US102049A

US102049A - scanlan

Info

Publication number: US102049A
Authority: US
Publication date: 1870-04-19
Anticipated expiration: 1887-04-19

Description

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YLetters Patent No. 102,049, dated April 1i), 1870.

4I,- Guannes A. SGAXLAN, oi'v Charleston,4 in the district ot Charleston' and. State of South Carolina, lhave linvented a new and useful Dredging Apparatus, winch is described as follows: l

Nata-re l and Objects.

My aplnn'atus is designed `for the recovery'of lost i articles irom. the Vbeds of rivers, &e.., for gathering oysters, removing .phosphate deposits and obstruc-v tions, and` other similar uses. It consist-s in a conI `plete. l'orm ot'a'pairfot' piroted toothed jaws or rakes, forming, when closed together, a basket; vanal-cned frame `for the attaelnnent olfsaid jaws, provided centrally with a. tubular stem or standard, by which to raise and'lower it; a rod sldingwit-hin said tubular siem, by which toeuatuate the rakes; 'and slotted arms or-lerers on the rakes`,\tbr the attachment ol' said rod, and is to vary in-si'Ae,anibe adaptcd'tin operation by either hand or machinery, as required.

, General Description. In the arclnnpanying drawings- Figure -l represents an elevation, and Figure 2,' a perspective View of :ui-illustrative foim oi' my apparatus adapted liuhand use.

. 4Figures ,Il and .4, respectively, a perspective view and .an eleration'oi' the apparatus u s adapted for heavy work, and liuuperation by machinery.

Figs. 2 and 3 represent' the'po'sition of the parts in n'ther closed condition. A y Similarv letters-ol' reference indicate like parts in the-open conditionol'tlieiaws, and 1 and '4, the same.

AAin .the drawings representa pair of jaws or "lakes oll suitable forniv :rml-material, and adapted to form, when broughttogether, a basket or receptacle ot' proper capacity.v I

B represents an arched frame, n'daptiul ibrthe at taelnnent to its extremities, by hiuge-joints of the I ra'kes A, being ol single thickness, as represented in iigs. l and :3, orv -bilfnrcntljih so :is v,to atilnil more laten!! support, as represented in lig. as required.

U represents a tubular stem or standard, attachedeentrally to the l'ranw l, l'or raising,.lowering, and

. holding the rakes.

l) representan roll, igen-king within the'l'ubular stem G, l'or opening and closing the rakes.

E E npresent. rigid :irplsor levels, provided ou the "innerA sides of 'lhe lakes l'or thealtaelnnergt oi'the a dredgingapparatus ofthe description set tortlr, the

y 'represents a reeessip 'the lower end ol' the rodn' n', slots in the arms E for the receptionol` said plu,whieh iin-ms thealtaelnnent of the wd.v

' the same when t-bevmkes are represented in rigs. 1 and 2, or, for heavier work, be connected, in use, by chains or ropes l" G, to suitable machinery for operating,r them. 1n the former ease, at least, where it is very convenient, I propose apply-` ing to lthe stem, at its upper enda clamp4screw, H'f, or its equivalent, by which to hold, through. the rovi l), the rakes' in their open and closed positions.

Said'rod and stem will. bot-h usually be of metal.. 1n large apparatus, such as represented in figs. 7i and 4, the latter may be made of wood, as indicated;

and for hand-lakes, such as represented in figs. l and i 2, gas-pipe may be employed to goed advantage to form said part. 'l

longitudinal groove ouothcr means for guiding the rod may render'the tubular forlnofstem unneces-- sary. g v

One or apau of the arms or levers E may be employed on each rake, as required, and, when necessary,'the same may be strengthened by braces r, as

represented in figs. 3 and 4. v

For a pair on each rake,A the rod Dy will, of course, be bii'urcatd at itsl lower end, as 'represented The rakesiA are of variable construction. I prefer to construct them for hand-rakes ofthe simple form represented. vFor larger apparatus, the heads u may beextended and grated, and, i.: addition to the usual teeth t, supplementary ones, "s at `the ends, closing brought together, may be employed to assist in retaining the load, as represente( Fordredgiug .bedded formations which require to ,be broken' from .theI bottom, the 'teeth will be made. ot' steel and chisel-shaped, so as -to bear the requisite.l thrust into the mass to disengage it. The weight ol' the stem, actuating-rod, chainmze., above the bas ket, enable. great forccto be applied. to it for this and similar purposes.

Claims.

I claim a's newpair ot' pivotcd rakes, A A, a flame, B, l'orithe attachment ol' said rakes, provided with a stem or standf ard, C, a rod, D, for working the lakes, and :arms or 1evers, E, on the rakes,-for the attachment of said rod, substantially as herein set forth, for the purpose# shown,

P3, -Infthedciwrihcd combination, with-the rakes A,

levers E, frame B, stem or standard C, and. rod 1), ol'

clampfsen-w il, -or its equivalent, for the purposev smavl `easement.

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