US1686321A

US1686321A - Sand pump

Info

Publication number: US1686321A
Application number: US99551A
Authority: US
Inventors: Willis E Groh
Original assignee: Individual
Current assignee: Individual
Priority date: 1926-04-03
Filing date: 1926-04-03
Publication date: 1928-10-02
Anticipated expiration: 1945-10-02

Description

Oct. 2, 1928. I 1,686,321

w. E. GROH SAND PUMP Original Filed April 5. 1926 Mw INVENTOR ATTORNEY Patented Get. 2, 1928 sann PUMP.

bed of gravel, sand and the like will be.

loosened and a proper quantity of water admitted with the loosened material into the mouth of the suction pipe; to provide a cutting head in connection with the suction vplpe constructed in a manner as to prevent choking of material in the headand mouth of the suction pipe and thereby obviate in-' terruption in the operation of the apparatus; and to provide in connection with the suction pipe and cutting head a shield applied in such manner as will prevent the cutter head from becoming, overwhelmed by caving material and the. operation thereof thus interrupted. j V

These objects are accomplished by the construction illustrated in the accompanying drawings, in which: i

Fig. 1 is a side elevation of thesuction pipe of a sand pump, and showing the pres ent invention in connection therewith;

Fig. 2 is'a vertical section of a cutting head in connection with the mouth ofthe suction pipe and including a portion of the shield;

Fig. 3 is a top plan view of the cutting head. and shield, and including a portion of the suction pipe; and

Fig. t is a bottom plan view projected from Fig. 2.

The characters appearing in the description refer to parts shown in the drawings and designated thereon by corresponding characters.

In Fig. 1 is shown a fragment of float or barge 1 which constitutes the support for the pumping apparatus of which the suction pipe 2 is a part. The suction pipe has a downturned mouth section 3 at its outer end and a flexible connection 4 at its inner end.

the latter admitting vertical adjustment of the suction pipe. The flexible'connection 1s coupled by means of a pipe 5with a pump,

ing therein for the Application filed April e, 1926, Serial no- 9 51; Renewed July 1a, 1928.

ment therewith a cutter head 8 consisting of];

a cylinder-9 having an annular series of teeth 10 made in its lower end, and having at its top a v gear 11 forming a closed head therefor, said gear being rotatably mounted on the pipe 3. An annularv collar 12 is;

fixed on the pipe 3 below the hub 13 of the gear'll, and a bracket 14 is fixed on, said pipe said hub so that verticalmovement of the gear on Said pipe is prevented. The cutter head has fixed therein at a point approximately midway betweenjthe lower end of the pipe 3 and the-lower end of the cylinder 9 a series of cross-bars 15 disposed transversely 1n the cylinder to form a grat forth. p

A countershaft 16 is mounted in an arm 17 that extends from thebracket l t, and

purpose hereinafter set v also in a supportin arm 18v that is mounted on the pipe 3 near its'upper end, and upon the lower end of said countershaft is fixed a pinion 19 that meshes with the gear 11 so that asthe countershaft lG revolves the cutter-head is actuated accordinfilyi Upon the upper end of the countershaft 16 is fiXed abevel.geai;"20. that meshes with a compan- 1011 bevel gear 21, which latter bevelgear is ,I mounted upon and has splined relation with a propeller shaft 22 by which the counter- 24 provided tondmit of] a corresponding bending action of the propeller shaft when the suctionpipe is adjusted; lhe rear end of the section of the propeller shaft has connection with a gearing 26 by means of which the propeller shaft is actuated. V

A shield consisting of acurved plate 27 is mounted uponarms 28 that project from the bracket 14: and also upon a spider 29 that is'fixed upon the pipe 3 at a point thereon above said bracket. The lower end of. the shield 27 overhangs the gear 11 and the upperportion of the-cylinder 9 so that the front. of the cutter head is sheltered thereby. In operating the invention suction is es-. tahlishedin the suction pipe. and the gearing 26 is driven in the usual manner from a suit-able source of power (not shown) such as is ordinarily provided for actuating similar apparatus.

7 The'suction pipe is then lowered. into the water and the cutter head,

while being revolvedcomes into contact with the submerged earthen material whlle-water is being drawn up through the cylinder and into the suction pipe. As the earthen matter is loosened by the action of the cutter head and rush of water, it becomes broken up, .and the particles of sand and gravel are drawn up through the suction pipe with the flow of water and are from thence disposed of in the usual manner through the pumping mechanism. Stones and other substances too large to pass between the cross bars 15 are prevented by the grating from rising and choking the suction pipe, and when their accumulation in the lower end of the cylinder becomes objectionable, their removal is effected by elevating the suction pipe.

What I claim is j 1. In apparatus of the class described including a vertically adjustable suction pipe and means for supporting same in adjusted positions, a cylindrical cutter head rotatably mounted on the suction pipe in axial alinement therewith, a portion thereof extending beyond the mouth of said pipe, the upper end of said head being closed, and its lower end being toothed; a grating fixed in the head disposed between the toothed end of the head andthe mouth of saidpipe; a driving mechanism including means for actuating same, having geared relation with said cutter head; and a shield in supported relation'with said suction pipe and overhang,- 'ing the upper portion of said cutter head.

2. In apparatus of the class described ineluding a support, an angular suction pipe in vertically adjustable relation with said support; a rotatable cutter head mounted on said suction pipe and surrounding the mouth thereof; a countershaft in supported relation with said suction pipe and having gear ed relation with sald cutter head; an actuating mechanism on said support; a propeller shaft having an universal joint therein, one

portion of said propeller shaft having supported relation with said suction pipe and being longitudinally adjustable relative mounted upon said suction means at the mouth thereof; a mechanism, including actuating means therefor, having geared relation with said cutter head; and a semi-cir-' cular shield insupported relation with said suction means and overhanging the upper front portion of said cutter head.

4:; In apparatus of the class described including a supporting means, an angular suction pipe in verticallyadjustable supported connectionwith said means; a cylindrical cutter head rotatably mounted on said suction pipe and surrounding the mouth thereof; a shield consisting of a curved plate mounted upon said suction pipe a'nd'overhanging the upper portion of said cutter head and extending throughout its length in parallel relation with the cylindrical wall of said cutter. head; and actuating means for said cutter head.

5. In apparatus of theclass described, an excavating" means including a movable suction'pipe and rotating cutter head encompassing the intake end of said pipe, and a semi-circular non-rotatable shield, the lower portion of which overhangs the front upper 7 portion of said cutter head, the lower end and rear portions of said cutter head being exposed.

In testimony whereof I afiix my signature.

WILLIS E. Gnorr.