US503733A

US503733A - Dredger

Info

Publication number: US503733A
Authority: US
Publication date: 1893-08-22
Anticipated expiration: 1910-08-22

Description

(No Model.) I 3"'ShetS-Sheet 1.

' L. W. BATES.

DREDG'ER. No. 503,733. Patented Aug. 422, 1893.

..\=M...........H..H,........H

cNoModeLm s mm2-sheet L. W. BATES.

DREDGER. Patented Aug. 22, 1893.

3 Sheets-Sheet 8.

Patented Aug. 22, 1893-.

(No Model.)

L. W. BATES.\

` DREDGER. NOQ 503,733.

Limi/m W130i@ UNITED STATES PATENT OFFICE.

LINDON W. BATES, OF CHICAGO, ILLINOIS.

DREDG ER.

SPECIFICATION forming part Of Letters Patent N0. 503,733, dated August 22, 1893. Application filed VSeptember 21, 1892. Serial No. 446,443. lNo model.)

To all whom it may con/cern,.-

Be it known that I, LINDoN W. BATES, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Dredgers, of which the following is a specification. Y

My invention relates to dredging machines, and consists of various features, details, and combinations hereinafter set forth and claimed.

In the drawings, Figure l is a side view of a dredger provided with my improvements; Fig. 2 a top plan view of the same; Fig. 3 a side view partly in section of the pivoted suction-pipe, cutter, and attendant parts; Fig. 4 a vertical sectional view on the line 4 4, Fig. 3; Figs. 5, 6, and 7, views illustrating the construction of the cutter, Fig. 7 being a transverse sectional view on the une (-7 of Fig. 3; and Figs. 8 and 9, respectively sectional and plan views of the joint or connection between the boat and the pivoted suction-pipe.

A indicates the dredge boat which may be of most any desired construction, and which will of course be provided with the necessary engines and boilers and other mechanisms, as is usual. Upon the deck, at one end is a derrick B comprising the vertical post a., and the horizontal arm b; the said derrick being suitably braced and arranged to swing or turn upon an aXis coincident with that of the upright post. Extending across the timbers forming the arm b, is a shaft c carried in suitable bearings d and provided with one or more sleeves or sockets e designed to receive stay rods f projecting from suitable sockets g mounted upon the ladder C in the same manner essentially as the sockets c are mounted upon the arm of the derrick. The object of these rods f is to prevent the latter from swinging laterally out of line with, or independently of, the derrick. By mounting the sockets upon shafts as shown, they are permitted to rock or tip slightly so as to allow the rods to adjust themselves, as the ladder is raised and lowered. To raise and lower the ladder, I employ a rope or cable h and an engine t', (see Fig. 1;) the cable passing from the engine, to a sheave j at the upper end of the derrick post, thence to a sheave lo at the end of arm b, and nally about a sheave or pulley Z carried by the ladder. By placing suitable marks or graduations upon the rod or rods f, the depth to which the ladder is submerged may be readily and accurately determined.

The ladder may be variously constructed, but in the present instance I have shown it as comprising two longitudinal timbers D D arranged substantially parallel to each other and carrying between them the suction pipe E.

The suction pipe E is secured to the boat, and to the supply-pipe of the pump, by means of a compound joint or connection shown in Figs. 3, S, and 9, which allows the said suction-pipe to swing laterally and also to be raised and lowered. Supply pipe F which conveys the material to the pump, is provided with a Vdownwardly-turned neck or outer end G, the lower end of which is provided with a lateral iiange m in the under side of which is formed a grooveot.

H indicates a curved pipe or elbow whose upper Vend is provided with a ange o and groove p, the flanges fitting squarely against each other, and the grooves coinciding or coming into line to form a larger groove, one part otwhich shall be in the pipe G while the other part is in the pipe H, as clearly shown in Fig.` 8. Suitable two part brass packing rings q seated in this large groove, form a water-tight joint between the two pipe lsections G H while allowing the latter to turn relatively to the former upon the stem or axis a" carried in the step or bearing I. Near its upper end, the pipe-section H is grooved circumferentially t receive a band or ring J, which is provided with lateral journals K carried in bearings or brackets L L,-which latter are bolted or otherwise rigidly secured-to the boat. The band or ring J while holding the pipe-section H in proper position relatively to the pipe Gr, allows the former to turn upon a vertical axis coincident with the step bearing I.

Brackets L and studs or journals K are designed merely to support and steady the pipe but not to permit any oscillation of the latter upon such journals as this is prevented by the step-bearing I. Formed on the front side IOO ts within the curved elbow'H,-^`both of said I:

ot the elbow'or ypipe section -His abracket N, in which is 'journaled a shaft M; saidshat being provided with radial depending arms O carrying at their lower ends a yoke, frameor band P. This yoke or frame P is pivotally mounted betweenandgtothe arms @,and i is permanentlysecured to the suction pipe E, so that when the suction pipe is raised and lowered it will be supported at its upperfendlf by the arms which swing from the shaft Mi as a center.

Secured to the vupper .end `of thesuctioni` pipe E is a curved extension or elbow .Q which elbows or pipe sections being curved on the arc of a circle concentric with the shaft "M, thereby `formingacurved telescopic join-tfbef tween thesuctionpipe-and the pipeH. ,Suitf ablejpackingrings sare seated in a `grooveon the 'inside of pipe H and arranged to .bear upon the suction-pipe so 'as Ato 'make-a-watertight joint.

,Atitsopposite end, the suction pipe is. provided with a mouth piece Yor casting FRf Whichfis formed or provided with `anfelon-ll gated collarorsleeve Sto receive thefcutter shaft'T. This -shaft'or axle'T fis keyed lor" sleeve, land carries -at its forward -end theoscillating cutterU,-the saidcutter'being tree to turn -upon the-Shaft, while'preventedfrom ymoving Vendwi'se Zby being clamped be-tween gthefhead or enlargement on one end of "the ;shaft,'and the front-end ot lthe casting R as shown in Figg. yCutter Uis made u-p`=ofz1a :hub Yo r bodyfportion t -to Ii'tupon the shaft'I, a disk-or'plate u, and a series of Iknives 11. Half of the knives face Oneway (see Fig. IL71) Vwhilev the'otherhalf face in the opposite fdirection. They are provided with -angleirons v w, which latter are secured, -fres'pectively, 1to1 the^disk u, and the -tront endl-orange-ofthe aton'e end1\tothe rocker,armsandattheother end'tothe crank wheel (Voti-the engine mounted on the frame A. Of course when the rocker arms (to which the chains are connected) are oscillated alternately, they Will,`acting 'through :the saidzchainszor cables X, and arms y y', .oscillate or rock the cutter, thereby causin g the latter to loosen up the lnaterial as is rwell' understood.

Upon reference to Figs. l, 3, and 9 it will be noticed that the shaft or axle M, carried in the bracketN'lof :pipesection1H,proj ects through AVthe side walls of theframe or support A',-

thelatterbeing provided with bushings D as shown in Fig. 9 to receive the ends of the shaft. From this construction itwillbe'seenthatathe ladder and attendant mechanism-move from, or ri'seand lfallfrornftheshat't M as a center. The cutter maybe-operated lfroman engine g mountedupon fthe lboa't, but I prefer 'thereonstruction shown.

Having described =m-y`invertt`ion, wha't jI claim isl. lnpcombination with a boat, aiderric'k provided-with lthe oscillating socketsl cfa pivoted ladder or suction pipe, provided 'with similar sockets g, yand v"the rods -orfbars f otherwise rigidly afti-Xed in position in rthisi mou-ntedin the sockets. Y v y 2. V51n-conibination'withltheboathavingthe downwardly-curved elbow G Hya-pivoted'suction tubefhavingfa telescopic connectionjwith `the 1latter. A

3. `In combination with a` boat having a downwardly-ouwed pipe G, agcurved pipe IH 4fitting againstfthe end of pipe Grandvadapted toturn about avertical axisfand a suction tube adapted to slide Vinto and out o f =.the mouth ofthepipe p 4. In combination with a boat-:having a downwardly-curved ftiXed :pipe SG, a cur-ved Pi-pGH lined :to ipipe ie and :proviaeawith a lstep `or `bearing Jr, the vbrackets-1111 L,sec.ured

nnb V,or bodyport-ion tas shown 1n `Fig. 3.` Diskorplate u is open at the center, and is yprovided with alateral ange a: on the Areary face {Wigs-3,5 and 6) which tits the -e'survediw under face'ofthe-mouth piece-R. The cutteriV isfurlther providedwith-'a grate'or grid which`y is iformed by aseries ofbars V bolted or ri-v f eted at one lend to the-disk wand at 'the opposite end to the 1tiared end of the -hub or L body 75,-as clearlylshown in Figs. Sand =7.

V"Keyed upon the hub t is -a casting W havingtwolaterally-extending arms yy designed to areceivel suitable `cutter actuating rods, ropes, or cables, X X, which pass lfrom the ends ofsaid `ar.m's,--to which vthey are sey sheaves Y Y-carried'in an .upward exten-sion otfthe `casting R as shown in FigsB and These ropes, chains or cables pass from'the" shea-ves up toa `pair-of rocker-arms Z r'Z,- v `I `i gs.`1, 3 and 4,-wh'ich are journaled li-n a lbracket z projecting from abedframe orsup.

port A mounted upon the iadder. -lMotion fis imparted tothe oscillating rocker arms "Z by means of the pitmen B which are secured vvits end fitted 'to slide therein;

1 to the-boat, andcarrying aring orlband Kto 3 encircle-the upperrendofjpipe H; anda suction pi-pehaving-a sliding connection with the pipe H. Y

y5. In combination-with aboat and thedewnz wardly-and outwardly curved ipipelsec'tion H, a suction `pipe having a-cur-ved endQ Ztos'lide within the pipe =H, jaffshafft M journaled in a bracket on Athe pipe "H, andarmsaQ-extending l :from saidshaft lto the suction pipe.r

6. `I-n combination with a lboa`t the double 1I cur-ved pipe sectionsfGH; ailad'derprovided with asuction-pipe; and a' pivoty-conc'entric with the curvature-of the-pipe section that 'receivesthe-suction pipe,-upon which the :ladder is mounted. Y

`7. iIn combination with a boat having the curved pipe section II; =a suctionpipefha-ving a :ladder upon which the suction,pipe-iscarrie'd; `and a'fpivot on -t-hepipesec'tion Hupon which the-iladder Aand suction pi-pe'swinlg.

8. @In combination with the ladder andthe oscillating cutter, the rocker arms,- zthefcon-` necting cables, and an engine. 4

9. In combination with the suction pipe having the mouth piece or casting R, the sleeve S in the latter, the cutter shaft T carried by the sleeve, the cutter mounted upon the shaft, and means for actuating the cutter.

10. In combination with the suction pipe, the cutter herein described comprising the following elements,-a shaft; a hub t, having the lateral arms y; a disk u; cutting blades