US887506A - Suction-dredge. - Google Patents

Description

PATENTED MAY 12, 1908.

C. N. NEWCOMB. SUCTION DREDGE.

APPLICATION FILED 0OT.19,1907.

2 SHEETSSHEET 2.

I To all whom it may concern:

which the following is a specification.

.- the'description proceeds, the invention condescribed, illustrated and claimed.

'tion dred more reliable in operation, less liable to get tical longitudinal section through the s op PATENT OFFICE.

If CHARLES N. NEWCOMB, OFWEST PALMBEACH, FLORIDA.

SUCTION-EDREDGE.

Specification of Letters Patent.

Patented'May 12,1908.

Application filed October 19, 1907. Serial No. 398,218.

1, CHARLES N. NEW- United States, residing at est Palmbeach, in the county of. Dade and State of Florida, have invented new and useful Improvements 1n Suction-Dredges, of

Be it known that COMB, a citizen of the This invention relates to suction dred es, the object of the invention being to simp ify and improve the general construction of suc es, whereb' they are rendered out of order and capable of being manipulated. I

One of the main objects of the present invention is to rovide in connection with that element .whic "scoops up the sand, mud or other material, means, forsupplying water thereto in such manner as todislodge such material from the scoop and insure the delivery thereof to the suction pipe.

With the above and other objects in view, the nature of which will more fully'appear as more easily sists in the novel construction, combination and arrangement of parts hereinafter fully In the accompanying drawings, Figure 1 is a plan view of the dredging apparatus mounted on a barge. Fig. 2 is an enlarged plan view of the hollow rotary head or scoop element of the mechanism. Fig. 3 is a side elevation of the suction pipe. Fig. 4is averof-the apparatus showing the parts adjacent thereto anda portion of the driving mechanism. Fig. 5 is an elevation of the gear caseand attached parts, showing the suction, pipe in section. Fig. 6 is a plan viewof t ethead of the suction pipe. Fig. 7 is a similar view of the head of the hollow rotary head or suction element.

' Referring to the drawings, and particu: larly to Fig. 4, theapparat'us contem lated in this invention comprises essential y an inner tube or suction pipe section 1, which constitutes a portion of the suction pipe of the a paratus, while 2 designates the dredging e eme'nt which is in the form of a hollow rotary headsurrounding and revolving around the suction pipe section 1.

, The suction pipe section 1 is non-rotatable and is preferably coupled by a flexible section 3 to the suction pipe 4 which leads to a suction pipe section 5 of suitable construc tion; said pipe communicating with the disportion charge pi e 3, the last named parts being indicated y dotted lines in Fig. 1.

The suction pipe 1 is closed at its outer end by a head 7 having an inwardly offset hollow boss 8 which is threaded, to receive a grease cu 9 adapted to contain a suitable supply of ubricating material which feeds through openings 10 in thehoss S to the bearing between thepipe 1 and head 2. The member 2 is closed at its outer end by a head 11 which is provided with a journal portion .12 which works within the hollow boss 8 of the pipe 1,;as shown in Fig. 4, the two heads 7 and ll'being connected by a bolt 13. The outer end or head of the bolt 13 is covered by a protecting ca 14, and by reason of the construction just ierein above described all foreign matter is excluded from the bearing between the pipe 1 and head 2.

. The pipe 1 is provided with an elongated opening 15 which gradually tapers from end to end, the smaller end being forward while the larger end is toward the outer end of the pipe where the greatest amount of material is taken in, it being understood that the sand, mud and other material all passes inward within the opening 15. The head 2 is provided with one or more spiral series of openings 16, each of which is partially covered by .a scoop or bucket 17 open at'the frontand back and connected at its 0 the outer surface of the hea 2 as shown at 18. Each bucket or scoop is preferably formed of sheet metal and the main body thereof is transversely inclined with respect to the outer surface of the he vide a relatively large scoo orifice 19 at the front in which the materia is received, and the relatively smaller water inlet assage 20 which in the rotation of the hea is at the rear of the scoop or bucket. The forward edge of the scoop shaves the sand or mud and gathers the same into the scoop while water enters the rear orifice 2-0 and dislodges such material from the outer Wall of the scoop, so that it is readily sucked inward through the opening 16 and carried inward through the opening 15 in the pipe by suction when the bucket orscoop comes opposite suchopening 15. The feature just named has been found in practice to be a most valuable one, as it prevents congestion of mate rial in the scoops or buckets and greatly facilitates the operation of the machine as a whole.

Secured to the inner end of the head 2 is a posite ends to sprocket wheel 21 having a laterally project ing rim .22 on which the sprocket tee th are located. n r 22 is a circular series of anti-friction rollers 23 which work upon a wear band 2 1 surrounding and secured to the suction pipe 1, a roller hearing being thus for! I tween the sprocket wheel and the winch permits the head 2 to revolve ire with a miniium'amount of friction ound the pipe 1. Cooperating with the sproeket wheel 21 is a sprocket chain 2 5 which derives its motion from a sprocket pinion 26 fast on a motor shaft 27 extending in a plane parallel to the pipe 1., The shaft 27 is driven by a motor or small engine 28, the bed or base of which is provided with goodstrong trunnions 29 journaled in suitable bearings on the barge, as shown in Fig. 1, and-by means of this construction, the engine or motor-28 is tilted together with the ipe 1 and shaft 27, the oper ative relation o which is maintained at "all times.

The sprocket Wheels and chain above le;

the rotary head turns, While the other plate 31 is permanently secured to a flanged collar 32 fast on and surrounding the pipe 1.

33 designates a spacing rim in the form of an annular band which is inter osed between the outer end portions of the ates 30 and 31' and securely held in place byliolts 34 or their ecpuivalent, thus forming a tight gear case in W ich the sprocket driving. mechanism for the rotary head 2 is inclosed.

Secured to the plate 31 of the gear case is a bearing bracket 35 provided with suitable reinforcing flanges 36 and 37 and also provided with slots 38 to receive the securing bolts by which the bracket'is fastened to the gear case,

thus permitting said brackets to be adjusted vertically to-glv'e the 1 roper tension to thes rocket chain 25. T e bearing bracket 35 a so embodies a movable cap piece 39 to admit of the removal of the motor shaft 27 when necessary.

The flanged-collar 32 is provided at opposite sides with lugs 40 to which are secured fiheouter ends of a pair of inwardly diverging braces 41 secured at suitable points as at 42 to the barge, which braces act to stay and kee in position the outer end of the pipe 1, Whi e in operation, whilepermitting said pipe to rise and fall during the dredgin operation. The brace rods 41 are preierabl yflprovided with turn buckles 43 so that they may be kept under theroper tension.

' Having thus ully described the invention, what is claimed as new is l 1. A suction dredge-comprising a suction pipe section in communication with the suc tion pipe and provided with a single opening, and a rotary head revolving around said pipe Working inside of the i'lz. go or rim ate 30 having a central opening in which senses and concentric therewith and embodying a series of inlet openings arranged to successively register with the opening in the suction pipe section.

2. A 5110111011 dredge embodying a suctiontion pipe and provided with an elongated opening wider at its outer end than at its in ner end and a rotary head revolving around said pipe and comprising a series of inlet openings adapted to successively .register with the opening in the suction pipe section.

4. A suction dredge embodying a suction pipe section, in communicat on with the suction pipe and provided with an elon ated opening extending lengthwise thereo and gradually increasing in width toward one end, and a rotary head revolving around said pipe and comprising a plurality of inletopenmgs adapted to successively register with the opening in the suction pipe section. 5. A-suction dredge embodying a suction pipe section in communication with the sucv tion pipe and provided with an'inlet opening,

a rotary head revolving around said plpe and comprising a plurality of inlet openings adapted to register with the inlet opening of erture for the i et of the material stantially as described.

6.. A suction dredge embodying a suction pipe section, in communication with the suction pipe and provided with an inlet opening, a rotary head revolving around said pipe and embodying a plurality of inlet openings adapted to register with the inlet opening of the plpe, and scoops or buckets arranged adjacent to said openingsin the rotary head,

each of said buo ets being open at the front side to receive the dredged material and also provided at the rears'ide with a water inlet 7. A suction dredge embodying a'suc'tion pipe section, in communication with the suction pipe and provided with an'inlet opening extending lengthwise thereof and increasing,

in width toward the outer end ofthe pipe,

and a rotary head revolving around said plpe and comprising a plurality of inlet openings adapted .to register with the inlet opening of tion pipe and provided with an. inlet opening, 180

100 the pipe, and scoopsor buckets arranged ad- -jacent to said openings in the rotary head, each of said scoo s providing a scoo in ap-' e ged and an independent water inlet orifice, sub:-

- said head and fast thereon, a motor shaft extending parallel with saidrotary head and geared tothe wheel onthe rotary head for imparting motion to the latter, and a motor for driving saidshaft. 1

9. "A suction dredgeembodying a suction pipe section, in-communication with the suction pipe and providedwith an inlet opening,

a rotary head revolving around said pipe and provided with inlet openings which register with the-inlet opening of the pipe, and a motor mounted in fixed relation to the suction pipe, adapted to swing therewith and geared to the rotary head for driving the latter, sub-.

stantially as described.

2o 10. A suction dredge embodying'avsuction pipe section, in communication with the suc-\ tionpipe and provided withan inlet opening,

.arotary head revolving around saidplpe and provided with a series of inletopenings which register with theinlet opening of the pipe, a

sprocketwhe'el fast to the rotary head and encircling the pipe, a countershaft extending parallel to the pipe, a sprocket wheel thereon, and a chaln connecting said sprocket wheel and the sprocket wheel on the rotary head, and means foractuating said countershaft. 7

11. A suction dredge embodying a suction pipe section, in communication with the suction pipe and provided'with an inlet opening,

a rotary head revolving around said pipe and provided with inlet openings which register with the inlet opening of the ipe, and a-mo tor operatively geared to said head for imparting motion to the latter, the said motor and pipe being supported upontrunnions so that in the swinging movement of the head and parts carried thereby the motor will swing correspondingly thereby maintaining the operative relation between the motor and the parts driven thereby.

In testimony whereof IafliX-my signature in presence of two witnesses.

CHARLES N. NEWCOMB. Witnesses:v

FRANKLIN SHEEN, GnoaL. BANNING.

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