US1383913A - Excavating apparatus - Google Patents

Description

P. E. DUTCHER.

EXCAVATING APPARATUS.

APPLICATION FILED Nov.2'a, |919.

mama July 5, @2L

4 SHEETS-SHEET l.

MWI/29mm P. E. DUTCHER. ExcAvAnNG APPARATUS.

APPLICATION FILED NOV-28. 1919- '1938,91 3 Patented July 5, 1921.,

4 SHEETS-SHEET 2.

P. E. DUTCHER.

EXCAVATING APPARATUS.

APPLmAIoN FILED N0v.28,1919.

LBSS l 3, Patented July 59 192k 4 SHEETS-SHEET 3.

P. E. DUTCHER.

EXCAVATING APPARATUS.

APPLICATION FELED NOV. 28, 19l9.

Patented July 5, 192i.

4 SHEETS-SHEET 4.

V f V EXCAVATING 1,383,913. Specification of To all whom t may concern: v

' Be it known that l, PIERPONT E. DUTGHER, a citizen of the United States, and resident of Upper Montclair, in the county of Essex and State of New Jersey, have invented a new and useful Improvement in Excavatingy Apparatus, of which the following is a speciiication.

. This invention relates to an excavating apparatus and has for its object t0 provide an apparatus having a bucket which may be controlled and operated by meansy of lines manipulated from'one side of the place desired vto be excavatedV and between'predetermined points.

Another object is to provide means operated at the sideof the excavation for con- -trollingthe position andV movement of the bucket.

A still further obj ect is to provide certain improvements in the form, construction and arrangement of the parts, whereby the above named and other objects may be effectively attained.

A Vpractical embodiment of my invention is represented in the accompanying drawinO-s, in whichy tl1`igure 1 represents in plan a view of my improved apparatus showing the'bucket, the lines attached thereto, the meansV by which the lines are controlled and operated and the means for supporting and guiding the lines and bucket.

Fig.Y 2 represents in side elevation, on an enlarged scale, a bucket, its lines and mech anism carried by the bucket in the position it will assumeV while being dragged with its load, also-showing in dotted outlines, the position the mechanism will assume when the bucket is being hauled back.

Fig. 3 represents a longitudinal central section of the bucket, with its lines and mechanism .in a position for digging.

Fig. 4 represents a side elevation of the bucket in the position it will assume when dumping. y

Fig. 5 represents a plan view, on a still larger scale, of the bucket actuating mechanism, and a portion of the lines connected thereto;

Fig. 6 represents a side elevation ofthe same. Y

Fig. 7 represents a similar view with the parts in another position."

Fig. 8 represents a similar view with the partsin still another position.

APPARATUS.

Letters Patent. Y Patented July 5, 1921.

Application filed November 28, 1919. Serial No. 341,035.

Fig. 9 represents a vertical section taken in the plane of the line IX--IX of Fig. *7, looking in the direction of the arrows, and

Fig. 10 represents a vertical section taken in the plane of the line X-X of Fig. 8', looking in thedirection of the arrows. i

To set up the apparatus at the place to be excavated, I provide anchorages denoted by 1, 2 at one side and an engine 3 having two winding drums 4, 5 at the other side of the proposed excavation. The engine 3 may be of any well known and approved typehavingmeans by which the two drums may bef`fcontrolled and operated. Between the anchorages 1, 2 there is stretched'a line 6 upon which a guide pulley block 7 is supported and Varranged to travel. This pulley block 7 is held in its position on the line 6 by means of afrope 8, one end of which is permanently attached at 9 to the pulley block, and the free end removably secured to the anchorage 2.

A bucket 10 is provided with a drag line 11 and a haul-back line 12. The drag line 11 is arranged to be carried forwardly and wound directly on the drumk 4 of thev engine, while the haul-back line 12 is carried rearwardly through the pulley kblock 7, pulley 13 on the anchorage 1 and thence forwardly through supporting pulleys 14 mounted on poles15 andaround a guide 16 to thedrum' 5. It will, of course, be understood that the drums 4, 5 may be so connected that they may be driven either together or separately, so that one Vline may be tightened and the other slackened or both tightened or slacl.- ened as theV case may require.

The drag line 11 is connected with a digging bail 17, the ends of which are secured to ears 18 on the bucket. The haul-back line 12 is connected to the bucket by a compensating line 19, one endof which is permanentlyv secured to the bucket at 20 and the other end developed into a bail 21, the ends of which are fastened to the front end of the bucket at 22. rThis bail 21 is provided with a spreader 23 to prevent it from chafing on the bucket.Y The compensating line 19 passes from the bail 21 around a pulley 24 in the end vof the haul back-line 12, forwardly to a pulley 25 carried by a bracket 26 extending rearwardly from an actuating mechanism, to be hereinafter described, thence rearwardly and secured to the bucket at 20.

The actuating mechanism comprises a carriage 28, a pair of latches 29 fixed on a 36 ofthe beam'.

pin 3C, journaled in the carriage and connected by a bridge 31 which is secured'to the latches by screwsj 32. The latches are ar-V ranged upon opposite sides of Ythe carriage and .normally rest in recesses 33 in the sides of the carriage. i w Y Av curved Ibeam 34 is arranged on the bucket in position toV form vaV track upon'V which the carriage 28 is held in slidable en- 'agement by means of inwardly disposed ngers 35 whichv engage the upper flanges Stops 37 are-xed upon-opposite sides of i the I-beam 34 so as to `be engagedV by thev Y lifted out of thepath of the stops-37 byy means of a cam 38 mounted on a shaft-39l latches 29-when at rest in the recesses;33,as shownin Figs. 3, 7 and 9. Thelatches are journaledin the carriage 28, which shaft and cam` Vare arranged to be rotated by aY trigger 40.--pivotedf 'on--abracket 41 fast 'on the I-l beam, .which trigger is adapted-to operai1 tively engage each tooth 4210i a stai' whe/ei"y 43 pinned on one end of the shaft'f39', when the` carriage28 'movesto the left, Fig'.- 8. As i the shaft 139 with its 'cani 38 is rotated, the cam willibe vcaused to pass througha` hole 44 in the carriagey and engage the bridge 31 and sozactuate the latches. Thete'eth on the star vwheel are soAV disposed that each time the trigger moves a tooth, the. shaft 39Y will be rotated a quarter of aV revolution, and the shape `oit the cam isfsuch that the-latches will be raised and lowered'alternately with each movement ofthe" carriage in the same direction or, in other words,will beraisedon veaehsecond'movement of the'carriage to '1 the left, Fig; 8. When the carriage 28` moves pivot so as to permit thef carriage to pass,

vto the right, Figs. 2 and"3,the,star wheel will strikev Vthe triggerv and swing it on its the weighted end45 on thel trigger serving riage. f

toreturnit toits nonnalposition.' i

The carriage 28 is controlled and operated hauled back to a place where it is desired to curved I- beam 'isV shown in dotted lines iny start the excavation. In hauling back the bucket, the engine is caused to wind the line 12 on the drum 5 andthe drum 4 permitted tounwind, which leaves the line 11' slack. The tensionon the line 12, to haul the bucket rearwardly is imparted through. the pulley 24. to the compensating line 19, pulley 25v of the 'carriage'28and the bail 21. The position the xcarriage 28 will assume onk the Fig. 2. When 'the bucket has been hauled back to the desiredl place and is ready to be brought toa digging position, the drum 4is rotatedto wind the line 11,'while the drum Y 5 is allowedto unwind to slacken the line 12.

In tightening the line '11, the connection 46 will cause the carriage 28 to travel forwardly on the track, in which movement,

one of the teeth 42 of the star wheel43 will engage the trigger '40,'which in turn will rock the shaft 39 so that the cam 38. will kallow the latches'torest'inthe Vrecesses 33 of the carriage, thereby placing the `latches position to be operativelyv engagedjby the stops 37, andhold the carriagein position on thetrack. Asi thev .tension on the. drag line 11,' digging bail 17 and connection 46, is" continued, and the haul-backV line 12 slackened, the bucket*k will be .causedto tilt Y. forwardly tothe diggingfposition', shown in .Y

Fig. 3, in which position theline 11, digging S5Y l bail 17 and connection 4,6Lhol'dthe bucket throughout the digging ',of'peration."vr ,When the digging 'operation has" been completed andit isfdesired to haul the Acontents of; the i Y bucket toward ythe sideof the excavatiomjthe drag line 11l is slackened andthe hau'lf-bia@,kr` line 12 tightened'i'suiiiciently 'to drawwthe,y

carriagerearwardly on' the track yso thatth'e star wheel 43 will again pass overtrigger140,-` whereuponthe-drag linefll'istightened and the 'f haul-backv line 12 Yslackened so' that the carriagejwill returniover. the trigger 40 and seti the cam 38 so thatl kthe latches will :be

lifted toV clear the .stops 37,V andV the carriageY l allowed Vto vassume "a position onfthe track, as.. clearly shown in 'F1g.f2."- In this position,-

the load maybe'dragged to the'side of the excavation and there dumped. To dump the contents ofthe bucket, 'the :line 11 is 'pel-V mitted to'v slackenand thedruin v5 isrotated v to wind the line 12 thereon,fthus slidingthe carriage rearwardly until it has just passed the crest of the'I-beam 34. ith. the partsy in this position, tension is exerted on the line Y 11and the. connection 46 tips the bucketA up into dumping positions. As' the"bucket starts to tip over its ydigging edge', Athe line 12 Ais allowedV to slip a little by sli htlycreiio i leasing the brake on thedrum 5. f fterthe y contents ofV the bucket'have been dumped, the -line v11 may be slackened and the bucket allowed to return, by gravity, tothe haulback position with Vthe carriage in the position shown in dotted lines in i bucket may be hauled back by the line. 12 and the cycle of yoperations repeated as above-described.. Y

fig. awhenithe It. is to be emphasized. thatl the advan-V tagesV obtained by this apparatus. are" distinctive in that the bucket used picks up its Y' Y load andcarries it to a place tobe dumped 3.

that the bucketis not suspended or carried;-

ythat the manipulation. of the bucket is,con

trolledand operatedentirelyV from theside of the excavation, by' alternating'tensionon theV diggingV and haul-back linesv without placing tension on the opposing line, thereby materially saving Wear and tear on the apparatus, due to opposite forces being applied to the lines; that the bucket Will assume digging, carrying and haul-back posltions with operating tension applied to one line at a time; and that the dumping position only is assumed With the tension applied to both lines.

It is obvious that various changes may be resorted to in the form, construction and arrangement of the several parts and in the method of operation Without departing from the spirit and scope of my invention; and hence I do not Wish to be limited to the details herein shown and described except as they may be set forth in the claims.

What I claim is:

1. An excavating apparatus including, a bucket adapted to operate on the ground, a line circuit secured to said bucket, means for actuating the line circuit to cause the bucket to dig and then carry its load, and means for causing the bucket to maintain a regular digging angle with tension on the drag line only irrespective oi the amount of load in the bucket.

2. An excavating apparatus including, a bucket adapted to operate on the ground, a line circuit secured to said bucket, means for actuating the line circuit to cause the bucket to dig, carry its load and to dump the load, and means for causing the bucket to maintain a regular digging angle With tension on the drag line onlyv irrespective of the amount of load in the bucket.

3. VAn excavating apparatus-including, a bucket adapted to operate on the ground, a line circuit secured t0 said bucket, means for actuating the line circuit to cause the bucket to dig, carry its load, dump the load, and to haul back, and means for causing the bucket to maintain a regular digging angle with tension on the drag line only irrespective of the amount of load in the bucket.

4. An excavating apparatus including, a bucket having a drag line and a haul-back line, means slidably mounted on said bucket and connecting said drag and haul-back lines, and means for operating the drag and haul-back lines to move said slidable means for controlling the position and movement of the bucket.

5. An excavating apparatus including, a bucket having a drag line and a haul-back line, means slidably mounted on said bucket and connecting said drag and haul-back lines, means fast on the bucket adapted to engage said slidable means for holding it in a fixed relative position, and means for operating the drag and haul-back lines to move said slidable means for controlling the position and movement of the bucket.

. 6. An excavating apparatus including, a

bucket having a drag line and a haul-back line, means slidably mounted on said bucket and connecting said drag and haul-back lines, a stop on the bucket, a latch carried by said slidable means in position to engage said stop to hold the means in a fixed relative position, and means for operating the drag and haul-back lines to move the slidable means for controlling the position and movement of the bucket.

7. An excavating apparatus including, a bucket having a drag line and a haul-back line, means slidably mounted on said bucket and connecting said drag andI haul-back lines, a stop on the bucket, a latch carried by said slidable means in position to engage said stop to hold the means in a fixed relative position, means for moving said latch to throw it out of contact With the stop, and means for operating the drag and haul-back lines to move the slidable means for controlling the position and movement of the bucket.

8. An excavating apparatus including, a bucket having a drag line and a haul-back line, means slidably mounted on said bucket and connecting said drag and haul-back lines, a stop on the bucket, a latch carried by said slidable means in position to engage said stop to hold the means in a fixed relative position, means Jfor moving said latch to throW it out of contact With the stop,

means on the bucket adapted to engage said.y

latch moving means for actuating it, and

means for operating the drag and haulback lines to move the slidable means for controlling the position and movement of the bucket.

9. An excavating apparatus including, a bucket having a bottom, a drag and a haulback line connected to said bucket, and means for operating said lines so as to cause the bucket to assume a digging or load carrying position While permitting slackness in the haul-back line.

10. An excavating apparatus including, a bucket having a bottom, a drag and a haulback line connected to said bucket, and means for operating said lines so as to cause the bucket to assume digging, carrying, and haul-back positions with tension on only one of said lines at a time.

11. An excavating apparatus including, a bucket having a bottom, a drag and a haulback line connected to said bucket, and means for operating said lines so as to cause the bucket to assume digging, carrying, haulback positions with tension on only one of said lines at a time, and to assume a haulpack position Without tension on the drag In testimony that I claim the :foregoing as my invention I have signed my name this tWenty-ifth day of November 1919.

PIERPONT E. DUTCHER.

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