US1422687A - Apparatus for conveying and delivering material - Google Patents

Description

D. FRASERI S. SHAFER, JR.,YAND C. W. LEVALLEY.- H. P. LEVALLEY AND wlscoNslN TRUST COMPANY, ExEcuTons o.F-c. w. LEvALLEY. DEc'D.

APPARATUS FOR CONVEYING AND DELIVERING'IVIAT'ERIAL. APILICAIION FILED JAN-6,1920. I 4 $422,681 Patented July 11, 1922.

S, SHAFER H. P. LEVALLEY AND wlscoNsxN TRUST co D. FRASER,

APPARATUS 'FOR CONVEYING AND DELIVE APFLICAHUN FILED JAN.6, I9

Patented July M, 1922.

2 SHEETS-SHEET 2v.

DOIU'ALB FRASER AND SAMUEL SHAFER, JR., OF MILWAUKEE, AND CHRISTOPHER W'.

LEVAL'LEY, DECEASED. LATE OF MELXXAUKEE. WISCONSIN, .BY HELEN P. LEVAL- LEY, OF MILWAUKEE, IYU'ISCONSIN, AND IFISCONSIN TRUST COMPANY, A CORPO- 'BATION 0F hIILl/VAUKEE,

WISCONSIN,

EKLC''ITORS, ASSIGNORS TO CHAIN BELT COMPANY, 0F MILW'AUKEE, VISCONSEN, A CORPORATION OF VJ'ISCONSIN.

inaaeea.

Application filed January 6, 1920.

To all whom t may concern:

Be it known that DONALD FRASER :and SAMUEL SHAFER, Jr., both citizens of the United States, residing at Milwaukee, in the county of Milwaukee and State of Wisconsin, and Cnnrs'rornn W. LEVALLEY, deceased, late a citizen of the United States, and a resident of Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in Apparatus for Conveying and Delivering Material, of which the following is a specification.

rrIhis invention relates to apparatus for conveying and delivering material, and has been designed with especial reference to receiving: and conveying concrete from a mixing machine, and de ivering it directly from the transporting bucket or other receptacle, at the bottom of a deep hole, such as the excavation for a concrete pile or a deep foundation. It has been dicovered that when concrete is poured from the sur'- face of the ground into a deep hole, there is a tendency for the several ingredients forming the concrete mixture to separate more or less, with the result that the delivered material does not have that homogeneity7 which is most desirable; and one of the objects of the invention is to overcome this objection.

In the accompanying drawings- Figure 1 is a side elevation of an apparatus embodying the invention;

Fig. 2 is an end view of the apparatus, parts being in transverse vertical section;

Fig. 3 is a side elevation, drawn on a larger scale than Fig. 1, and showing parts of the boom and bucket and the carriage and associated parts bv which the bucket is supported from the boom and by which the movements and operation of the latter are controlled.

Fig. a is an end view of the parts illustrated in Fig. 8, the boomand traversing cable being in cross section.

Fig. 5 is a longitudinal sectional view of the parts illustrated in Fig. 1, the bucket being omitted.

In such drawings a portion only of a concrete mixing machine is represented, this being designated 2. 3 indicates the Specification of Letters Patent.

Patented July 11, 13.22.

Serial No. 349,777.

framework located near the discharge end of such machine. In a bracket 4 supported by the said framework, is mounted the vertical pivot or bearing for a boom 5 that constitutes the track or way along which travels a trolley or carriage 6 from which is suspended the vbucket 7 or other receptacle for receiving and transporting the mixed concrete, which is delivered thereto from the mixing machine through a spout 8. The trolley is caused to traverse the boom by a chain belt or cable 9 that is suitably connected with the carriage and is driven through mechanism 10, connected with the prime motor through intermediate mechanism not necessary here to describe, and under the control of the attendant operating the machine.

The parts thus far described, in their general features, may be of any usual or preferred construction.

The bucket is provided with a pair of ears 11 in which is mounted a shaft 12, that carries a sheave 13. The cable 15 by which the bucket is raised and lowered, engages with the sheave 13 and with other sheaves 14, 14, mounted in the trolley or carriage 6 and between which the sheave 13 is located.

16, 16 represent hooks supported upon a shaft 17 mounted in the frame of the trolley, the hooks being arranged to engage with the shaft 12 and serving as the means through which the bucket is connected with and suspended from the trolley. Springs 19 act upon the hooks 16 and tend to force them into position to engage with the shaft 12. An arm 18 extends from the shaft 17 in position to engage with an adjustable stop 2O that may be secured to the boom in any dcsired position. The engagement of the'arm 1S with this stop, as the trolley moves out ward along the boom, rocks the shaft 17 anc. causes the hooks 16 to disengage the shaft 12, whereupon the bucket is suspended only by the cable 15 and may then be lowered by letting` out the cable. One end of this cable is made fast to some suitable part of the apparatus, as to the boom at the point 21, whence it extends forward over one of the she-aves 141- in the trolley; thence under the sheave 13 carried by the bucket; thence over .the other sheave 14 in the trolley, and forward to pulleys 22 at the forward end of the boom; and thence rearward along` the boom and past guide pulleys 23 to a winding drum supported in the framework 3, to which the cable is secured. rThis drum is mounted upon a shaft 25 in drivingl connertion, through suitable gearing` 26, with the motor, and controlled by clutch and brake mechanism 27 that may be operated by the attendant. 1t will thus be seen that whenever the bucket is released from the hooks 16 that unite it with the trolley, it may be lowered, as into ahole or excavation such as indicated directly below the bucket in Fig. 1, by the attendant allowing,- the cable to run off from the drum vThe bucket is provided with hinged doors 28 through which the material it contains may be discharged. These doors are arranged to open outwardly and are connected by links 29 with a lock link 30, which .is pivoted, at 35, to an arm 31 that is secured fast to shaft 32 supported in the ears 11 of the bucket. The relation of the pivots of the rlinks 29 and 30 to the axis of the shaft 32 .on the bucket, by which arrangement the doors are held supported in open condition fordischarging the contents of the bucket. The doors may be closed manually, and 'to permit this the shaft 32 is provided with a handle 34. The mechanism employed for releasing' the doors and permitting` them'to be opened when the bucket reachesthepoint of discharge, vas for instance the bottom ofthe hole or excavation, will now be described.

36 indicates a ratchet wheelv secured to the shaft 12. With this ratchet wheel engages apawl 37 pivot-ally united at 38 with the arm 31 that is secured to the shaft and to which the lock link 30 is pivotally connected. A spring` 39 bearing' upon the pawl tends to hold it in yieldingr engagement withthe ratchet wheel 36. The pawl is provided with a toe 41 that, by engagement with a part of the arm 31, operates as a stop to prevent the pawl being.r thrown too far by the spring' 39. An adjustable stop 40 mounted in a bearing carried by one of the side frame pieces of the carriage 6 is also arranged to control the position of the pawl. i

42, 42 indicate the skirts of the trolley 6. These overhang the upper ends of the bucket ears 11, which are preferably bifurcated to form arms 44, 44, that are adapted to enter recesses 43 in the skirts of the vtrolley when the bucket is drawnup and engaged byl the lhooks 16, and prevent rocking or vibration of the bucket as it traverses the boom.

The operation of the apparatus is as follows: The trolley is run inward, or toward the concrete mixing` machine, along the boom until the bucket is brought into position to receive material through the spout 8. After the buckethas been charged it is run out along the boom to a position above the excavation into which the charge is tofb'e delivered. Here the trolley is brought to rest at the same time that the contact arm 18 engages with the 'adjustable stop 2O and the hooks 16 are moved to disengage the shaft 12 and release the bucket from the trolley, except as it is held suspended by the cable 15. The cable is now allowed 'to run ofi' from the drum 24 and the bucket lowered into the excavation. As it does so the sheave 13 and ratchet wheel 36 rotate in the direc-tion of the arrow a, Fig. 5.` rIn turning` in this direction.y the ratchet moves freely past the pawl 87. Then the ,bucket has descended to the desired place of discharge. the attendant connects the drum '24 with the motor and starts the winding,` of the cable upon the drum, which reverses the direction of rotation of the sheave 18 and the ratchet wheel 36.

The teeth of the ratchet wheel now engage With the pawl 37, which is caused to travel forward` with the wheel, moving' bodily therewith and operating vto turn the arm 31 about its axis which is the center ofthe shaft 32. This movement also swings the pivotal connection 35 uniting the" lock 'link 30 tothe arm 31, until the toggle lock for the doors of the bucket is broken, when they will be instantly forced open by the weight of the contents of the bucket,rwhich are thereupon discharged, such discharge takingplace `at the vertical 'position occupied by the bucket when the direction of movement of the cable 15 was reversed, whatever that position be with reference to the supporting track of the carriage 6. rThe movement of the link 30 and of the arm 31,

due to the opening` of the doors, carries the pawl 37 entirely out of engagement with the ratchet wheel 36, `and it remains in this position until restored to engagement with the ratchet wheel, as by turning the handle 34 to relock vthe doors.

That we claim is:

1. The combination of a track, a carriage arranged to traverse the track, a bucket capable of being` dischargedsuspended from the carriage, means for causing the carriage to traverse the track, means for controlling the raising and lowerin 4 of the bucket relative to the carriage, an means for 'causing the dischargefof the bucket while suspended,

place of deposit, operated by the means that control the raising and lowering thereoi.

2. The combination-of a track, a carriage arranged to traverse the track, a bucket capable of being discharged supported `from' the carriage, and adapted to be raised and lowered 'relative to the carriage, means for causing the .carriage to traverse the track,

a cable for supporting the bucket, and by which its raising and lowering are controlled, and means for causing the discharge ofthe bucket while suspended by the cable arranged to be operated by the cable when its direction of movement is reverse-d.

3. The combination of a track, a carriage arranged to traverse the track, bucket. capable of being discharged supported from the carriage, means for holding the bucket in condition to contain its load, means for causing the carriage to traverse the track, a cable for supporting the bucket, means for controlling the movements of the cable to raise and lower the bucket, a sheave about which the cable passes movable up and down with the bucket, and means operated from said sheave for causing the discharge of the bucket when the cable is moved to raise the same.

4. The combination of a bucket capable of being'discharged, a cable for supporting the bucket, means for controlling the 4movements of the cable in order to raise, and lower the bucket, a rotatable sheave carried by the bucket with which the cable engages and which is turned thereby as the cable is moved to raise or to lower the bucket, and means for causing the discharge of the bucket operated from the said sheave when *it is turned in one direction.

The combination of a bucket capable of being discharged, a cable for supporting the bucket, means for controlling the movements of the cable in order to raise and lower the bucket, a rotatable sheave carried by the bucket with which the cable engages, and means for causing the discharge of the bucket when the sheave is irst turned on the movement of the cable to raise the bucket.

6. The combination of a bucket provided `with doors that control its discharge, means for holding the doors closed, a cable for supporting the bucket, means for controlling the movements of the cable in order to raise and lower the bucket, a rotatable sheave carried by the bucket with which the cable engages, and means operated from the said sheave when it is turned in one direction for releasing the said doors and permitting the bucket to discharge.

7. The combination of a bucket, doors by which the discharge of the bucket is controlled, a cable for supporting the bucket,

means controlling the movements ofsthe cable in order to raise and lower the bucket, a

rotatable sheave carried bythe bucket with which 'the cable engages, a ratchet wheel turning with the sheave, means including a pa'wl engaging withthe said ratchet wheel 'for releasing the doors and permitting the bucket to discharge, operated when the sheaveturns in one direction. i

. 8. The combination of a track, a carriage arranged to traverse the track, a bucket supported from the carriage, means for causing the carriage to traverse the track, hinged doors controlling the discharge of the bucket, a sheave carried by the bucket, a ratchet wheel turning with the sheave, a toggle lock for holding the doors closed, a spring pawl engaging with the ratchet wheel arranged to break the lock when the ratchet wheel turns in one direction, and a cable for raising and lowering the bucket passing about the said sheave.

9. The combination of a track, a carriage arranged to traverse the track, a bucket capable of being discharged, hooks pivotally supported by the carriage for connecting the bucket therewith, means for causing the carriage to traverse the track, an adjustable stop adapted to be secured to the track at any desired point, arranged to throw 0H the hooks and release the bucket from the carriage as the latter comes to the place where the stop is secured, a cable for supporting the bucket when released Jfrom the said hooks, means for controlling the movements of the cable for raising and lowering the bucket, and means Ator causing the discharge of the bucket arranged to be operated when the direction of movement of the cable is reversed to change from the lowering to the raising movement ofthe bucket.

l0. In an apparatus for delivering material, the combination of a track, a carriage arranged to traverse the track, a bucket capable of being discharged, means for maintaining the bucket in condition to contain its load, a cable for suspending the bucket and by which it is raised and lowered, means :tor uniting the bucket with the carriage during transit, means for automatically releasing the bucket from the said uniting means when the carriage reaches the desired point along the track, means for controlling the movements of the cable to raise or lower the bucket, and means arranged to cause the bucket to discharge its load while suspended by the cable, such means being operated by movement of the cable in the direction to raise the bucket.

1l. The combination of a track, a carriage adapted to traverse the track, a bucket capable of being discharged suspended from the carriage, means for controlling the movements of the carriage along the track, means for releasing the bucket Jfrom the carriage to "permitt 'to descend, mezmsfor controlling 'the revising and lowering of lthe bucket, and

Ymeans for vcausing the dschargeof the :bucket 'when ltjbegms to rlse. v '12. The comblnatlon'of a track, t Vcetrrmge -itrranged t0 traverse the track having skirts l 'in the lower edges of which are formed recesses, and a bucket suspended from the citrrlage provrded Wlth bllfurcated ears, the `{2L-rms of Whlch are :arranged to engage Wlth the recesses in the vskirts of the carriage,

whereby the swinging of the bucket relative to the carriage is prevented.v

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