US1005618A - Bottom-dumping hoisting-bucket. - Google Patents

Description

A. N. DOUD. BOTTOM DUMPING HOISTING BUCKET. APPLICATION FILED 00T.11.1910.

Patented Oct. 10, 1911.

2 SHBBT8-SHEET 1.

t 5) Q {m m @Zf Armflaw A. N. DOUD.

BOTTOM DUMPING HOISTING BUCKET.

APPLICATION FILED-00111. 1910. 1,005, 1 Patented 001;. 10, 1911.

2 SHEETSSHBET 2.

COLUMBIA. PLANDGRAPH c0. WASHINGTON. D. c.

UNITED STATES PATENT ()FFTCE.

ARTHUR N. DOUD, OF NORTH STOCKHOLM, NEW YORK, ASSIGNOR T0 S. S. SAFFOLD, OF CLEVELAND, OHIO.

BOTTOM-DUMPING HOISTING-BUCKET.

Specification of Letters Patent.

Application filed October 11, 1910.

Patented Oct. 10, 1911.

Serial No. 586,568.

To all whom it may concern.

Be it known that I, ARTHUR N. DoUD, a citizen of the United States, residing at North Stockholm, in the county of St. Lawrence and State of New York, have invented a new and useful Bottom-Dumping Hoisting-Bucket, of which the following is a specification.

The invention relates to a double door bottom dumping hoisting bucket.

The object of the present invention is to improve the construction of bottom dumping hoisting buckets, and to provide a double door bottom dumping hoisting bucket, designed especially for transporting and depositing concrete in forms where the work is such that the material must be under constant and perfect control, and equipped with bottom doors or gates, adapted to be opened or closed any width within the limit of their movement, so as to hold the material under perfect control.

Another object of the invention is to provide a discharge bucket of this character, so constructed and having its operating mechanism so arranged that it will be adapted to be lowered well down into the form before the gates or doors are opened and the material discharged, whereby the bucket in handling sloppy concrete is adapted to prevent absolutely side splash and the consequent waste of material.

A further object of the invention is to provide a self supporting bucket, requiring no braces or platforms to support it, and adapted to be used in transporting concrete 011 fiat cars to enable a plurality of buckets to be placed on the car and run under a mixer and filler with as little trouble as would be required to fill ordinary flat bottom buckets or receptacles.

The invention also has for its object to provide a bottom dumping hoisting bucket, capable of dumping cleanly and rapidly and characterized by a great simplicity of the working parts, and equipped with operating mechanism, arranged to permit one hand to hold the bucket under absolute control.

lVith these and other objects in View, the invention consists in the construction and novel combination of parts hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claims hereto appended; it being understood that various changes in the form, proportion, size and minor details of construction, within the scope of the claims, may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

In the drawings :Figure 1 is a side elevation of a dumping bottom hoisting bucket, constructed in accordance with this invention, the swinging door sections being closed. Fig. 2 is a similar view, the swinging door sections being open. Fig. 3 is a central vertical longitudinal sectional View, the parts being arranged as shown in Fig. 1. Fig. 4 is an end elevation, partly in section. Figs. 5 and 6 are detail views of one of the side plates of the swinging door sections.

Like numerals of reference designate corresponding parts in all the figures of the drawings.

In the embodiment of the invention illustrated in the accompanying drawings, 1 designates the body of the bucket, designed to be constructed of any suitable material, preferably stout sheet metal, and composed of two parallel side plates 2 and oppositely sloping end plates 3, connected together at their contiguous edges by metallic angle strips 4, arranged within the body of the bucket in the angles formed by the side and end plates and secured to the latter by rivets. The top of the bucket is encircled by a band 5, which like the angle strips 4, is riveted to the side and end plates of the body. The end plates 3 are angularly bent near the bottom of the bucket to provide lower vertical portions 6, and the side plates are provided at the bottom of the bucket with extensions or narrow portions 7 having straight vertical side edges, secured to the vertical portions 6 by lower terminal vertical portions 8 of the angle strips 4. This construction forms a rectangular neck at the bottom of the bucket, which is reinforced at the vertical portions 6 of the end plates by horizontal angle strips or bars 9, having one of their flanges or wings fitted against and riveted to the end plates 3, as clearly illustrated in Figs. 3 and 4 of the drawings. The side and end plates may,

however, be secured together and reinforced in any other preferred manner.

The lower edges of the side plates of the body of the bucket are curved and consist of opposite arcuate portions 10, meeting at their terminals in the plane of the center of the side plates. The bottom of the bucket is adapted to be closed by swinging door sections 11, composed of opposite vertical end plates 12 and curved bottom plates 13, conforming to the curvature of the arouate edges 10 and meeting at the inner terminals thereof when the door sections are closed. The bottom plates are riveted or otherwise secured to inwardly extending curved flanges 14, preferably cast integral with the vertical end plates 12 and arranged at the inner faces thereof above the lower edges of the same. Instead, however, of forming the sides and bottoms of the door sections separate, they may consist of a sin gle piece of metal, cast or otherwise constructed. The end plates 12, which are located at opposite sides of the bucket eX- teriorly of the side plates, are approximately rectangular and are provided at their tops with inner and outer bearing openings 15 and 16, preferably in the form of integral horizontal tubular portions. The inner bearing openings 15 receive fixed studs 17, projecting horizontally from the side plates of the bucket at opposite sides of the median line thereof, and formed rigid with vertical attaching plates 18, which are riveted or otherwise secured to the side plates of the bucket. The rivets, which fasten the attaching plates 18 of the studs of the bucket, also secure bracing plates 19 to the same. The bracing plates 19 are angularly bent to form upper and lower vertical portions and a horizontal connecting portion, the upper vertical portion being fitted against the plate 18 and the lower vertical portion being provided with openings for the reception of the outer portions of the pivots or studs 17. The outer portions of the studs or pivots 17 are provided with perforations for the reception of cotter pins 20, which are arranged at the outer faces of the bracing plates 19. The bracing plates 19 also cover and protect the pivotal point-s of the side plates of the door sections, and prevent concrete or other plastic material from falling between the inner edges of the plates 12 and interfering with the closing of the door sections. The pivots 17 are arranged centrally with relation to the arcuate edges at the bottom of the bucket and the curved bottom plates, which are concentric with each other and with the pivots. The side plates of the door sections have horizontal lower edges and are provided with lateral outwardly extending horizontal supporting flanges or feet 21, which rest upon the supporting surface and support the bucket in an upright position. This will enable the bucket to be placed upon a fiat car and run under a mixer and filler with the same facility as an ordinary flat bottom bucket, and it obviates the necessity of providing a special car and a special support for the bucket. The side plates of the door sections are also preferably reinforced by integral marginal flanges 22, arranged at the outer upright edges of the side plates and extending laterally therefrom. The inner edges of the curved bottom plates meet at the center of the bucket, and the inner edges of the vertical side plates are oppositely beveled, as shown, to permit the bottom plates to come squarely together when the door sections are closed.

The means for operating the door sections comprise a swinging element composed of a lever or a pair of levers 2 f, fulcrumed at op posite sides of the bucket eXteriorly of the outer side plates on pivots or studs 25, each having an attaching plate or head 26 at its inner end, which is riveted to the adjacent side plate of the bucket. The levers 2 1 are provided with apertures through which the horizontal studs 25 pass, and they are secured on outer reduced portions of the studs by means of a washer 27 and a screw 28, but any other suitable fastening means may be employed. The pivots or studs are both located to one side of the median plane of a centrally arranged bail 29, and each lever is composed of a long outwardly extending arm and a pair of short arms 30 and 31, connected by links 32 and 33 with the side plates of the door sections, each lever and its respective pair of links forming toggle joints or connections. The long arms of the levers are preferably curved at their outer portions and are connected by a transverse handle bar 34-, which is located at the top of the bucket when the door sections are closed. The short inner arms 30 and 31 are arranged at an acute angle to each other and at an obtuse angle to the long arm. The links 32 and 33 are inclined and diverge downwardly, their upper ends being con nected directly to the arms 30 and 31 by suitable pivots 35, located equal distances from the fulcrum of the lever. The lower ends of the links are secured to the end plates by pivots 36, which are arranged in the bearing openings 16. Then the door sections are closed, the long arms of the levers are arranged at an inclination and extend upwardly and downwardly to the top of the bucket at one end thereof. hen the swinging element is moved downwardly from such position, it acts through the links to pull the door sections open simultaneously and at the same rate, and when the swinging element is raised or moved upwardly, it operates through the links to push the door sections closed. The arrangement of the operating mechanism in this position enables the bucket to be introduced well into a form before the door sections are opened, which is a great advantage in handling sloppy material, as side splash and waste of the same are effectually prevented. \Vhile in the pres ent instance a swinging element is shown composed of two connected levers, it will be understood, however, that in some buckets of small capacity where the door sections are comparatively light and the load to be carried is relatively small, a single lever will be sufficient.

In order to lock the door sections in their closed position, the bucket is equipped with a pivoted latch 37, consisting of a shank provided at the outer end thereof with an engaging portion or head 38 and mounted at the inner end of the same between vertical ears or flanges 39, formed integral with attaching plates or portions 40, which are fitted against the band 5 and riveted or otherwise secured to the bucket. The pivotal latch preferably consists of a bolt tl, piercing the ears or flanges and the inner end of the shank, which is also provided with a depending lug 42, arranged to engage the band 5 of the bucket for limiting the downward swing of the latch to prevent the latch from dropping too low. The connecting handle bar of the swinging element is adapted to lift the latch and automatically engage with the same in the closing movement of the door sections, and the latch is arranged in a position to enable it to be conveniently operated by the same hand, which controls the swinging element. The latch is adapted to be swung inwardly and backwardly over the bucket to free the swinging element, and it will be supported in such posit-ion by the end wall of the bucket, as illustrated in full lines in Fig. 2 of the drawings. The handle portion of the swinging element is also in convenient position for controlling the opening and closing movements of the door sections, in order that the desired quantity of the contents of the bucket may be discharged as rapidly or slowly as desired, so that the operator has absolute control of such contents. The curvature of the bottom plates of the door sections and their arcuate movement facilitate an easy opening and closing of the door sec tions.

The suspension bail 29 extends across the top of the bucket and is rigidly secured to the inner faces of the side plates of the bucket by angle connecting pieces 48, riveted to the bucket and to the depending extremities of the bail.

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

1. A bucket open at its top and bottom, door sections for the open bottom separately pivoted on the bucket to swing inwardly and outwardly to closed and open positions, a swinging lever element fulcrumed on the bucket, links pivotally connected directly with the lever element and the door sections at such points to cause both sections to open simultaneously and at the same rate, the

lever element being arranged to act through the links to pull the door sections open as the lever element moves downward and to push the sections closed as the lever element moves upward, and an automatic latch for locking the door sections in their closed position.

2. A bucket open at its top and bottom, door sections for the open bottom separately pivoted to the bucket to swing inwardly and outwardly to closed and open positions, a swinging lever element fulcrumed on the bucket and having a handle portion arranged at the top of the bucket when the door sections are closed, links pivotally connected directly with the lever element and door sections at such points to cause the door sections to open when the handle portion of the lever element moves downward and to close when the handle portion of the lever element is raised, and an automatic latch located at the top of the bucket and engaging the handle portion of the lever element for locking the door sections in their closed position.

3. A bucket open at its top and bottom, door sections for the open bottom pivoted to the bucket to swing inwardly and outwardly to closed and open positions, a swinging lever element fulcrumed on the bucket and having a handle portion arranged at the top of the bucket when the door sections are closed, links pivotally connected directly with the lever element and door sections at such points to cause both door sections to open when the lever element is moved downward and to close when the lever element is moved upward, and a latch mounted on the bucket at the top thereof and engaging the lever element for locking the door sections in their closed position.

4. A bucket open at its top and bottom, door sections for the open bottom pivoted to the bucket to swing inwardly and outwardly to closed and open positions, a swinging lever element fulcrumed on the bucket and having a handle portion arranged at the top of the bucket when the door sections are closed, links pivotally con nected directly with the lever element and door sections at such points to cause both door sections to open when the lever element is moved downward and to close when the lever element is moved upward, and an automatic latch mounted on the bucket at the top thereof and arranged in the path of the handle portion of the lever element and engaging the same to hold the door sections closed. I

5. A bucket open at its top and bottom, door sections for the open bottom pivoted to the bucket to swing inwardly and outwardly to closed and open positions, a swinging lever element fulcrumed on the bucket and having a handle portion arranged at the top of the bucket when the door sections are closed, links pivotally connected directly with the lever element and door sections at such points to cause both door sections to open when the lever element is moved downward and to close when the lever element is moved upward, and a latch pivotally mounted on the bucket at the top thereof and arranged in the path of and adapted to be antomatically engaged by the handle portion of the lever element and provided with a stop for engaging with the bucket to sup port it in such position.

6. A bucket open at its top and bottom, door sections for the open bottom pivoted to the bucket to swing inwardly and outwardly to closed and open positions, a swinging lever element fulcrumed on the bucket and having a handle portion arranged at the top of the bucket when the door sections are closed, links pivotally connected directly with the lever element and door sections at such points to cause both door sections to open when the lever element is moved downward and to close when the lever element is moved upward, and a latch pivotally mounted on the bucket at the top thereof and arranged in the-path of and adapted to be automatically engaged by the handle portion of the lever element and provided with a depending lug for engaging with the bucket to support the latch in position for engaging the lever element, said latch being arranged to swing backwardly against the bucket to an operative position.

7 A bucket having door sections, a swinging lever element composed of a pair of levers fulcrumed on the bucket at opposite sides thereof and having long and short arms, the long arm extending upwardly to the top of the bucket when the door sections are closed, and a transverse handle bar connecting the upper end of the long arms of the levers and spaced from the bucket at the top thereof when the door sections are in their closed position, links pivotally connected with the short arms of the levers and with the door sect-ions at such points to cause the door sections to open simultaneously when the long arms of the levers swing downward and to close when the long arms are moved upward, and a latch for locking the door sections in their closed position.

8. A bucket having door sections, a swinging lever element composed of a pair of levers fulcrumed on the bucket at opposite sides thereof and having long and short arms, the long arm extending upwardly to the top of the bucket when the door sections are closed, and a transverse handle bar connecting the upper end of the long arms of the lovers and spaced from the bucket at the top thereof when the door sections are in their closed position, links pivotally connected with the short arms of the levers and with the door sect-ions at such points to cause the door sections to open simultaneously when the long arms of the levers swing downward and to close when the long arms are moved upward, and an automatic latch projecting from the top of the bucket and engaging the handle bar of the lever element for locking the door sections in their closed position.

9. A bucket having door sections for closing the outlet opening thereof, said door sections including vertically-disposed side plates pivoted to the outside of the bucket at the opposite sides thereof, said plates having their bottom edges turned outwardly forming alined horizontal flanges which extend on both sides of the bottom of the bucket, and are coextensive with the width of the plates.

10. A bucket having door sections composed of side plates pivoted to the bucket and provided at the bottom with horizontal flanges forming feet for supporting the bucket in an upright position, and bottom plates connecting the side plates above the feet.

11. A bucket having door sections composed of side plates pivoted to the bucket and having outwardly extending horizontal bottom flanges and provided with inwardly extending flanges located above the lower edges of the side plates, and bottom plates connecting the side plates and secured to the inwardly extending flanges thereof.

12. A bucket having door sections composed of side plates pivoted to the bucket, and curved bottom plates connecting the side plates and arranged to abut at their inner edges when the door sections are closed, the side plates being beveled or cut away above and below the connecting bottom plates.

In testimony, that I claim the foregoing as my own, I have hereto affixed my signature in the presence of two witnesses this fifth day of October, 1910.

ARTHUR N. DOUD.

Witnesses:

A. L. LAWRENCE, N. G. FERRIS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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