US2667749A - Vibrator device - Google Patents

Description

Feb- 2, 1954 s. sTEux-:RMAN

VIBRATOR DEVICE Filed June 25, 1952 C M n/w Z (d Patented Feb. 2, 1954 YUNITED STATE S PATENT OFFICE J2,667,749 'viisitAToR Ef'IC Sergey Steuerman, New York, N. Y; Applittidn June z5, 1952, ,'seri'al 516.29552@ (Cl. "GIL-'365 6 Claims.

Thq :present invention relates to vibrator'devices jand 'more particularly to a Vvibrator device with streamlined 'body for insertion into loose l sai-idysoil 'or'like mass forcompacting 'the same.

j tisfan object of the present invention to pro'- yiie means facilitating corniciaction of loose 'nias'ses'of theaforesai'd type in a very economical,

`eicient and guickmanner.

fvi'le means 'ensuring `reduced 'cost :for mainteance, "and permitting lready assembly and in- `creased"'sturdiness of ktrie 'parts of which the vibrtondevceconsist's t Heretoore, vibrators iiei'eeonstructed with a streamlined s lrell containing eccentric means for imparting vibrations to 'the outside of the sheii transfer "to the .surrounding sandyjmass Ato aotjjsainen. .A vibrator of this kindis discbarser'sadorlike massi I Wlien duringsand compaction the 'vibrator is retracted V step b'vjstep( the "sand 'layer 'previously permeated with Water orlikeliquid orsuspension 'must undergo a preeompactionstep Wiiereby'excess vWater` or liquid is to be 'squeezed out and drained o'. escapeof such excess liqui d hoite-verencounters greatidiiculties, which lead 'to aoonsideraplejloss-of 'time andfeconorny in pferforining the compaction process, when used for sltyjsand. 'I he 'presenth'invention overcomes these and other disadvantaesjand provides means facilitat- :iiiig'easyjrenioval-of excess liquid during' compaction ofthe perm ated. sandy mass.

The known, vilorators generallir foorn'pact the 's'a-ndjaround theentire outside civ their shells.v To 'this end, tl'gvibrator to' be withdrawn is retracted through 'compacted sand layers or areas, lwhich show great resistance to anyinovement of "water or like liquid when the treated material is Silty sand. Accordingto the invention the vibrator japparatiis is so 'modied.and improved tliaftit permits ready movement of'sueh water along the uppershell Dai-t ofthe apparatus, The inherentvibrations ofthe vibratorA apparatus will cause loosening up of'internalstruetural 'connections under tension after 'a certain time yof use'. vThis 'nia-lees it necessary to vvdis''assemble the apparatus entirely in Creelto) tightens; repair these 4ecime stione. fllie present invention materially improves the 'assembly of these vooit-- "nections:v

stenta appara-tus for comij'aetirig'a loose inass'coinriiises oonnectnsineans connecting said Sli'ell patstogether, Asaid connecting nieams irieliilin'g ad pllirality of fins or lugseaoh having a iirstfporti'on and aseconci portion, one or said portions being mounted outside the upioer shell part 'and vvvprojecting therefrom, the otliferof 'said portions being mounted outside theglower shellpart' andbrojecting therefrom, and fastening "means for l"at-- tackling said 'lug portions together.

According 'to `the present "invention, "one 'grob portions of said ms Vis provided with 4a" projection 'fitting into 'said lug's depressions, whereby fthe 'lugs yin""assembld Condition lWill 'be 'securely Lregis tered and interloeked together.

The 'invention f nrther -coni'enlplatfes the'p'o'sition of "afinotorfvthin VVthe "assembled shell "and jds'posed in-proiciiiiity of one Iof the poti'o'ns'of lt1ie ii1is.

Since tlie'isf are on'l theoutside, the connection means which attach triefsnell parts togtiier :are easily accessible and. i'iayreadily betighten'ed.

The above and otlieilobjeets V`and 'features will seription;v reference being Triad t'oy the" accompany'- irierdrawing- 'ihrtdpintofsoi1,'with parts being broken may fcentrieweghtm 'seing connected to motor la connections 25. The electric current to the motor is supplied through a cable I9, whereas liquid or uid is supplied through the vibrator device from conduit means 20 to a manifold connected to pipes 20a, 2017 for discharge of liquid at the forward or advancing end 22 of the vibrator device I0. Further liquid is supplied through conduit means 2I to the upper vibrator part Mib for discharge at nozzles 2m and slots 2lb.

As can be more clearly seen in Fig. 4, each ange or lug connection 25 consists of a, lug part 25a fixed exteriorly of and to the lower shell part Ia whereas an upper lug part 25h is fixed or otherwise connected to the upper shell part I8b. Each lug part 25a has a recess or depression 23 into which ts the projecting lug extension 24 of the upper lug part 25h. Suitable watertight gaskets may be arranged to attain improved connections.

The ange or lug parts 25a and 25h are provided with bores or passageways 25 which are in registry with each other to thereby facilitate insertion of screw bolts 21 for tightly connecting shell part I8a to shell part I8b. It is preferred to have the outwardly projecting flange connections 25 equally distributed over the circular shaped outer surface of the shell I 8, as more clearly seen in Fig. 2. Y

It will 'be further noted that the lug connec- 'tions 25 are tapered to facilitate cutting of channels in the sand layers. To this end the lower lug part 25a extends obliquely in upward direction toward the outer end 25e of the lug part 25a and similarly, the lug part 25h tapers downwardly toward the lug end 25d as clearly apparent from Fig. 1.

The function of the vibrator device is known Vper se and the operation thereof has been more vclearly explained in the aforesaid prior U. S.

Patents Nos. 2,360,803 and 2,334,228.

When the vibrator I is being retracted from Within the funnel I I, the compaction of the sand material I3 takes place at various degrees. First, a precompaction is achieved in zone A while the fina1 compaction takes place approximately at the forward end of the vibrator and in zone B. Above the lug connections 25 which form ns. there is a zone of sand C, which has been fed or supplied from the open upper end of the funnel. Above and in this zone of relatively loose sand C is disposed fluid l2, such as water, which is also supplied in a regulatable amount through hose connection 2|, to nozzles 2Ia and openings or slots 2lb so that it seeps through the loose sand zone C, and is then subsequently brought in contact with the precompacted sand zone A through channels D cut into the sand zones by means of the cutting iin-forming flange or lug connections 25, as clearly indicated in Fig. 1.

Thus, a direct connection between the fluid I2 and the mass to be compacted in zones A and B is achieved through the fin-shaped ange or lug connections cutting into the sand zone C the aforesaid channels D. Consequently, a connection between the iiuid l2 and the lower sand zones A and B is achieved whereby water or similar iiuid communicates through said cut channels with the loose sand.

While the vibrator is withdrawn from the funnel in the direction of arrow X step by step and compacted which contributes to a speedy and I Le',

highly economical compaction operation. It is further to be noted that the lug connections 25 contribute to an increased precompaction in the zone A since the vibrations from the eccentric weight I 4 are also communicated through the shell I8 to the lug connections 25. These lug connections further increase the strength of the vibrator device and facilitate repairs in and disassembly of the interior of the vibrator when needed.

In comparison with heretofore known, streamlined vibrators, the compaction process in accordance with the construction of the vibrator of the present invention is intensified and becomes more economical.

During the compaction of the successive sand layers which are permeated with a fluid or water, excess water may be squeezed out from the respective sand layers in accordance with the present invention and will thus be drained ofl. This excess or surplus water had generally no opportunity of escaping from silty sand which made the compaction process or operation considerably slow when used in silty sand. The channels D now temporarily cut into the sand layer above the actual precompaction and compaction zones A and B not only facilitate greatly the removal of excess or surplus fluid or water but also contribute to a certain grouping of the sand particles prior to the precompaction step during which the cut channels subsequently disappear when the lower part I8a of the vibrator I0 comes into action and completes the compaction.

It is well understood thatl the arrangement and the dimensions of the lug or ange connections rnust be carefully selected and it has 'been found that approximately six ange connections or lugs equally distributed over the circumference of the vibrator and protruding therefrom to an extent of approximately one fourth of the radius of the vibrator shell, wil1 be suitable for average practical requirements.

The lug connections and the bolts employed therefor are adapted to transfer the vertical forces from the vibrator through the upper part Ib to the supporting derrick or crane (not shown) and are susceptible to withstand continuous vibrations.

The screw bolts are easily accessible and permit easy checking and tightening, if necessary.

rIt will be observed that the parts of the lug connections interengage with each other at the recesses 23 and thus prevent any horizontal rotation of the upper shell part I8b with respect to the lower shell part I8a. Such structure further contributes to a rigid vibrator construction. Residual torque forces transferred through the aforesaid bolts produce in the same smaller shear forces when they are located outside the shel1 I8 on a suitably large diameter whereby the lugs transfer the torque forces from the shell tothe head of the vibrator. Y

If such lugs were made long as compared with the space between two adjacent lugs, sand would wedge in and would stick to the vibrator. In such case, these lugs would produce an increase of the total diameter and weight of the vibrator device but no vertical channels could be attained in the precompacted sand layers. For the purpose of producing vertical channels the lengths of the lugs must be made shorter than the transverse distance between two adjacent fins or lugs and the lugs should have wedge-shaped configuration to avoid deposit of sand thereon.

Although several specic Vexnbodiments of the invention have been described and shown in the drawing, it should be noted that the invention may be realized in modied form and adaptations of the arrangements herein disclosed may be made as may readily occur to persons skilled in the art without constituting a departure from the spirit and scope of the invention as deined in the objects and in the appended claims.

Having thus described the invention, what is claimed as new and desired to be secured by Letters Patent, is:

1. A vibrator device for treating earth and like material; comprising an upper shell part, a lower shell part, said Ishell parts when in assembled condition being adapted to house vibrating means, a plurality of lug means arranged in spaced apart relation to each other, each lug .means comprising a portion exteriorly xed to said upper shell part and a further portion eX- teriorly iixed to said lower shell part, the respective lug portions being in registry with each other in assembled condition of said shell parts, and connecting means extending into said lug means, respectively, to hold the respective portions together, the length of said lug means in assembled condition of said shell parts and the distance between said lug means being sufficient to substantially obviate, between said spaced apart lug means, accumulation of material under treatment, said lug means being shaped to cut channels of appreciable dimensions into said material when moving said lug means relative to the latter.

2. A vibrator device according to claim l, wherein said lug means are disposed substantially along the same level and adjacent the line of juncture of said upper shell part and said lower shell part, the height of each lug means being smaller than the distance between two adjacent lug means to thereby impede wedging of said material therebetween.

3. A vibrator device according to claim l, including a motor housed in said lower shell part and forming a part of said vibrating means, said motor being arranged in proximity of said lug means.

4. A vibrator device according to claim 1, wherein the respective portions of each lug means are provided with interengageable formations to thereby take up torsional forces when acting between sad upper and said lower shell parts.

5. A vibrator device according to claim 1, wherein said further portions of said lug means are upwardly tapered and larger in width than the portions of said lug means which are downwardly tapered and lxed to said upper shell part.

6. A vibrator device according to claim 1, wherein the lug portions of said lower shell are larger in width than the lug portions of said upper shell part, said lug portions of said lower shell part being provided with recesses in which said lug portions of said upper shell part are engaged in said assembled condition of said shell parts.

SERGEY STEUERMAN.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 2,229,912 Baily Jan. 28, 1941 2,233,833 Jackson Mar. 4, 1941 2,334,228 Steuerman Nov. 16, 1943 2,360,803 Steuerman Oct. 17, 1944

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