US1296201A - Hoisting and conveying apparatus. - Google Patents

Description

1. McMYLER.

HOISTING AND CONVEYING APPARATUS APPLICATION FILED MAY l2. I910. RENEWED JULY 26.1918- 1 ,296,201 Patented Mar. 4, 1919.

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CEZQQZMV Pu- J. M'cMYLER.

HOISTING AND CONVEYING'APPAHATUS.

APPLICATION FILED MAY \2. 19'10. RENEWED JULY 2a, 1918.

1 ,296,201 Patented Mar. 4, 1919.

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HOISTING AND CONVEYING APPARATUS.

APPLICATION FILED MAY 12, I810. RENEWED JULY 26,1918.

1,296,201. Patented M314, 1919.

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sA'rns PATENT onFIoE.

JOHN MGMYLER,'OF CLEVELAND, OHIO, ASSIGNOB, BY MESNE ASSIGNMENTS, TO THE MOMYLER INTERSTATE'COMPANY, OFBEDFOBID, OHIO, A CORPORATION 0]? OHIO.

HOISTING Ann CONVEYING APPARATUS.

Application filed May 12, 1910, Serial 110,560,772. Renewed July 26, 1918. Seria1-No..246,937.

To all whom it may concern Be it known that I, JOHN. McMYLER, a citizen of the United States, residing ,at Cleveland, in'the county of Ouyahogaand State of Ohio, have invented a certain new i and useful Improvement in Holsting and.

Conveying Apparatus, of which the followingis a full, clear, and exact description. I V This invention relates to hoisting and con 1 veying apparatus and particularly to apparatus for unloading ore or coal boats.

One of the objects of my invention isto provide an unloadingapparatus which is less expensive to construct and install, and f more efficient and satisfactory in operation than the apparatus employed heretofore.

One of themore specific objects is to do away with the necessity for moving the. bucket along a track or trolley to the point Where thecontents are dumpedor dropped,

and also to avoid the necessity for raising the bucket to a considerable height above the boat and above the car or conveyer adapted to receive the contents of the bucket.

tails of construction and combinations and arrangements of parts which will be described in the specification and set forth in the appended claims.

Although my invention is susceptible of considerable modification, I have shown one embodiment which is very effective for unloading boats, and in'the drawing Figure 1 is a side elevation of a conveying apparatus mounted on an ore dock and showing the manner in which the ore is removed from the boat which is shown in cross section; Fig. 2 is an enlarged side view of a portion of the apparatus, the bucket being in position 'to be opened to dump its contents into a'conve er in the form of a car which 1s shown. by dotted lines; Fig. 3 is a top plan VIGW-V bucket head.

I of the same; Fig. 4: an enlarged side elevation of a portion of the bucket separated slightly from the bucket head which is carried at the outer end of a movable boom; Fig. 5 is an end-view of the same; Fig. 6 is a perspective view of a In the figures of the drawing, 10 represents a dock, adjacent which is a boat 11 which, in thiscase, is adaptedto be unload subject matter of my invention.

be moved a gauntree 14:, on wiich the unloading mechanism is supported, thegauntree being movable so that the unloading.

mechanism may be moved lengthwise of the boat from hatch to hatch. Between the rails, 12 and 13 of the gauntree are one or,

more tracks 15 along which are adapted to Specification'of Letters Patent. Patnted'Mar, 4, 1919,

7 portion of v the V ed by the conveyingapparatus forming the On the dock are rails 12 and 13 alon which may move cars16 which may receive the contents of the'boat, the gauntree having suitable chutes ,17 whichwill direct the material into the cars 16. In this case, I have shown movably mounted on the gauntree, a frame 18 which may be constructed of structural steel,.this frame being supported on rollers or wheels 19 so that it may be moved across the gauntree so as to cause the outer end of the frame to project different distances over the boat in order that the bucket may be length. V

One of the novel features of my invention is the mechanism for supporting and operating the hoisting and conveying bucket. In accordance'with my invention, the bucket is mounted on a boom which is pivotally supported by spaced arms, which them parallel, for reasons to be explained, andthat one be somewhat longer than th other so that the boom will not move parallel to itself or in parallelism. Although if delowered into a hatch at any pointalong its sired, the boom may be supported by the arms in a manner such that the bucket may be operated from either end of the frame or bridge supporting the same, or from one side thereof," I havehere shown the boom supporting arms pivoted at fixed points on the frame. I r

The bucket whichis designated as a whole by the reference character 20, may be of any suitable construction, and thisbucket CQPf erates with a head 21 which is rigidly mounted-upon a ,boom 22- wh-ich, in this case is formed of structural members comprising side members 23' and 24, and transverse-or cross members 25 and 26, This boom is supported-by two sets or pairs of arms 27 and 28 which are pivotally connected at their upper 'ends to the side members 23 and 24: of

the boom, and'at their lower ends are pivoted to the base or bottom of-the movableframe 18. The rear set of arms 28 areconnected to the boom near its rear end, and the forward set-of arms 27 are connected'to the boom at a pointbetween the head 21 of the" booinand the rear end of theboom. It will be noted that the rear s'etof arms are somewhat longer than the forward'set, and that while the arms 27 and 28 are nearly parallel, the rear set 28 are-inclined forwardly slightly with respect to the forward set 27. It may be here stated that the boom is adapted to be lowered forwardly and downwardly so that the-bucket is ,over the desired part of the hatch, andafter the bucket has or coal,'rearwardly so that, it may be dumped into the chutes 17, or directly ontothe dock,f a pile of the material being shown on the' dock at 291 I prefer 'toiemploy for conveying the material r'ea'rwardly a dump car 30'which may be moved-along'a suitable track 31 extending lengthwise of the frame 18, and substantially the entire length thereof. This car 30 .may be of any suitable construction and may be dumped in any manner, either into the chutes 17 or upon the dock 10. By referring particularly to' Figs. 1 and 2, it will be" noted that the construction and arrangemerit} of the boom supporting members permits the bucket to swing upwardly 'at a height such that it will clear the car' 30 nicely, although the bucket will not be raised to an unneces'saryheight over the car, and after the bucket has been emptied, it may be swung outwardly, the outward and also the inward swinging movements over the car 30'be1ng almost horizontal. The chieffadvantage of having one set of arms 27 shorter than the other set 28 is that the bucket will the latter. Thus, when the boom and bucket not be raised to an unnecessary height above the car 30. By inclining the rear setof arms at the proper angle with respect tothe'forward set, when the bucket is inits most rearward position the rear set are inclining forwardly slightly and therefore there will be a tendency forthe boom tojmove forwardly, and little orno; effort will be required to start it in its forward movement.

I. prefer that the'bucket and its supporting members, including the boom 22 and piv oted arms 27 and 28 be partially counter balanced. This is done by means of one or more counterbalancingwe'ights 32"whi'ch are adapted to swing along the sides of the frame 18, as shown clearly n Fig. 8, These weights are supported-on arms m levers"33 which'are pivoted intermediate their ends to" the sides ofthe-frame 18,-and'at their upper ends are'connec'ted by arms or links 3 1to the rear set of} boom supporting arms 28, the

arms 84: being pivoted to the weightisupporting levels 33 and'being pivoted to the boom supporting. arms 28, near the upper ends of are swung; forwardly, the counterbalancing we1ghts are lifted, and when the boom is The weight and leverage of the cOunterbal ancing'weights' 32 are such that whenthe bucket'is empty there-will always be an ex 7 cess of turning eifort'in the'boom and the parts movable therewith over 'thatof the 'weights. This arrangement not only permits the boom to be swung easily, but it prevents the boom belng lowered faster than is desired. vVhenthe bucket is in position .for dumpingQor in the position shownin Figs.

1 and 2, the weights are 'moved'slightly beyond the vertical line passing through the pivotal centers of the levers 33. The advantage of having the weights swing'downwardly and outwardly: beyond the vertical swung.inwardly,-the weights-are lowered.

or lowermost position is that after the,

bucket has been emptied, the weights by their tendency to swing to. their lowermosti positions willassist the boom and its con- 1 nected parts in being started on the forward and downward movement. "Furthermore,

the vweightsby tending to move the boom forwardly prevent the bucket being lowered V with respect to the head 21 when the-closing and hoisting cables are slackened and the bucket is openedby the'opening cables. 7

The bucket'20 which, as here shown is of the clam shell type may be of any construction, but in this case, itis adapted to be r and boththe bucket and boom'are adapted to'be raised andlowered or swung downv wardly and forwardly, and upwardly and rearwardly by mechanism including a pair of cables 35 and'36 which are connected to the proper parts of, the bucket, and pass upwardly over a pair of sheaves 37fan'd 38 raised and loweredwith respect to the boom,

I supported at the ing part of the on opposite sides of the head-2-1 ofthe bucket,- thence'rearwardly overa pair. of

sheaves 39 and 40 mounted-upon a shaft 41' top of the frame 18, thence over a pairofsheaves42 and-43 mounted on a shaft 44 supported at the top of the frame 18, but rearwardlyl of;thefshaft-41, thence around a hoisting and lowering drum .45,'the' twocables passing about the drum in the same, direction. 7

any suitable engine or motive device 47, theshaft 46 and supported in any suitable manner on'the frame18. s

The mechanism or parts employed for opening the bucket will, of course, depend upon the construction of the bucket, but in this case, I employ two bucket opening ropes 4:8 and I on' a projecting portio'n'of ahead 21', (see passes about suitable Tsheaves carried by the bucket, thence passes upwardly elongated slot 52 in the plate 51- between a pair of guide sheaves 53, and is thence-"- mounted upon a. suitwound upon a drum 54 able shaft carried -:by the head 21.' The opening cable-49 is wound about a drum 55 which is' movable-with the drum 54, andwhich is in this case one half the. diameter of the latter, thenc ethe cable 49 passes upwardly and rearwardly'about a sheave-56 mounted upon the shaft 41 previouslyre- 5 thence rearwardly about as sheave the shaft 44, and is thence 58 also mounted on the ferred to, 57 mounted upon wound about a drum shaft 46which supports the drum 45.

in the operation ofthe'unloading mechanism, so far described, theboom will swing forwardly and downwardly by its own weight, the drums 45 and 58 being allowed to turn so as to pay out the'cables 35, 36 and V one side with a projecting portion on which the cable 48 is-dead-ended, and is provided 49." The boom will 'continue to move. forwardly and raised until it engages the head 21, thence the boom is drawn upwardly and:

rearwardly by these same cables, soit'h-at th'e bucket will clear the car 30 and swlng over the same, as before stated. When the bucket is directly over and only a short distance above the car 30, the boom will be brought to a stop and the'bucket can then 5' This-drum 45 is mounted on the s'haft46 whichmay be operated by motive device 47,beingv The former is dead-ended at 50 plate 51v formi Fig. 4.) thence through an t downwardly to a position such as shown by dotted'lines'in Figj 1, or'un'til-Y the boom or some part. connected therewith, p

which the cable 48 passes. This plate 51'has;

Then the bucket which at this time is open is lowered with and bucketwill again be moved forwardly and downwardly, and this-action will berepeated until the car 30' is filled, after which ittcan be'drawn rearwardly by any suitable mechanism, and its contents dumped into any one of the ichutes 17 or onto the dock attherear of .the. ygauntree; .The drums 45 and 58 which are utilized for opening and, closing the bucketiand shifting the bucket andboom may be operated through suitable clutchesand brakes which neednot be described 1 l s a As before stated-,1- have provided timprovedmeans for: turning the bucket after it has been lowered into the hatch,-so thatyit may reach'the :or'e or coal below thehatch combings,-and the mechanism and construc'= tion whereby this is accomplished,- will now be described: Thehead 21 is formed by a pair of parallel side plates59 and '60 and by across plate 61 which extends between and is riveted or otherwise secured-to the side plates. 7 These side plates carry the sheaves" 87 and 38 for the-hoisting and closing-cables and support the drums 54 and 55, which receive the opening cables, these parts having been previously described; 'Also the side plates 59 and 60 are rigidly secured tothe forward end ofthe boom 22.1 Swiveled to the center of the cross plate 61 of the head 21 is a'substantially horizontal sheave or drum 62' which is adapted to be turned with reference tofthe plate 61 and to twist the cables supporting the bucket when the latter is low'- ered with 'respectto the head so as to turn the bucket in the hatch o f the boat. Secured l to the lower side of this sheave '62'is the plate 51 which has been previously"referred to,-f

and which, as beforestated', is providedon on the opposite side with a projecting por tioh having an elongated-slot 52 through seeuredflto its lower side a hell or dome shaped member 63 which is-spherica-lly con cave on its lower side and is adapted to re--= i ceive, when. the bucket 20 is raised with respect to the head 21', a dome shaped member 7 64Yhaving a spherically convex "upper surface; Thus, when the bucket 20 is raised and 1120' the domeshaped member 64 enters into and engages the similarly shaped member 63, the bucket will be centered on: the head 21 and fastened to or'dead-endedlon the sheave 62 and pass about the same: in opposite direcwill be held in the proper position relative 2 has partially woundthereon' two turning cable's65" and '66 which are T tively whereby when said arms are swung ward movement and at the start of the inthe boom and said member supported by it 7 ward movement 10 will be moved outwardly and downwardly In testimony whereof, I hereunto affix my to receiving position and upwardly and in slgnature in the presence of two witnesses.

wardly to delivering position, and a counter- JOHN MOMYLER. weight connected to one of the moving parts Witnesses:

and serving to assist the movement of the H. R; SULLIVAN,

boom and arms both at the start of the out- 7 A. F. KWIs.

Copies of this patent may be obtained for five cents each; by addressing the commissioner of Patents,

' Washington, D. 0.

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