through the ram.

It is an object of this invention, consequently, tol produce apparatus of the character and for the purpose set forth,'wherein the ram will be operated, and the dredging` and soil-lifting operations carried on, whichever direction is taken by the flowing water through the ram, as the head suiicient therefor is attained.

The construction of the various parts lof this invention, .and the arrangement of those parts, areillustrated drawings, of which- 4 Figure 1 represents a vertical section of this invention in operative position, and showing the intake, discharge and lift vpipes connected with it. Fig. 2 is a vertical section of this invention taken' on a plane at in Fig. 1. Fig. 3 is a plan view of the valve, somewhat enlarged. Fig. 4: is a side view of the rotary valve, the scale ofdrawing being the same as in Fig. 3. .Fig 5 isa vertical section lengthwise of the clear water in the accompanying i Specicaton ofLetters Patent.. v 1 3"g'ggqgnige'di Feb, 8, 191,6, Application led November 4, 1914. Serial No. 870,219. j v i intake, andthe concentric soil and water in- Throughof tLthe drawings and description, thesame letter refers to the samepart'.V

Considering the drawings, the dike or embankment'A beingerected, the frame a isset up usually on the tide water side of the dike, and'by meansofhangers B vthe ram b is supported uponfthe framef Thelram is provided with the discharge pipe C, lin this description termed the clear water` discharge pipe-to distinguish it from-the soil and water discharge or lift pipes. The ram has a clearwater intake'D, that is constructed ordinarily in practice with an elbow d having a movably threaded or like connection with a turning bowl or hollow headE. Thus, the outer end of thejintake D mayrise or fall, or the intake may be swung around horizontally.. Y

This invention is alsoprovided withv the discharge pipes F and f for soil and water, andl opening .into therambat right angles with the discharge pipe C. The discharge or lift pipes F pipes Gr portion H of the soil and water intake pipe.

The inclined pipes ,G- and g are termed iny this application', the ysuction pipes, as through them the soil and water are sucked up into the pipes F and f. By means of the sleeve connection h,`the vertical arm of the elbow K of the soil and waterfintake V76,-'

may turn on its axis. That is to say, ifthe hollow head or bowl bottom E of the ram b is turned, the vertical arm of the elbow K will turn on its axis, as it rises in the center of the bo-wl E. Figsland 5, that the clear water intake D carries the soil and` water intake 7c axially within it, as this invention is customarily constructed. Y i

. At the outer endof the intake D thereV is arranged a revoluble sleeve L, 'and at the outer end of the sleeve Lfthe're is secured the stirrer `The sleeve is revolved in the bearing m by the turbine 1N on the flow'of the water in ltheintake-D. It may be stated here, that the soil or'y silt intended to be dislodged and carried by the water in suspension, is very easily stirred up. In its finely divided state it requires but little dredging devices and and 7, are' connected bythe inclinedl and g with the upper and stationary It will be here noted in:

to displace it and mix it with the water f aroundv it.

The rotary valve of the ram is marked O, and it has the turbine buckets P and Q, one above the other The buckets arev designed to revolve the valve, whatever may be the direction of the water flowing through` the ram. The re maining parts of this invention are best described in connection with the explanation of its inode of operation.

In the operation of this invention, let it be assumed that the buckets .of the valve have taken the positions indicated by the broken lines in Fig. 2. There will be noted thetwo extensions 0r recesses R and 1 of the casing of the ram b, that enable the water flowing in either direction to pass the buckets whenv they are in the positions indicated. The valve will be revolved, and inl due course the cylindrical wall of the valve will close the recesses Rv and r. The water cannot now reach the discharge pipe C which opens above `the valve, but, the

water finds an koutlet by way of the pipe f after passing vthrough the bucket Q. In other words, the ii'ow of the water in the clear water intake D is never stopped. It either iiows outwardly by way of the discharge pipe C, or, by way of the soil and water discharge pipe f. There is now started an outwardly moving column ofv water in the pipe f, driven with some force by the momentum of the water flowing in through the intake D. That intake may be, and usually is, oi' some length. rlhe valve O is still turning under the action of the flowing water, and the cylindrical wall of the-valve soon closes the adjacent opening or mouth of the pipe f. The moving water inthe pipe f sucks in a portion of soil and water through the suction pipe. g, and that portion of soil and water is impelled through the pipe 7@ when the flow is `again started therein. The lift or soil and water pipes are led to that area whereon it is desired to deposit the soil carried by the water. The stirrer M is being constantly rotated and keeps the water near it charged with soil. If for any reason the stirrer should become obstructed, the water will continue to enter both the intake D and the soil intakev Z4, and, the infiow of the water alone is ordinarily capable of stirring up the easily iioated soil to a very large extent. Up to this point in this explanation of the operation, it has been supposed that'the water has been flowing into the intake D,

by reason of the high tide on the left or` outside of the embankment A, the' high water mark being indicated in Fig. l. Let it be now supposed that the tide has receded and the low water mark, also indicated in Fig. l has been reached. rlhe reservoir or sink on` the right of the embankment A will have been filled during the tidal operation, and the water from the right of the embankas best shown in Fig. 4:."

. pipe C, and is diverted ment A will now flow through, the ram and outwardly through the intake D. The iiow of water is constant as before, and the valve is revolved. rlhe water flows into the rain by way of the clear water discharge periodically by the valve buckets F into the soil and water discharge pipe F, and a flow started outwardly in that pipe by the momentum of the iniowing water in the pipe C. When the cylindrical portion or" the wall oi' the valve closes the opening of the pipe F adjacent to the valve, the iow in the pipe F sucks up a portion of the soil and water through the intake` ic and the suction pipe G. That is to say, when the water iiows, .upwardly through the ram as the parts are illustrated in the drawings, the Vsoil and water discharge pipe f is in service. But, when the water flows downwardly through the rain, the pipe F is engaged. By the use of this invention, both the rise and fall of the tide may be used to a greater or less extent.

Having now described this invention, and explained the mode of its operation, what l claim is l. In a hydraulic rain dredge, the combination with a ram having a clear water intake, a valve, and a soil and water intake, of a discharge pipe from the said ram, and a suction pipe leading from the said soil and waterintake and opening into the said discharge pipe beyond the said valve.

2. in a hydraulic ram dredge, the combination with a ram having a clear water in take, a valve, a soil and waterintake, a discharge pipe for clear water, a discharge pipe for soil and water, the said valve being arranged to control the said discharge pipes, and a suction pipe leading from the said soil and water intake and opening into the said discharge pipe for soil and water beyond the said valve.

3. In a hydraulic ram dredge, the combination with a ram having a movable clear water intake, a valve, a movable soil and water intake, a discharge pipe for clear water, a discharge pipe for soil and water, the said valve being arranged to control 'the said discharge pipes, and a suction pipe connected with the said soil and water intake and opening into the said soil and water discharge pipe beyond the said valve.

1i. In a hydraulic ram dredge, the combination with a ram having a movable clear water intake, a valve, ain1ovable soil and water intake arranged lengthwisey within the said clear water intake, a discharge pipe from the ram, and a suction pipe leading from the said soil and water the said discharge valve.

5. ln a hydraulic ram dredge, the combination with a ram having a clear water intake, a valve, a soil and water intake arpipe beyond the said ranged lengthwise within the said clear waterk intake, a discharge pipe for clear water, a discharge pipe for soil and water, thesaid valve being arrangedto control the said discharge pipes, anda suction pipe connected with the said soil and water intake and opening into the said soil and water discharge pipe beyond the said valve.

6. In a hydraulic ram dredge, the combination with a ram having a movable clear water intake, a valve, a movable soil and water' intake, movable means arrangedl at the mouth of the said soil and water intake and constructed to stir' up the soil, means for operating the said stirring means, the said ram having a discharge pipe, the said valve being arranged to control the said discharge pipe, and a suction pipe leading from the said soil and water intake and opening into the said discharge piper beyond the said valve. l

7. In a hydraulic ram dredge, the combination with a ram having a soil and water intake, ing adjacent to the valve and controlled by the valve, a suction pipe connecting the said discharge pipe and the said soil and water intake, a clear water discharge pipe connect-V ed with the said ram, and a water intake connected with the ram below the said valve.

S. In a hydraulic ram dredge, ,the combination with a ram having a rotary valve, of

i a discharge pipe opening adjacent to the discharge pipe,

valve and controlled bythe valve, a soil and water suction pipe connected with the said a clear waterl intake connect ed with the ram below the valve, and a clear water discharge pipe.

' 9. In a hydraulic ram dredge, the combination. with a ram having a rotary valve, of a discharge pipe opening adjacent to the valve and controlled by the valve, a clear water intake connected with the ram below the said valve, a clear water discharge pipe, a soil and water intake arranged lengthwise within the said clear water intake, and a suction pipe connecting the said soil and water intake with the said discharge pipe mentioned as opening adjacent to the valve.

Copies of this patent may be obtained for a rotary valve, a discharge pipe open- Y I 10. In a hydraulic ram dredge, the combination with a ram havingV a soil and water,

intake, of a rotary valve having buckets arf ranged one over another wherebywater flowing in either directionwill revolve the valve, dischargepipes opening adj acent to the said valve one opening at a higher point than an'- other,ythe vbuckets of the valve being positioned to register with the said openings of Y the discharge pipes, soil andwater suction pipes connected with the said dischargeA pipes, a Clearwater intake opening below the valve,

ing above the said valve, and the wall of the ram having recesses for the passage of water' past the valve to the lsaid discharge pipe above the valvevwhen'the valve is in a predetermined position.

a clear water discharge pipe open- 11. In a hydraulic ram,the combination l with an intake, lof a discharge pipe, a lift i Vthe said valve being constructed to periodically cut oil the passage of the water into the said pipes, the said valve beingprovided with buckets whereby the flow of water in either vdirection through the ram revolves lthe valve, and the ram having a portion eX- tending below the said valve and rconnected with the said intake.v

for actuating it by the iiow of In testimony whereof I aix my signature f in presence oftwowitnesses. j

EDWIN K. OBRIEN.

Witnesses:

HORACE R. GEORGE, RICHARD C. BALINGER.

ve cents each, by addressing the Commissioner of Patents, Y Washington, D. C.

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