US1826920A - Excavating shovel - Google Patents

Description

act. 13, 1931. J, BRENDUN 1,826,920

ExcAvA'rING SHOVEL Filed May 19, 1930 2 Sheets-Sheet 1 NVENTO-R BY 4094 f- ATTORNEY Q Oct. 13, 1931. BRENDLlN 1,826,920

EXCAVAT ING S HOVEL Filed May 19, 1930 2 Sheets-Sheet 2 INVENTOR ATTORNEY.

Patented Oct. 13, 1931 UNITED {STATES ,HE MANJ. IBRENDLIN, or NEW YORK, N. Y., ASSIGNOR TO ran mmwm conning r:

PATENT oF ncE.

OF NEW YORK, N. Y.

' EXGAVATING SHOVEL Application filed May 19, 1930. Serial No. 458,580.

This invention relates generally to excavating shovels, and the improvements are directed to a novel combined shackle and sheave frame for use in connection with drag line 5 buckets.

As will presently appear, it is proposed to provide a device of the above mentioned character adapted to support a sheave, through the intermediary of a sheave frame,

the latter being cast integrally with said shackle,'said shackle being further adapted to support a hoisting bridle formed from a single piece of chain.

Those skilled in the art to which this invenqfi tionappertains are aware that at the present time it is universally the practice to pivotally connect'a hoisting bridle at points disposed rcarwardlv of the centre of gravity of a drag line bucket, theupper ends of the two 90 members comprising the bridle being attached to either a shackle or a sheave block. W'hen secured to shackles, a sheave block is also made fast to the former, and such an arrangement necessitates making forged shackles, cutting both bridlesthe same length and finally welding the links at either end, the two upper links engaging the aforesaid shackles.

' It'is therefore the primary object of the present invention to provide a hoisting bridle formed from a single piece of chain and to combinethe same with an integrally formed shackle and sheave frame','whereby a medial link of said bridle is housed and securely maintained in proper assembled relation within arecess formed in said shackle.

Another feature of the inventionis the provision of a device of the character aforesaid, which tends to simplify the construction of a drag line bucket and which facilitates the operation thereof.

With these objects in View, together with others which will appear as the description proceeds, the invention resides in the novel formation, combination, and arrangement of parts, all as will be described more fully hereinafter, illustrated in the-drawings, and particularly pointed out in theclaims. In said drawings: 7 f 1 Figure 1 is a side elevation of a drag line bucket embodying my invention.

Fig. 2 is an elevation of the ,combined; shackle and sheave frame, supporting a sheave and having a link of a hoisting bridle positioned within a recess formed in said shackle.

Fig. 3 is a front elevation of the same. Fig. 4 is a sectional view taken {on the line 4-4 of Fig. 2,a portion of ahoisting bridle being also shown. 7 Fig. 5 is a fragmentary plan vieyv ofsaid shackle as seen at the left ofFig. 1. 2: I l Fig. 6 is a side elevation of said shackle but introducing a pivot element forisupporting a sheave, saidelement beingpositione within the fork of said shackle. I p

Fig. 7 is a front elevation thereof. Fig. 8 is a rear elevation of a slightly modified form of shackle wherein thejpivot is mounted exteriorly of the fork of the shackle, the recess or chain-holder portion being shaped to receive a horizontal link of the hoisting chain. f 1 r Fig. 9 is a side elevation of Fig. 8. Fig. 10 is a front elevation thereof. Fig. 11 is a sectional detail as viewed on the line l111 of Fig. 9. 1;

Referring now more in detail'to the accompanying drawings, wherein like characters of 7 reference denote similar parts throughout the several views, let'lO indicate generally a drag line bucket, having-the usual cutting edge 11 and lugs 12 arranged exteriorly of eachside of said bucket,-'said lugs being adapted to pivot-ally receivethe ends of a hoisting bridle 13 at a point-;disposed rearwardly. of the center of gravity of said bucket, as indicated at 14. The usual haul}- ing chains 15 extend from the frontyedgesof the sides of said bucket for connection with on e QSIQfiSihi U inspection of Figs. 2 and 3, it will be 0 rved that my improved device comprises 5 u 0 whielriswbifuroated at the i ere'of to form an integral frame 21 for the reception of said u 1 .be' suitably arranged in u n of a bolt 22, or the like, as clearly shown in Fig. 4. The upper portion of said frame is provided with apertured ears 23 to receive Mar am seq eheekie eed "sheave frame e! fiv -single piece 'of'chain ed. to serveas a heistin'gqbridle, and 6! this firrfingmnt'it no longerbeneeessh revide' two separate momentum welding operathe' hodylportion of said a. d chainrec'eiving pocket or recess 25, the walls of saidfrecess,

Yul :u i I r -iisr 2 of'said bfridle" is within flitowliposition {indicated in 'itpeiltrres 27j-and'28'in said shackle, whereupon saiehliifdlsis 'secnrelyanchored in Wins emnt ermits facile iii ef the oresaidpjartsi v shm'vqjn Figs. 6 and 'l, the mar-as shnilarjyto that just de {that th'efehdin receiving recess 29, v .1. alesearers and the bolt 31,,e11 function as aforesaid. In this particular instance, l me rfiwhe sewer -portion of the shackle seme ters-ea indicated at 33, a d

aligned 'a'p'ertures forthe recaption of bolt 34 carrying the member 35, the hhnsihg'the sheave 18';

"mshaeklet", shown'in'Figs'. s to 11 in- I! e isfpovided'with apertured ears '37 one e s'eruie hoistin line" 24, the meaunsem aeee vmg e et 39, funcin the salheminner as that set forth e -1"oris"o'f saidfra'me bym n one end of a hoisting lirwei-t asindicated in i iaavieuhy eewerm the ed tien of my,

- .in'te'rfit with "the; i .e? of said ho sting bridle 'lg. "-In view of flflibwthr' ierlnsjwfih theeroeption that D 'wi's recesssmes'indieated at 40,

sets forth the prevvith a shovel, of a one-piece hoistin bridle pivotally attached to said shovel,

auling means secured to the front of said shovel, a shackle havin a recess adapted to receive a medial link 0% said bridle, a sheave carried by said shackle and a holding rope extending from the front of the shovel running over said sheave to the hauling means.

2. In a drag line bucket, the combination with a shovel, of acne-piece hoistin bridle pivotally attached to said shovel, means secured to the front of said shovel, a shackle havin a recess adapted to receive a medial link 0 said bridle, means for maintaining said link within said recess a sheave carried by said shackle and a holding rope extending from the front of the shovel rune ningover said sheave to the haullgi means. ination 3. In a drag line bucket, the co with a shovel, of a one-piece hoistin bridle pivotally attached to said shovel, auling means secured to the front of said shovel, a shackle having a recess adapted to receive a mediallink of said bridle, said recess presenting angular walls, a sheave pivoted to said shackle and a holding rope extending from the front of the shovel running over said sheave-to the haulin means. 7

. 4. 'A shackle havin a recess ada ted to receive a medial link ofa hoisting bri said shackle presenting an integral frame to house asheave. i I

5. A shackle havin a recess adapted to receive a medial link 0 a hoistin bridle and presentinga forked portion for t e reception of a pivoted sheave-supporting member.

6. A shackle having a pocket provided with. recesses for the reception of a horizontal medial link of a hoisting bridle said shackle resenting a forked portion adapted to be em raced by a pivoted sheave-supporting member, a portion of said sheave projecting within the forked ortion.

, I" HER J. BRENDLIN;

the invention it will

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