US1128398A - Bucket. - Google Patents

Description

H. S. ATKINSON.

BUCKET.

APPLICATION FILED JUNE 3, 1908.

Patented Feb. 16, 1915.

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r H. S. ATKINSON."

BUCKET.

APPLICATION FILED JUNE 3, 1908.

1, 1 2&398, Patented Feb. 16, 1915.

I '2 SHEETS-SHEET 2.

WITNESSES 1 INVENTUII &

I nrranmsrs HERBERT S. ATKINSON, OF WEEI-IAWKEN, NEW JERSEY, ASSIG-NOR TO THE I-IAY WARD COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

BUCKET.

Application filed June 3, 1908.

To all whom it may concern Be it known that I, HERBERT S. ATKINSON, a citizen of the United States, and a resident of the town of l/Veehawken, county of I-Iudson, and State of New Jersey, have invented certain new and useful Improvements in Buckets, of which the following is a specification.

This invention relates to certain novel and useful improvements in buckets, and has particular application to a structure of the class described, pertaining especially to use in connection with dredging, excavating and loading buckets. In the present instance, by way of illustration, I have shown my invention as employed in connection with a clamshell bucket of the well known F Hayward type, but I wish it to be understood that the invention is not limited to the particular application which, for the purpose of illustration, I have herein delineated.

In the present instance it is one of my purposes to provide a rope guard so located and installed relative to the remainder of the bucket that while it will guide and protect the operating ropes of the bucket, it will not in any way interfere with the action of the operating chains or cables, by which the power wheel and power shaft are actuated.

Still another purpose of the invention is to so arrange the guard that it may rise and fall with the closing and opening of the bucket without in any way interfering with the operating of the bucket or with the load carried thereby. V

A further purpose of this invention is to provide a novel form and arrangement of braces for the'bucket sections whereby the upper end of the parts known as the blade arms, or that portion receiving the power wheel shaft, is reinforced and strengthened,

at the'same time provides for a positive connection for the rope guard frame.

' The invention consistsin the construction, combination and arrangement of parts set forth'in and falling within the scope of the appended claims. p Referring now to the accompanying drawings in detail, Figure 1 is a side elevation of a bucket provided with my improved form of rope guard. In said view the full lines show the bucket in its closed position while the dotted lines show the-bucket in its open position ready to grab a load; Fig. 2, is an end View of the bucket; Fig. 3 is a face new vother suitable locking means.

Specification of Letters Patent. Patented Feb. 16, 1915,

Serial No.436,34=0.

showing the power wheel with my improved rope guard around the same; Fig. 4 is an edge v1ew of said power wheel; Fig. 5 is a r'ron.

view taken on the line 55 of Fig. 3; Fig. 6

is a detail perspective view of one ofthe spider arms ofthe guard and showing the arm secured to a cross bar, this being the means by which the guard is mounted relative to the bucket; Fig. 7 isv a detail view of the guard itself.

Referring now to the accompanying drawings in detail, A designates the bucket as an entirety, in the present instance the bucket being of clam-shell form and comprising I the two sections 5, 5 pivoted together by means of the power shaft 6, said shaft carrying the power wheel 7 v I I The operating chains of the bucket are in.

dicated at 8, 8 said chains being wrapped i about the hub of the power wheel and are upon opposite sides of saidwheel.

9, 9 and 10, 1O designatethe diagonal arms of the bucket frame pivotally supported on the shaft or .pintle 11 beneath the hood bearing 12.

13 is the hoisting rope and 14 is the opening and closing rope of the bucket.

15, 15 and 16, 16 designate the braces of the bucket section. It will be noted that the lower diagonal braces 16 extend from the blade arms 5 of the bucket sections down to approximately the center of the upper edge of the bucket section, said braces 16 forming a support for the crossbrace a carrying the rope guard B. The diagonal braces 16 and the inclined braces 15 are bolted together at their point of junction, the whole forming a compact, powerful support for the bucket sections, at the same time the braces at one section carrying the cross brace a provide a firm support for the. rope guard.

in detail in Figs..3, 1 and 7 comprises, in the preferred form shown in Figs. 3 and .4,- a hub member 17 formed of two sections 18, 18 pivoted together at 19, each of said sections being provided. with an extending lug The rope guardB, wh'ch is shown more 20 which, when the hub is clampedloosely about the hub of the power wheel, maybelocked or secured together by bolts 21, or

i It will be observed by reference to Figs. 2 and 4 that the hub memberis duplicated; that is to say, one of such hubs is located upon each sideofthe-wheel, and'each huh m. is mended being adapted to have bolted or otherwise secured thereto, one member of the double or looped arm 23, the opposite member of the double arm extending around the wheel and being bolted to the opposite lug of the other hub section. At the point where the arm loops or passes over the periphery of the wheel I secure a suitable rope shoe 24, so that the operation of the operating rope around the periphery of the power wheel rope is suitably confined and guided and at the same time a suitable wearing surface is also provided. Furthermore, the form, position and arrangement of the shoes 2% are important features of my invention. In the first place, it will be seen that the shoe is relatively short in extent, as compared to the periphery of the power wheel; also, its inner'surface is curved to conform to an arc or a portion of the curved periphery of the power wheel or its groove, the construction and arrangement being such that when the bucket is fully opened and the power wheel stops rotating, the slack that then occurs, to a greater or less degree, in the rope will be taken up by the several shoes on the guard arms, the slack rope normally forming a series of short loops projecting respectively between adjacent sets of guard arms, for

as the guard shoes project within the groove or score of the wheel, they afford frictional surfacescontacting with the rope, and while they permit the movement of the rope longitudinally through the spaces between the respective shoes and the inner surface of the power wheel groove, they also act, in a sense, as brakes for the prevention of too rapid movement of the rope, which has heretofore been a source of trouble, through tangling of the rope, frequently causing stoppage of the work. As heretofore stated, the rope guard is secured to the cross brace a, which brace is carried by one of the sections of the bucket so that when the bucket is opened and the power wheel with its adjacent parts lowered, as is shown in dotted lines in Fig. 1, the guard will swing therewith, so that the periphery of the power wheel would strike the load first before the guard and at the same time when the bucket is closed the guard will be turned out of the way of the free part of the line, as shown in full lines in Fig. 1. It will be readily appreciated that when the bucket begins the opening movement from the closed position (indicated in full lines in Fig. 1), as the rope 14 isattached to the power wheel, there will be a weight or pull on the rope so that the rope will require substantially no guarding during the early part of the opening movement. Howeven when the bucket reaches the fully open position, (as shown in dotted lines in Fig; 1') and the power wheel comes to a stop the f rope' requires 1 very efiicient guarding,

and, as illustrated herein, in the position assumed by the guard at this particular moment, it is most effective to take care of the slack, as hereinbefore stated, at which time, the guard arm shown at the lower righthand side of the wheel in full lines in Fig. 1, takes the position shown at the upper righthand side of the wheel in dotted lines in said Fig. 1, and in this position it remains until, in the closing operation, the slack of the rope is taken up, when the closing movement of the power wheel begins.

In Fig. 7 I have shown a slightly modified form of rope guard or spider, in this case, instead of hinging the two sections of the hub together, as is shown in Fig. 3, I provide each section with the extending lugs 20, 20 which are bolted together. The construction of the radiating arms 23 is the same as shown in Fig. 3.

One advantage of forming the guard or spider in two sections is that it may be reaolily removed from the bucket without in ny manner interfering with the mechanism or without rendering it necessary to detach or dismember any other parts of the bucket.

While I have herein shown one embodiment of my invention, I wish it tobe understood thatl do not limit myself to the pro cise details of construction herein delineated, but that variation and modification may be made without departing from the spirit of my invention and without exceeding the scope of my claims.

Having thus described my invention, what I claim and desire to secure by Letters Patent is 1. In a clam shell bucket, the combination of a plurality of bowl sections, means for opening and closing said bowl sections, including a power wheel and shaft therefor, rope-guard supporting means carried by one only of the bowl sections, and a rope guard secured to said supporting means, comprising a plurality of hub members on opposite sides of said power Wheel and having limited rotary movement about said shaft, and a plurality of shoe-carrying arms connected to, and connecting, said hub members, and adapted to span the periphery of said power wheel.

2. In a clam shell bucket, the combination of a plurality of bowl sections, means for opening and closing said bowl sections, including a power wheel and shaft therefor, rope guard supporting means carried by one only of the bowl sections, and a rope guard secured to said supporting means, comprising a plurality of hub members on opposite sides of said power wheel and having limited rotary movement about saidshaft, a plurality of guard arms connected to, and connecting, said hub members, and adapted to span the periphery. of saidpow erwheel, and

a plurality of I guard. shoesiconnected respectively to said guard arms and projecting within the groove of the power wheel.

3. The combination with a bucket formed of a plurality of bowl sections, blade arms on said bowl sections, brace members extending from the blade arms of the bowl sections to the body portion of the bowl sections, a rope guard, and means connecting said guard to certain of the brace members.

4. The combination of a bucket formed of a plurality of pivoted bowl sections, a plurality of blade arms rigidly secured to each of said bowl sections, means'for opening and closing said bowl sections, including a power wheel, a rope guard for said power Wheel, comprising a plurality of hub members mounted on opposite sides of the power wheel, a plurality of shoe-carrying arms connected to, and connecting, said hub members, and means whereby said rope guard is supportably connected to the blade arms of one only of the bowl sections.

5. The combination of a bucket provided with a plurality of bowl sections, blade arms on said bowl sections, means for opening and closing the same including a power wheel, a rope guard for said power wheel comprising a plurality of hub members mounted on opposite sides of the power wheel, a plurality of shoe carrying radiat ing arms on said hub members, brace members extending from the blade arms of the bowl sections to the body portion of the bowl sections, and means connecting said guard to certain of said brace members.

6. The combination of a bucket provided with pivoted bowl sections, means for opening and closing the same, including a power wheel, a shaft therefor and operating chains, a rope guard for said power wheel, comprising a plurality of hub members each formed of a plurality of sections separably secured together and mounted on opposite sides of the power wheel betweenv said chains, a guard member connecting said hub members, and means securing said rope guard to one only of the bowl sections.

7 Ina bucket, the combination of a plurality of bowl sections, means for opening and closing the bowl sections, including a power wheel and an operating rope therefor secured thereto, and a rope guard for said rope comprising a plurality of guard arms spanning the periphery of the power wheel, means for supporting said guard arms from opposite sides of said wheel, and a plurality of relatively short friction shoes, having arc-shaped inner surfaces mounted respectively on said arms, and projecting within the peripheral groove of the power wheel.

8. In a bucket, the combination of a plurality of bowl sections, means for opening and closing the bowl sections, including a power. wheel and an operating rope therefor secured thereto, a rope guard for said rope comprising a plurality of guard arms spanning the periphery of'the power wheel, a plurality of friction shoes mounted respectively on said guardarms and projecting within the peripheral groove of the power wheel, means whereby "said rope guard is supported on opposite sides of said wheel, and means whereby said guard is given limited rotary movement about said wheel as the latter is vertically moved to close and open the bucket.

' HERBERT s. ATKINSON.

Witnesses:

R. B. CAVANAGH, A. PAULING.

,(fiopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G.

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