US1487910A - Drag-line-bucket cleaner - Google Patents

Description

March 25, 192%. 1,487,910

E. L. BARTMESS DRAG LINE BUCKET CLEANER Filed May 16. 1923 2 Sheets-Sheet 1 WITNESSES I INYVENTOR El Bat/aimless,

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L ATTORNEYS March 25, 1924, 1,487,910

E. L. BARTMESS DRAG LINE BUCKET CLEANER Filed May 16. 1923 2 Sheets-Sheet 2 WITNESSES 11v KEN TOR E .L Barimess, MZM

-Qflw A TTOR N F YS Patented Mar. 25, 1924.

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ERNEST LEE BARTMESS, OF PEKIN', ILLINOIS.

DRAG-LINE-BUCKET CLEANER.

Application filed May 16, 1923.

resident of Pekin, in the county of Ta'zewell and State of Illinois, have invented certain new and useful Improvements in Drag- Line-Bucket Cleaners, of which the following is a specification.

This invention relates to drag line buckets and shovels, especially adapted for moving dirt.

An important object of the invention is to provide simple means whereby the dirt in the rear portion of a drag line bucket is loosened when the bucket is moved to its discharge position.

A further object is to provide a bucket of the character specified having positive means whereby air may enter the rear portion of the bucket and consequently prevent the formation of a vacuum as the dirt is discharged.

A further object is to provide a bucket cleaning and vacuum relieving member for shovels which is entirely automatic in operation, simple to install, and cheap to manufacture.

Other objects and advantages will be apparent during the course of the following description.

In the accompanying drawings forming a part of this application and in which like numerals are employed to designate like parts throughout the same,

Fig. 1 is a side elevation of a bucket equipped with the improved dirt cleaning and air inlet means, a bucket being shown in its dirt-receiving position,

Fig. 2 is a rear elevation of the bucket,

Fig. 3 is a perspective of a cleaning bar embodied in the invention,

Fig. 4 is a detail sectional View illustrating the means to slidably connect the cleaning bar to the bucket,

Fig. 5 is a side elevation of the drag line bucket equipped with the improved cleaning and air inlet means, the bucket being in its dumping position, and

Fig. 6 is a vertical transverse sectional view taken on line 66 of Fig. 1.

- In the drawings, wherein for the purpose of illustration is shown a preferred embodiment of the invention, the numeral 5 designates a drag line bucket having its forward end open for the reception of dirt and as usual, the forward end of the bucket Serial No. 639,432.

is provided with teeth 6 by means of which the dirt is loosened and guided into the bucket.

The drawings, and particularly Figs. 1 and 5, illustrate that the forward end of the bucket has connection with a pulling chain 8 by means of which the bucket may be drawn through dirt for loosening and" picking up the same. Also, the upper portion of the bucket has connection with a dump rope 10 which is trained about a dump sheave 11 and it will be seen tha when the pull on the dump rope 10 is released, the forward portion of the bucket will drop about the axis of the trunnions 12 in the usual manner so that the dirt confined within the bucket will be dumped.

In carrying out the invention, 1 provide a cleaning bar or scraper 14 and extend the same across the curved rear end wall of the bucket. The cleaning bar 14 is formed adjacent its ends with outwardly projecting arms 16 which pass through slots 17 and have connections with short cables 18. The cables 18 are in turn connected to the spreader 20 which overhangs the bucket and serves as a spacer for the hoist chains 22. The hoist chains 22 are connected to the casing 23 of the hoist sheave and it will be seen that the lower portions of the hoist chains 22 are connected to the trunnions 12 so that the chains will hold the rear portion of the bucket up when the forward portion is dropped.

As previously stated, when the pull on the dump rope 10 is released, the forward portion of the bucket will move downwardly about the axes of the trunnions 12 and since the chains 22 are taut, the spreaders 20 connected thereto will engage the arms 16 and move the cleaner bar 14 about the curved rear wall of the bucket.

That is to say, the spreader 20 is in the path of travel of the arm 12 so that when the bucket is tilted, the cleaner bar will positively be moved about the rear wall of the bucket for cleaning the same of dirt.

Furthermore, when the bucket is moved to its discharging position, air may enter by way of the slot 17 and prevent the formation of a vacuum. The movement of the arms 16 in the slot 17 positively prevents the slots from getting clogged by mud so that under no conditions could a vacuum be created which would of course prevent the dirt from being eficiently discharged.

Figs. 1, 3 and 4L illustrate that the cleaner bar 14 is held closely in contact with the inner side of the bucket by means of rollers 30 which are carried by the arms 16 and contact with the outer wall of the bucket.

The inventive idea involved in this application may be carried out equally as well with a stiff bail or a chain bail and the operation is, entirely automatic. 1

Since the dumping cable governs the carrying position of the bucket, it is only necessary to adjust the short cables from the cleaner bar to the spreader to suit this position.

When loading the bucket, if the hoisting cable is tight, the cleaner will be in position, and if not, dirt coming up the curved back wall will force the cleaner up so that it will be engaged by the spreader when the bucket is tilted.

When the bucket is tilted, the cleaner bar ispositively moved rcarwardly, owing to the weight of the bucket and the contents. The cleaner bar not only scrapes the dirt from the back wall of the cleaner, but also gives what might be said to be an initial shove to the dirt so that it is efficiently discharged.

Having thus described the invention, what spreader member overhanging the bucket and arranged in the path of travel of said arms whereby to positively move the arms andthe cleaner bar rearwardly when'the bucket is tilted. V

2; The combination of a drag line bucket having a curved rear end wall provided with slots, a cleaner bar in contact with the curved rear wall'of the bucket and having 7, arms extending through the slot, and a spreader member overhanging the bucket and arranged in the path of travel of said arms whereby to positively move the arms and the cleaner bar rearwardly when the bucket is tilted, said slots'constituting air inlet means and said arms being adapted to maintain the slots free of dirt.

3. The combination with a drag line bucket having trunnions, ofhoisting chains connected to said trunnions, a spreader spacing the chains, a cleaner arranged within the bucket and having arms, cablesconnectoperate said cleaner bar, said arms formin ing the arms to said spreader, and anti-friction means carried by said arms and contacting with the outer side of the bucket,

said bucket being provided with a curved rear end wall having slots receiving said arms and adapted for the passage of air, said arms beingadapted to maintain the slots free of dirt.

5. Anattachment for drag line buckets comprising a cleaner bar adapted to bearranged in contact with the curved rear end wall of a drag line bucket and having arms adapted to be extended through the bucket, said arms being adapted to be located in the path of travel of the spreader bar of the bucket whereby the cleaner bar is positively operated when the bucket is tilted to its dirt discharging position.

6. An attachment for drag line buckets comprising a cleaner bar adapted to be arranged within a drag line bucket and having arms arranged 1n the path of travel of and adapted to be engaged by the spreader bar of the bucketswhereby the cleaner bar is positively operated when the bucket is tilted.

7. An attachment for buckets comprising a cleaner bar adapted to be arranged in scraping engagement with the wall of a drag line bucket and having actuating members in the path of travel of andengaged by the spreader bar of a bucket whereby the cleaner bar is bucket is tilte p 8. The combination with a drag line bucket having its rear end wall provided with slots, of a cleaner arranged in said bucket and having arms movable in said slots to keep the slots clean. 7

9. The combination with a drag line bucket having slots, of a cleanerbar arranged within the bucket and having arms movable through said slots, a spreader bar having connection with said bucket and adapted to engage said arms whereby to O b a means for keeping the slots clean.

ERNEST LEE BARTMEss.

positively operated when the

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