US1050838A

US1050838A - Excavating-bucket.

Info

Publication number: US1050838A
Application number: US58361110A
Authority: US
Inventors: George W King; Charles B King; Harvey T Gracely; Herbert E Roush
Original assignee: Marion Steam Shovel Co
Current assignee: Marion Steam Shovel Co
Priority date: 1910-09-24
Filing date: 1910-09-24
Publication date: 1913-01-21
Anticipated expiration: 1930-01-21

Description

G. W. KING, C. B. KING, HfT. GRACELY & H. E. ROUSH. BXGAVATING BUCKET.

. APPLICATION FILED SEPT. 24, 1910.

1 ,050,838. Patented Jan. 21,1913.

2 SHEETS-SHEET l.

abbot/nw G. W. KING, C. B. KING, H. T.v GRAGELY & H. E. ROUGH.

EXGAVATING BUCKET.

APPLICATION FILED SEPT.24,1910. 1,050,838. Patented t12111.21, 1913.

2 SHEETS-SHEET y2.

UNITED EA-TENT OFFICE.

GEORGE W. KIC-CHARLES B. KING, HARVEY T. GRACELY, AND HERBERT E. ROUSH,

0F MARION, OHIQ-,ASSIGNORS T0 THE MARION STEAM SHOVEL COMPANY, Oil?v MARION, OHIO, A CORPORATION OF OHIO.

EXCAVATING-BUCKET.

Specification of Letters Patent.

Patented J an. 21, 1913.

To all fwmm it may concern.'

Be it known that we, GEORGE W. KING, CHARLES B. Kino, HARVEY T. GRACELY, and HERBERT E. Rouen, citizens of the United States. residing at Marion, 4in the county of Marion and State of Ohio, have invented certain new and useful Improvements in EXcavating-Buckets, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to excavating buckcts, and more particularly to that class of excavating buckets known as drag line buckcts. Excavating buckets of t-hls type are filled by being dragged over the material or bank to be excavated by means of a drag line and are then hoisted by means of a hoisting rope which' is usually connected to the bucket at one side of the center of gravity by means of a bail. A suitable connection between the bail and the drag line enables the bucket to be maintainedin such a position as to retain the load within the same during the hoisting operation by means of a pull on the drag line. In many of the buckets of this type now in common use a stron p ull on the drag line must be maintains' during the hoisting operation, and, in this manner, a heavy strain is imposed upon the drag line and its holding devices, causing these holding or friction devices to quickly' wear out and necessitating their frequent renewal.

The object of vthis invention is to provide an excavating bucket of this' type which can be supported in apqsition 'to retain the Inaterial therein durin lthe holstiug operation by a very light pul on the drag line ,thus eliminating both the annoyance and the ekpense due to the wearing out and consequent renewal of friction devices' and further to provide such a bucket which will simple in its construct-ion and positive in its 'oper'- ation, thereby enabling it tured at a small initial cost and to be maintained in operative condition with little or no trouble and expense.

It is a further object of the invention to provide the bucket with a four-point support, the points ot connection of which with the bucket are adjustable to permit the bucket to be supported at differentinclinations to the horizontal during the hoist-ing to be manufac-l operation; and also ,to so arrange the supporting members that during the filling operation these supporting members will exert a downward pressure upon the forward edge of the'bucket, causing the same to bite into the material, thus enabling the bucket to be readily filled.

In the accompanyingdrawings, Figure l is a side elevation of a bucket, showing, in full lines` the bucket in filling position and showing, in` dotted lines, the bucket in hoisting position; Fig. 2 is a side elevation ot the bucket. showing thesame in dumping position; and Fig. 3 is a front elevation of the bucket in illing position.

In these drawings we have illustrated one embodiment of the invention and have shown the same as applied to an excavating bucket 1 haxf'ing a Hat bottom and vertical side and rear walls. The front end ofthe bucket is open and

hauling ropes

2 and 3 are connected to the forward ends of the respective side walls, converge forwardly and are connected at their forward ends to a drag line 4. In the bucket ere shown the bottom terminates some di tance in the rear of the forward ends of the side walls and the lower forward corners of the side walls are cut away. The hauling ropes, being connected to the forward ends of the side walls beyond the forward end of the bottom, will tend to depress the forward edge of the bottom and cause the same to bite into the material which is to be removed. This bucket is, however, only one of a number of, ty es which can be employed in connection with the invention and it is not to be understood that the invention is in any sense limited to this particular type of bucket.

Two supporting members 5 and 6, respectively, are pivotally connected to the bucket in the front and rear of its center ot gravity, respectively. In the present instance these supporting members are in the form of bails and have theirarms pivotally connected to the vertical side walls of the bucket, the arms of the bail or supporting member 5 being connected to the-side walls of thev bucket in the rearof the center of gravity of the bucket and the arms of the ball 6 being' connected to the side Walls of the" bucket in front of its center of gravity. Ihe Supporting Illlloe'rv or bail 5 1s connected at its upper end with a hoisting rope 7. The upper. or crosswise member 8 of this bail is preferably pivotally connectedt the side members or arms thereof and has rigidly secured thereto an upwardly extending member 9 which is connected to the ends of the crosswise member 8 and braced against the same by inclined. members or bars 10. The hoisting rope 7 is connected. to the vertical member 9 in'any suitable manner, the upper end of t-his member preferably extending above the upper ends ofthe inclined brace bars,10 to enable the rope to be readily secured thereto.

Suitable means are' provided for operatively connecting the two supporting members 5 and 6 one to the other and this connecting means mayibe so controlled asto maintain the two supporting members in such relative positions as to support the bucket. in its normal position, z'. e., in a `position to retainthe material within the same, or to allow the two supporting members to so alter their positions as to permit` the bucket to move about `its point or pivotal connection tov one of these-members and thus ldischarge' the load. This connection preferably comprises a lever 11 arranged after the manner of a toggle lever and pivotally connected at one endI to the upper transverse portion ofthe bail or supporting member 6, which bail is somewhat longer than its companion bail 5. The lever 11 is pivotally connected at a point between its ends with the crosswise memberl 8 of the rear bail 5. The lower end of the lever which projects beyond the point of connection to the bail has connected thereto a dumping rope 12 which passes. through a suitable guide 13 on'the forward end of the bucket and is preferably connected with the dragline.

When the bucket is being dragged along the bank by means of the drag -line the weight of the supporting members `will be thrown toward the front of the bucket and will cause the forward edge of the bottom to bite into the material and enablel the bucket to be more readily filled. This is particularly true when thebucketl is being dragged down the side of a bank to ill the same as is frequently done with buckets of this character. As the bucket is filled and is bein l elevated by'means of the hoisting rope a su cient tension will be'maintained on the dragfline and dumping rope 12 to hold the lower end; of theglever 11 in its foremost position. When in this position the points of connection ofthe lever to the two Isupportin members will be slightly out of line withv t e.- hoisting` rope and will not lock.

pull. The arrangement of the parts, how

ever, permits the lever to be ,moved so close to the locking position that a very slight pull on -the dumping rope l2 will maintain the same in position. When the lever is in this position, which is its normal position, the upper ends of the two supporting members lare' both connected with the hoisting rope and this rope is connected with the bucket at four points, thus forming a firm supfport therefor. The position of the bucket when the levers are operatively connected in this manner may be varied by altering the points at which the bails or supporting members are connected to the bucket, and, to this end, the side walls are provided on both sides of the center of gravity of the bucket with a series of holes 14 through' any of which the connecting bolts for the bails may be passed. When the bucket has been yelevated and transferred to the point where it is desired to dump the material the drag line 4 and dumping rope 12 are slacked off, thus releasing the lever 11 and permitting the forward supporting member or bail 6 to move down- Ward under the pull exerted thereon by the load.` The rear supporting member 5 will not materially alter its position other than it will be moved into a vertical position. Consequently, the' bucket will move about its point of pivotal connection to the bail 5 and the forward or open end thereof will drop downward and cause the contents thereof to be discharged. When the bucket has reached a substantially vertical position ,the forward bail 6 will come into contact with the lower end of the rear bail This contact will be more or less violent, as the downward movement of the bucket will be rapid. Consequently, the bucket will be jarred and the material will be loosened from the walls and bottom thereof so that all the material will be discharged, no appreciable quantity thereof adhering to the sides or bottom of the bucket. To fill thel bucket it is permitted to move toward the ground in its dumping position, as shown in Fig. 2, and, as the forward end of the bucket approaches the y ound or the material to be excavated, a pu l is exerted on the drag line to cause the supporting members to moye into their normal positionsland to dran7 the bucket forward over the ground. i

'While we have herein shown and described one particular form of our invention itwill be understood that this form is `chosen for the l"purpose of illustration only The forward movement of the lower end ,of

and the construct-ion and arrangement of `the several parts ofthe device can be 1na' said supportin lili bonuses terms hoisting rope, dumping rope, etc., are used 1n a broad sense, and, although ropes are usually employed to' accomplish the functions of these parts', it

will be obvious that any other devices which i will accomplish the desired'results would be the full equivalents of the ropes. We, therefore, wish it to be understood that we do not desire to be limited to the details of construction :shown and described, for obvious modifications will occur to a person skilled in the art.

Having thus fully described our invention, what we claim as new and desire to secure by Letters Patent, is

l. The combination, with a bucket, and a drag line therefo-r, of a supporting member for saidbucket, a hoist-ing rope connected with said bucket, a lever connection between said supporting member and said hoistingrope, and means for connecting said lever with said drag line, whereby the relative positions of said hoisting rope and member may be controlled by means of said drag line.

2. The combination, with a bucket, and a drag line therefor, of a bai for said bucket, a hoisting rope connected. with said bucket, a connection between said bail and said hoisting rope comprising a lever, and

va connection between. saidrlever `and said drag line, whereby therelative positions of said hoisting rope and said bail may be controlled by means of said drag line.

3. The combination, with-a bucket, and a drag line therefor, vof a bail for said bucket, a hoisting rope connected with said bucket, a lever connecting said bail with said hoisting rope, and a dumping rope connected with said lever to control the Arelative positions of said hoisting rope and said bail.

4. The combination, with a bucket, and a drag line therefor, of a bail for said bucket, ahoisting rope connected with said bucket, a lever connecting said bail with said hoisting rope, and a dumping rope connecting saidlever with said drag line, whereby, the relative positions of said bail and said hoisting rope may be controlled by means of said drag line.

5. The combination, witha bucket, and a drag line therefor, of a bail 'for said bucket, a hoisting rope connected with said bucket, a lever connected at one end with said bail and connected at a point between its ends with said "hoisting rope, and a dumping rope connected with the lever.

6. The combination, with a bucket, and a drag line therefor, of a bail for said bucket, a hoisting rope connected with said bucket, a lever connected at onev end with saidl bail and connected at a point between its ends with said hoisting rope, and a dumpother end of saidv ing rope connecting the other end of said lever with said drag line.

7. The combination, with an excavating bucket, and a drag line connected therewith, of two supporting members pivotally connected to said bucket at fixed points in the front and rear of the centerof gravity, respectively, a hoisting rope connected with one of said supporting members, an operable device connecting said supporting members, and a dumping line connected with said operable device and controlled by said dragr line for manipulating said operable device to permit said bucket to move about its pivotal connection to one of said supporting members.

8. The combination,.with a bucket, and a drag line therefor, of two supporting members connected with said bucket, a 'hoisting rope connected with one of said supporting members, a lever connecting said supporting members, and means cont-rolled by said drag line for manipulating said lever.

9. The combination. with a bucket, and a drag line therefor, ofv two supporting members connected with said bucket, a hoisting rope connected with one of said supporting members, a lever connectedfat one end to one. of said supporting members `and con nected at a point between'its ends with another of said support-ing members. and a controlling member connected with the other end of said lever.

l0. The combination. with a bucket, and a drag line therefor, of two supporting inembers connected with said bucket, a hoisting rope connected with one of said supporting members, a lever connected at one end to one of said supporting members and connected ata point between its ends with another of said support-ing members, and a dumping rope connecting the other end ot' said lever to said drag line.

1l. The combinationwith an excavating bucket, and 'means 'for Ifilling the same, of two supporting members pivotally connected to said bucket in the front and rear of its center ofgravity, respectively. a hoisting rope connected with one of'said supporting members, a lever connecting said supporting members one to 'the'othen and means for maintaining said lever in a position to cause said supporting members to support said bucket normally in a position to retain the material therein and for permitting said lever to change its position, thereby per mitting-said bucket to move about its pivotal connection to one of said supporting members.

l2. The combination, with an excavating bucket, and means for filling the same, of two supporting members pivotally connected to said bucket in the frontand rear of its center of gravity, respectively, a hoisting -rope connected with one of said supporting men'ibers, a lever connecting said supporting 1 bails connected thereto, one of said bails bemembers one to the other, and a dumping ing ot greater length than the other, a lever connecting the upper ends of said balls one rope connected with said lever.

I3. The combination, with an excavating bucket, and a drag line connected therewith, or' two supporting members pivotally connected to said bucket in the front and rear of its center of gravity, respectively, a hoisting rope connected with one of said supporting members, a lever connecting said supporting members one with the other, and a rope connecting said lever to said drag line, whereby the position of said bucket may be controlled by means oit said, drag line.

lil. The combination, with a bucket, ot two non-flexible bucket-supporting bails pivotally connected at liXed points to said bucket, a hoisting rope connected with one of said bails, an operative connection be'- tween said bails to cause said hoisting rope to exert an upward pull on both of them, a drag line connected to said bucket independently of said bails, and a dumping line connecting said drag line With said operative connection.

15.A The combination, with a bucket, of two bails pivotally connected thereto, a hoisting rope connected to one of said bails, a lever connecting said bails one to the other, a drag line connected to said bucket, and a connection between said drag line and said lever, whereby, the movement ot said lever may be controlled by means ot said drag line.

16. The combination, with a bucket, two

to the other, a hoisting rope connected bo one of said bails, and means ior controlling y the movement of said lever.

1T. rIhe'conibination, with a bucket, of two bails pivotally connected thereto in the front and rear of the center oi' gravity thereof, respectively, one ot said bails being of greater length than the other, a hoisting rope connected with the shorter bail, a lever pivotally connected at' its upper end to the longer bail and at a point between the same to the shorter bail, a drag line, and a dumping rope connected with said drag line and With said lever at a oint below its point or' connection to the s orter bail.

.18. The combination, with a bucket, of two bails, means for adjustably connecting said bails to said bucket, a hoisting rope connected with one of said bails. a lever connecting said bails one to the other, a drag line connected to said. bucket, and a dump ing,` rope connecting said lever with said dragline.

In testimony whereof, we affix our signatures in presence of two Witnesses.

GEORGE W'. KING. CHARLES B. KING. HARVEY T. GRACEL'Y. HERBERT E. ROUSH. lVitnesses I M. ,0. STOLL, J. H. KU'rsci-nnz.