US1415869A - Conveyer - Google Patents

Description

H. J. FISCHER. CONVEYER.

APPLICATION man Juni 23. 1921.

Patented May 16, l1922.

3 SHEETS-SHEET l H. J. FISCHER.

CONVEYER. APPLICATION HLED JUNE 23, 192|.

Patented' May 16, 1922.

3 SHEETS-SHEET 2.

lH. J. FISCHER'.

CONVEYER. APPLICATION man JUNE 23. 1921.

1,41 5 ,869, Patented May 16, 1922.

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i speciiieation.

UNITED `STATES PATENT OFFICE.

HENRY J. FISCHER, Oli BALTIMORE, MARYLAND, ASSGNOR OF ONE-SIXTH TO ROBERT H. HAASE AND ONE-SIXTH TO FREDERICK C. DETTMAR, BOTH. F

BALTIMORE, MARYLAND.

CONVEYER.

To all, fui/1,0m. i1/may concern.:

Ile it known that l, llnivn'i J. Fisoiinn, a citizen of the United States, residing at Pmltiinore city, State ol Maryland, have invented certain new and useful. l'nipronements in Gonveyers,` of which the following is a This invention relates to apparatus Jfor picking up material and conveying the saine to a distant point, and its object isto provide a novel and improved apparatus `of this kind by which it is made possible to readily distribute material over large areas, and also to .till deep trenches, excavations, and the like.

With the object stated in view, the invention consists in a combination and arrangement of elements tobe hereinafter described tightening means; Fig. 4. is an. end view of the parts shown in Fig. 2,' and Fig. 5 is a crosssection on the line 5*-5 of Fig. Q.

Referring speciically to the drawings, the conveying means of the apparatus consist of a series of bucketsl() which are carried by a pair `of parallel and endless drive chains 11. Thebuckets are suspended between the chains, and they are `connected thereto in any approved manner, a pivotal connection being provided so that the buckets may tilt to discharge their contents.

The` apparatus also includes a. suitable trame of skeleton construction, which is composed of end sections 19. and 13, and an intermediate section 14. At the outer extremities oi* the end sections of the frame are guide sprocket Wheels 15 Jfor the chains `1.1,and in order that the` chains may be tightened, the shaft 116 of the sprocket Wheels at the `end of the frame section 1? is mounted in a slidably supported bearing block 17 adjustable by a screw 18 threaded through a` stationary nut 19 and bearing against a slide block 20, between which latter and the hearing block is interposed a coiled spring Q1 Speccation of Letters Patent.

Patented May 16, 1922.

1921. Serial No. 479,745.

direction to tighten the chains. If any looseness in the chains develops, it is necessary only to advance the screw 18, Which advances the slide block 20 to further compress the spring 21, and the latter then advances the block 17 to take up the slack in the chains in an obvious manner.

The end sections 12 and 13 of the frame are pivotally connected to the intermediate section 14 at the points 2Q, so that they may `be swung in a `vertical direction to extend from the intermediate section with a downward incline. Fig. 1 shows the end section 1Q swung down, and the end section 13 extending straight out from` the intermediate section 14:, but this position of the end sec tions maybe reversed, and both el said sections may also be set inclined or to extend straight out from the intermediate section,

according to the nature of the terrain or the character of the Work desired t0 he done by the apparatus.

In Fig. 1 the inclined section .12 is the receiving end and it is shown extending into a trench, Whereas the section 13 extending straight out from the intermediate section 14; is the discharging end, andis shown as discharging over the edge of an embankment.

Any suitable means may be provided for adjusting the end sections 12 and 13 as described Fig. 1 shows hoisting lines 23 Suitably connected to said sections, said lines being operated by drums 24.

The intermediate section 14C is supported by a truck or other suitable traveling support 25,the same carrying the drums 24, and

also the driving means 26 of the chains 11.

In order that the material may be distrib nted over a large area, a means is provided tor varyingthe point of discharge of the `lnickets 10, so that their discharge may take place at any point between the ends of the section This control ot the discharge will new be described.

As pointed out hereinbefore, the buckets 110 are pivotally supported by the chains 11 so that they may tilt to dumping position, and hence by holding the buckets so that they cannot tilt until they reach. the desired point of discharge, and providingr an adjustablebucket-releasing means. it is possible to permit the discharge to take place at any `point along the section` 13 ofthe frame.

tending to constantly urge the latter in a The buckets l0 are so pivoted tothe. chains 3.10

1.1 that they are unbalanced and have a nor mal tendency to tiltv to dumping position with a forward motion, and hence a means must be provided for preventing such tilting movement until the desired point of discharge is reached. rlhis means conslsts of a pair of chains 27-ruun1ng parallel to the path taken by the buckets, and positioned to be engaged by the rear ends thereof. At the point of discharge, the chains 27 are lead away from the buckets, and the latter now whereby the chains 27 are lead away fromV being free of said chains automatically tilt and dump their contents. The means the 'buckets are clearly shown in Figs. 2 and 5.A The sides of the frame section 13 carry rails 28 on which are mounted slides 29 carrying vertically spaced guide pulleys 3() and 3 1. The slides 29 are connected by a cross member 32 to move as one.v At the same level v as the pulleys 30 and 31, are guide pulleys 32 crank 35.

4chains 27 in a vertical direction away from lthe buckets 10, and when the latter reach the and 33 over whieh'the chains 27 also pass, said pulleys 32 and 33 being supported by the frame `section 13. The slides 29 are operated by screws 34 to change their position in the direction of the length of the frame section 13, these screws being operated through a suitable gearing from a hand The guide pulleys 30v and 31 lead the gap, they are no longer held in carrying position, but are free to tilt to dumping position, as clearly shown in Fig. 2. The pulleys 33 are positioned to lead the chains 27 back to bucket-engaging position and when the buckets reach the samethey are swung back to carrying position and pass in this position over the sprocket wheel 15 at the extremity of thefrarne section 13, vand then pass to the upperY run ofthe apparatus back to the receiving end at'the extremity of the frame section 12 where they pass over the sprocket wheel 15 at this end and then to the lower 'run. The chains 27 run parallel to the drive chain 11 and close. enough to thebuc'kets so that they may be engaged by the rear ends V ofthe latter, except where the hereinbefore described gap occurs, and also at the receivingl end of the apparatus, at which latter are two guide pulleys 36 for spacing the chains 27 at this point from the buckets so as not to `section-12. Intermediate its ends, lat the upper' run, 'thel chains27 pass over drive sprocketl wheels 37 Aobtaining power 'from the .s-111@ Source jas lthe drive chJainSll, it being understood that the two nets of chains are driven at thc sa me rate of speed so that there is no relative sliding movement between the buckets 10 and the chains 27. lli* the frame section- 12 is set horizontal similar to the -fraine section 13, it will be .necessary to lower the bottom guide pulley 36 to bring the chains 27 lower down for holding the lnickets 1() in proper carrying` position.

The sides of the frame sections may be provided with guide rails 3S for rollers 39 carried by the pivotal connections of the buckets 10 with the chains 11. The shaft 16 is preferably supported by two bearing blocks 17 mounted on rails i0 carried by the sides of the frame section 13. At the extremity of the frame section 13, the chains 27 pass over sprocket wheels L11 carried by the shaft 16, said chains being therefore capable of beine tightened by the same tightener means as that of the chains 11.

I claim:

1. A conveying apparatus comprising an endless driving element, pivoted buckets carried by said element and unbalanced to have a normal tendency to tilt to dumping position, a restraining element ruiming parallel to the path of the buckets and engageable thereby to prevent tilting thereof to dumping position, said element having a portion which is spaced from the buckets a distance to clear the same and permit tilting, and means for changing the position of said spaced portion in the direction of the length of the apparatus.

2. A conveying apparatus comprising an endless driving element, pivoted buckets carried by said element and unbalanced to have a normal tendency to tilt to dumping position. a restraining element running parallel to the path of the buckets, and engageable thereby to prevent tilting thereof to dumping position, said element having a portion which is spaced from the buckets a distance to clear the same and permit tilting, and another spaced portion to permit tilting of the buckets at the receiving end of the apparatus to receiving position, and means for changing the position of the first-mentioned spaced portion in the direction of the length of the apparatus.

3. A conveying apparatus comprising an `endless driving element, pivoted buckets ea rried by said element and unbalanced to have a normal tendency to tilt to dumping position, and a flexible restraining element driven parallel to the path of the buckets and engageable thereby to prevent tilting thereof. said element having a portion which is spaced from the buckets a distance to clear the saine and permit tilting.

4. A conveying apparatus comprising an endless driving element, pivoted buckets carried by said element and unbalanced to have a normal tendency to tilt to dumping position, and a exible restinininer element driven parallel to the path of tlicbuckets and engageable thereby to prevent tiltingr thereo'li, said. element havin g a portion which is spaced :troni the bnclcets a distance to clear the same and perinit tilting, and another spaced portion to permit tilting ot the buckets at the receiving endA of the apparatus to receiving position.

A conveying apparatus comprising an endless driving element, pivoted buckets carried by said element and, unbalanced to have a normal tendency to tilt to dumping posi.- tion, a flexible restraining elenlent driven parallel to the pat-h oi' the buckets and en gageable thereby to prevent tilting` thereof, said element having a portion which is spaced from the buckets a dista nee to clear the same and permit tilting, and means for changing the position cil? said spaced portion in the d rection oil" the length oit the apijiaratus.

6. conveying` apparatus comprising an endless driving element, pivoted buckets carried by said element and unbalanced to have a nei-mal tendency to tilt to dumping position, a H exilivle restraining element driven parallel to the path oi" the buckets and ennaneable thereby to prevent tilting' thereof, i

said element having a portion which spaced from the buckets a distance to clear the saine and permit tilting', and another spaced portion to permit tilting` oit the buckets at the receiving end. ot the apparatus to receiving;- position, and means tor changing the position et the irstmeutioned spaced portion in the direction el? the length of the apparatus.

In testimony whereeil l a'liii; my si gnature.

HENRY J. FISCHER.

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