US336408A - haywaed - Google Patents

Description

(No Model.) 3 Sheets-Sheet 1.

J. H. HAYWARD.

GRAPPLING AND DREDGING BUCKET. No. 336,408. Patented Feb. 16,1886.

XAAM $41 M N. PETERS Phowulhogn mr. Washington, D. r;

(No Model.) 3 Sheets-Sheet 2. J. H. HAYWARD.

GRAPPLING AND DREDGING BUCKET. N0. 336,408. Patented Feb. 16, 1886.

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(No Model.) 3 Sheets-Sheet 3.

' J. H. HAYWARD.

GRAPPLING AND DREDGING BUCKET.

Patented Feb. 16 1886.

Z/l'izazsea M A 2km UNITED STATES PATENT Orricn.

JOHN H. HAYWARD, OF NENV YORK, ASSIGNOR TO EMMA L. HAYWARD, OF PORT RICHMOND, N. Y.

GRAPPLING AND DREDGING BUCKET.

$PECIFICATION forming part of Letters Patent No. 336,408, dated February 16, 1886.

(No model.)

a citizen of the United States, have invented an Improved Grappling and Dredging Bucket,

of which the following is a full, clear, and exact description, reference being had to the ac companying drawings, forming part of this specification.

My invention relates to a bucket for use in grappling, digging, dredging, and similar work; and it consists in abucket composed of sections of an inverted hollow cone, the apex of which is the center of the bucket-bottom, 5 said sections being provided with suspendingrods and operating-arms, as hereinafter described,and,furthermore, in the combination, with the aforesaid bucket, of the particular devices hereinafter specified and claimed.

Figure 1 is a side elevation of my improved bucket when open. Fig. 2 is a similar view of the same when closed. Fig. 3 is an underface view of the upper block or plate of the apparatus. Fig. 4 is a side elevation show- 5 ing the bucket half-way opened. Fig. 5 is a plan of Fig. 4. Fig. 6 is a plan, the bucket being closed. Fig. 71s a view in detail of the upper and lower blocks and the suspending and operating tackle.

My bucket is composed of the sections A, which may be three or more in number, although I find it preferable to employ four equal sections, as shown in the drawings. These sections are each preferably made in 3 5 two halves or parts, a and a, which are united by flanges a along the central line of each section and interiorl y of the bucket, as shown. The several sections are so shaped that when they are assembled with their side edges in contact, as shown in Fig. 2, they will constitute a bucket in the form of a hollow inverted cone, the apex of the cone being the center of the bucket-bottom. To this end the surfaces of the sections are planes, as shown at a extending in right lines from at or near the upper edges to and convergent toward the point a at the center of the bucket-bottom. The sections A are suspended on rods B,extending from pivotsin the upper block,D, one to the upper edge of each section, where it is likewise pivoted. The sections are operated to open or close by means of the arms 0. These arms are all of the same length, and are all pivoted in the same plane to the lower block, E, and they extend radially one to the rim of each of the sections. These arms are of such a length relatively to the diameter of the bucket that when the bucket is closed, as

in Fig. 2, the adjacent side edges of the sec tions being thereby brought into contact, or substantially so, the plane of the pivots ofthe arms C in the lower block,E,will be above the plane of the joints of the other ends of the arms to the bucket-sections. By this means when the bucket is opened by the descent of the block E, the downward movement of said block will bring the pivotpoints of the arms 0 into the same plane with the joints of the other ends of said arms with the sections, thus causing the said sections to separate and move away from each other at their rinrline, as shown plainly in Figs. 4 and 5. In other words, the circle constituting the rim of the bucket is thus enlarged, carrying the adjacent upper corners of the bucket sections away from each other. XVhen the bucket-sections are fully opened downward by the further descent of the block E to a plane below the plane of thejoints ofthe arms 0 with the sections, the sections will be brought toward each other on the rlmline,and the adjacent corners of the sections will be brought into contact, and will act to stop orlimit the further downward opening of the sections.

By means of these several parts, constructed and arranged as described, the necessity of having overlapping sections to constitute the bucket, or of permitting the sections to overlap one another when they are opened downward, is wholly avoided, and it is evident ago more economically-constructed bucket, and one which is more effective and less liable to get out of order than a bucket having overlapping sections, is obtained.

As is seen in Fig. 1, when the sections are opened, owing to their hereinbefore-described shape, they will extend downward insubstantially vertical right lines, with their lower ends or points directed vertically toward the material to be dug or grappled, so that an aug- 10c mented penetrating effect by the sections is secured, and consequently a larger amount of material is gathered into the bucket when the sections are closed together than is the case in buckets the sections of which are more or less curved longitudinally from rim to points.

In constructing my bucket I prefer to provide flanges a at the upper corners of the sections, which flanges are desirably turned inwardly, and to rivet the ends of the arms 0 to these flanges, as shown in Figs. 5 and 6. By this means not only is a strong union of the arms and sections obtained, but the adjacent faces of these flanges a on the opposed section-corners constitute excellent and durable contact-surfaces, which meet flatwise when the sections are entirely opened or closed. I also prefer to form the arms 0 each of the two angular branches 0, which at their inner ends are parallel, and are seated astride of the lugs e on the block E, and have the pivot-bolt e passing through them and said lug, thus constituting pivot-joints which are all in the same plane on the said block, as hereinbefore specifled. The outer ends of the branches of said arms 0 diverge and extend to the side edges of the sections, and there have the elbow ends a, which are riveted to the flanges a aforesaid. The arms 0 are desirably given cross-braces 0 as shown. The upper block, D, I prefer to make in a single piece, recessed on its under side to constitute the radial lugs (l, to which the upper ends of the rods B are pivoted, and also having the pulley-bearings (1 cast on said block. The block has a central opening to permit the passage of the operating-chain. On

its upper face it is provided with a staple, to furnish a hold for thesuspending-chain. Lugs d are bolted upon the interior face of the sections-one on each, as shownand extend above the rim thereof. I prefer to constitute the suspending or connecting rods of two parallel bars, I), provided with cross-pieces b, and with their upper and lower extremities seated astride of the lugs 11 and 01 respectively, and there provided wit-h the transverse pivotal bolts b". a

By means of the construction described an exceedingly strong and durable apparatus is formed. Centrally of the block E rise the pillars a in which the shaft f has bearings.

On this shaft, between the pillars, is the large operating-pulleyf. On the ends of the shaft, outside the pillars, are the smaller pulleysf The lower or movable block, E, is suspended to the upper or stationary block, D, by the chains G, which extend from said block, to

- which one end is secured, to the periphery of the pulleys where the other end is fastened, one to each. These chains are of alength sufflcient to permit the block E to descend until the sections A are fully opened downward. A chain, G, secured at one end to the pulley f at its periphery, and passing around said pulley when the bucket-sections are open, extends thence upward past the friction-pulley J. in the block D to and through the opening in said block, from whence it may run to a Windlass. WVhen it' is desired to open the bucket, the chain G is slackened, the block E thereby descending and the chains G running off the pulleys f while the chain G will wind once onto the pulley f. To closethe bucket sections, the block E is drawn upward by a pull on the chain G, which, assisted by the leverage of pulley f, raises the block, the suspending-chainsG winding on the pulleys f as the block rises.

It is evident that by means of these operating devices, in combination with the bucket having its blades or sections of the peculiar shape described, so as to enter the material to be collected in vertical lines, a powerful and efl'ective means offllling and closing the bucket is secured.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. A dredging-bucket composed of three or more equal sections of an inverted hollow cone, the apex of which is the center of the bucket-bottom, together with mechanism,substantially as described, whereby the several sections when opened downward will extend vertically toward the substance to be penetrated and collected, as and for the purpose specified.

2. A dredging-bucket composed of equal sections of an inverted hollow cone with their edges opposed and in contact, in combination with operating-arms, all of equal-length and pivoted in one and the same plane to a movable block, E, said plane being, when the sections constitute the closed bucket, above the plane in which the extended ends of the arms are jointed to the bucketsections, whereby when the bucket is opened by the descent of the said block the sections will separate at their rim-line, as specified, and for the purpose set forth.

3. A dredging-bucket composed of equal sections of an inverted hollow cone with their side edges opposedly in contact, in combination with the operating-arms and movable block, substantially as described, and having the described flanges at their upper or rim corners, whereby contact-surfaces are there constituted, as and for the purpose described.

4. A dredging-bucket composed of equal sections of an inverted hollow cone with their side edges opposedly in contact, in combination with a movable block suspended to astationary block, and arms pivoted to said n:1ova-- ble block in one and the same plane and jointed at their extended ends to the bucketsections in a lower plane, together with con-.

necting-rods intermediate the rim of the bucket-sections and the stationary block and pivoted to each, whereby when the bucket-sections are opened downward the adjacent corners of the bucketsections will be opposedly in contact, as and for the purpose specified.

.5. In a dredging-bucket composed of equal sections of an inverted hollow cone, the side edges of which are opposedly in contact, the said sections, composed of two halves with longitudinal flanges riveted together, as and for the purpose specified.

6. In a dredging-bucket composed of equal sections of an inverted hollow cone, the side edges of which are opposedly in contact, the combination, with such sections, of the arms 0, composed of the branches 0, parallel at their inward'ends, and there engaging and pivoted to lugs on the block E, and having divergent outward ends extending and rigidly attached to the flanges a of the bucket-sections, as and for the purpose specified.

7. In combination with the equal sections of adredgingbucket, in the form of an inverted hollow cone with opposedly meeting side edges, and a stationary block, D, the connect- JOHN H. HAYWARD.

\Vitnesses:

A. S. FITCH, A. G. N. VERMILYA.

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