US1580725A - Ditch-excavating bucket - Google Patents

Description

INVENTOR CHARLES HHRRIEUN- April 13 1926.

f C HARRISON DITGH EXGAVATING BUCKET' Filed Nov. 12, 1925 Patented Apr. I3, i926.

CHARLES'HARRISON, oFvANoouvER, BRITISH COLUMBIA, CANADA.

pI'rcH-nxoAvATINe BUCKET.

Application led November 12, 19?'5.v Serial'No. 68,671.

and designed to enable a ditch to be cut of a width inexcess of that of the bucket and in a manner that the earth removed from this extra width is either delivered into the bucket as removed if the bucket is not full, or if the bucket will not receive it, it falls into the. ditch to be removed on the next lift. .In a ditch excavator of this class the width of theditch cut is practically that of the excavator bucketj and ifa wider ditch is required, a widerbucket must be used.

This requirement is objectionable not only on account of the expense of providing a separate bucket for every width of. ditch to be cut and the' inconvenience olf-having to remove' one bucket and attach another, but is also open to objection in that where the ground being excavated is unusually hard or tough, as in hard-pan or clay, a narrow bucket is much more effective than a wide one, as the cutting edge of a wide bucket will not penetrate a hard earth to a sufficient extent to till the bucket.

me overcome these difficulties I provide each. side of the bucket with a supplementary plough-shaped scoop. These scoops are removably secured to the sides of the bucket.

andremove the earth from the sides of the ditch as cut by the bucket proper. The form of these "scoops is such as to deliver the removed earth directly into the bucket if the same is not full, or if full the loosened earth falls into the ditch to be removed in the next lift.

The invention is fully described in the following specification', 'reference being made to the drawings by which it` is accompanied, in which Fig. l1 is an elevation of the scoop, which is theparticular subject of this application, from the inside of the bucket.

Fig. 2 is a front view of the same.

Fig. 3, a sectional 1n Fig. 2, and

Fig. 4l: isv a perspective view of an excavatplan on the line 3 3 ing bucket showingthe application of the side scoops thereto.

In -these drawings 2 represents the bottom and 3 the 4sides ot the bucket, 4 being the .excavating teeth which are secured to the front edge of the bottom 2 ward from it.

The improvement consists in the provision of outwardly projecting side scoops 5 Which are removably secured at 6 to the front edges ofthe sides 3 of the bucketv adjacent the bottom 2. The cutting edges 7 to project out- -of these scoops are projected laterally outrward from the sides and forward. from the `front edge thereof to extent sufficient to provide al sloping delivery backward into the bucket, so that as the teeth 4:' of the bucket excavate the bottom' of the ditch,

these lateral scoops will remove the earth rom'the sides and will deliver it into the bucket, and similarly as" the bucket having scraped the bottom of the ditch, is drawn upward to the top, the scoops 5 will remove the earth fromthe sides of the ditch. It the bucket is full the earth removed by the scoops 5 will simply fall to the bottom ofthe ditch to be filled intothe bucket during the next lift. j From the form of'thescoops and their limited size and the fact that the earth is removed from the open sidesofthe ditch,

the extra ej'ort imposed `on the excavating mechanism by these .scoopsis comparatively trilling, so that Awe are enabled to cut a greater width of ditch with a less' size of ex cavator bucket. By drawing the excavator bucket up .one side of" the ditch or the other,

a greater width of ditch can be excavated than the width overhthe scoops.

I am aware that side Scrapers have here- A tofore been applied to the sides of ditch bedded inthe Sides of the ditch they are sufiicient to resist the action of the side Scrapers, whereas m the side scoops, whlch .are the particular subject of this application, the cuttingedges 7 are not in uniformr 'ing bucket, of`a supplementary scoop replanes and are not parallel to the sides of the bucket, so that unless the stones are `of abnormal size the sco-ops will readily remove them with the earth.

As the scoops are removably connecte-d to the sides of the excavator bucket, a selection of scoops of diferent'project-ing dimensions may be furnished to cut ditches oi `diiferent A widths, as it is considerably cheaper to have a selectlon of these relatively mexpenslve scoops than a selection of buckets of dlil'erent lwidths as is the practice at present.

Having" now particularly described my invention, I hereby declare that what I claim as new and desire to be protectedin by Letters Patent, is: K

1. The combination witha ditch excavating bucket5 of a supplementary' ear-like scoop removably secured to each side of the bucket and having a cutting edge which projects laterally outward and forward from the front edgeof the sides of the bucket.

. 2. The combination with a ditch excavatmovably secured to each side of the bucket,

the cutting edge of which scoop angles laterally outward from th'e side and forward -from the front edge of the same to deliver 'the material removed from the sidel ot the ditch into the bucket.

3. A supplementary scoop for ditch exeavating buckets having side walls, said scoop comprising a bifurcated body to lit over the edge of the bucket wall and a plate extending laterally from thebo'dy in front of' and toward the outside of the bucket,

said-plate having@r a continuous cutting edge and beingci'irved and inclined so as to direct the material cut by itvinto the bucket.

l In testimony whereof I ailixvmy signature.

CHARLES HARRISON.

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