US2223443A - Mixing drum - Google Patents

Description

Dec. 3, 1 I A w CUTLER 2,223,443

' MIXING DRUM Filed Oct. 20, 1957 2 Sheets-Sheet 1 /O//Q W aZZer,

f igadw ATTORNEY- Dec. 3, 1940. A. w. CUTLE R MIXING DRUM Filed Oct; 20, 1937 2 Sheets-Sheet 2 ATTO RN EY.

' partment 28 with a receiving chute .40 which ex mounted upon a fulcrum M fixed to a sector l 5 Patented Dec. 3, 1940 t r TES ATENT 'GFFEC llHXING DRUM Andy W. Cutler, St. Joseph, Mo. Application October 20, 1937, Serial No. 170,044

. l Claims. (Cl; 259-164) My invention relates to mixing drums which to render the blades more effective in agitating may be employed to advantage'in mixing various and mixing the substances. The blade ends it materials, such, for instance, as those employed adjoin the partition 32 and are arranged in paral-- for raising depressions in concrete highways to lelism with the axis of the drum to prevent them their original level by being forced intosuch defrom forcing the mixture into the second compressions through holes out in the concrete slab. partment 30 through the opening 3 prematurely. The mixing device is preferably rendered port- The parallel ends 48 are assisted in retaining the able by mounting it upon a traveling truck carrymixture in the first compartment 23 by means of ing appropriate equipment for forcing the plastic an inclined deflector chute 56 having its upper mixture into the depressions as the plastic mixend extending into the second compartment 363 10 ture is discharged from the mixing'drum. and its lower end projecting into the first com- In order that the invention may be fully underpartment 28, so that any part of the mixture carstood, reference will now be had to the accomried upby the blades 46 will fall upon said de- UNITED panying drawings, in which fiector chute 50 and be discharged thereby away Fig. 1 is a side elevation of the machine. from the opening 34. I 15 Fig. 2 is a broken vertical longitudinal section After the mixing operation has continued in of the mixing drum and associated parts. the compartment 28 a sufficient period the plastic Referring in detail to the different parts, 2 mixture is transferred to compartment 3E! with a designates a suitable traveling truck provided transfer chute 52 connected at its upper end to with oppositely-disposed antifriction rollers 4 the upper part of the deflector chute 5t from upon which the mixing drum 6 is rotatably which it inclines in the opposite direction so that mounted. The mixing drum 6 is reinforced with when the chutes 50 and 52 are moved backward bands 8 which travel upon the rollers 4 and to the dotted line position, Fig. 2, the mixture cooperate with the flanges 5 of the latter in'recarried upward by the blades 46 will fall upon straining the drum from longitudinal movement. the chute 52 and be directed thereby into the Flanged rollers 9, engaging the bands 8, coopercompartment 39 where the substances are furate with the rollers 4 in holding the drum 6 in ther mixed by spiral-like blades 53 similar in place. The mixing drum 5 is driven by an exshape and function to the blades 4%.

ternal ring gear l2 fixed thereon and intermesh The chutes 55 and 52 are fixed to a carrier 56 3o ing with a pinion M fixed upon a shaft 16 pro-' comprising a pair of bars 56 which extend longivided at its forward end with a pulley l8 driven tudinally through the openings in the drum 6 and from a pulley 20 by means of an endless belt 22. are pivotally connected at their rear ends to the The drive pulley 29 is fixed upon a shaft 25 which lower ends of hangers 58, the upper ends of which may be connected by any suitable clutch means are mounted upon a shaft 6!! carried by a frame F to the shaft of an engine 26 mounted upon the 62 fixed upon the truck 2. The forward ends of forward portion of the truck 2. the bars 56 arepivotally connected to the lower Referring now more particularly to Fig. 2 it ends of a pair of hangers 64 fixed at their upper will be seen that the interior of the drum 6 is ends upon an inner shaft t6 mounted in bearings divided into compartments 28 and 30 by a parti- 51 at upper forward portion of the frame B2 The tion 32 having a central opening 34 in axial alineshaft 65 is provided at one end with a fixed crank ment with openings 3% and 38 in the respective 58' pivotally secured at its free end to the upper ends of the drum. Dirt taken from the roadside, end of a connecting-rod Ill which is pivotally s or adjacent territory, is fed into the first comcured at its lower end to a hand-lever l2 freely tends through the opening 38. To provide a batch mounted upon the truck 2. With the foregoing of plastic mixture water is added from a tank 42 arrangement it is apparent that when the handhaving a valve controlled discharge pipe 44 exlever 12 is in the position shown by Fig. 1, the tending into the first compartment 28 through chutes 58 and 52 will be held in the full line posithe opening 36. A suitable number of spiral-like tion shown by Fig. 2, and when said hand-lever blades 453 are fixed within the first compartment 72 is swung to the left, Fig. 1, the chutes 5E! and 28 to thoroughly mix the substances therein and 52 will be moved to the dotted line position, Fig. 2. move the mixture towards the opening 34 in the While the substances are being further, mixed partition 32, Each alternate blade 46 is spaced inthe compartment 3!] they are prevented by the 55 inwardly from the inner surface of the drum 6 parallel ends 55 of the blades 53 and a deflector 55 chute it from being carried outward prematurely through the opening 38. As shown by Fig. 2 the parallel ends 55 of the blades 53 adjoin the discharge end of the drum. The chute H5 is some- What like the chute 56 but arranged to operate independently of the latter. As shown by Fig. 2, the chute i6 inclines downwardly from the outside to the inside of the compartment 3& and is attached at its upper end to a tiltable discharge chute l3 operably connected at its lower end by a hinge (it to a mud hopper 82 secured to the frame 62 at a point below and outside of the opening 3.8. The chute 16 is further connected to the h partments, a chute for transferring a mixture discharge chute 18 by one or more braces 84.

The tilting action of the discharge chute 18 i is controlled by a pair of links 85 having pin-andslot connections 88 with the upper end of said discharge chute l8 and fixed at their upper ends to an outer or tubular shaft 90 freely mounted upon the inner shaft Eii and provided at one end with a fixed crank 93, Fig 1, pivotally secured at its free end to a connecting rod 94 pivoted at its lower end to a hand-lever 96 which may be freely mounted upon the fulcrum M or another one in axial alinement therewith. The foregoing arrangement of the hand-levers l2 and 96 places them close together and within easy reach ofthe operator. From the foregoing it is obvious that when the hand-lever 96 is in the position shown by Fig. 1, the chute 76 will occupy the active position disclosed by Fig. 2, but when said hand-lever S6 is shifted to the left" the discharge chute '18 will be swung to an inclined position with its upper end Within the opening 38 to receive the plastic mixture in order to discharge it into the hopper 82.

As the batch is discharged into hopper 82 it gravitates into one or more barrels 93, from which it is forced to the point of use by plungers I08 through pipes I05, valves Hi2, a manifold HM, and a hose Hi6.

Briefly the operation is as follows: Soil thrown into chute 40 is fed thereby into the first compartment 28 of drum 6 into which water is admitted from the tank 42 through the valve-controlled pipe i i. After partially mixing the soil and water the mixture is transferred to the second compartment 3i? by shifting the chutes 50 and 52 to the dotted line position, Fig. 2, which operation is accomplished by shifting lever 72 to the left, Fig. 1. On completion of the mixing operation in compartment 30, lever 96 is shifted to the left, Fig. 1, to swing the upper end of discharge chute it into the compartment 30. The chute '18 then discharges the mixture into hopper 82 from which it gravitates into the barrels 98. The plungers I03 force the mixture outwardly through pipes Hit, valves I02, manifold Hi4, and hose HIS the free end of which is inserted in a hole cut through a depression in the concrete beneath which the mixture is forced until the depressed portion of the concrete is raised to its original level.

From the foregoing description taken in connection with the drawings it is apparent that I vhave provided a mixing drum well adapted for the purpose intended, and while I have shown one form of the invention I reserve all rights to such other forms andmodifications thereof asproperly fall within the spirit and scope of the invention as claimed.

Having thus described my invention, What I claim and desire to secure by Letters Patent is:

'1. In a machine of the character described, a rotary mixing drum having inlet and discharge openings and divided into a plurality of compartments, a chute for transferring a mixture from one compartment to another, a carrier extending longitudinally through the drum and to which said chute is fixed, and means arranged exteriorly of the drum for shifting said carrier longitudinally to alternately carry the chute to ac tive and inactive positions.

2. In a machine of the character described, a

rotary mixing drum having inlet and discharge openings and divided into a plurality of comfrom one compartment to another, a carrier extending longitudinally through the drum and; to which said chute is fixed, a frame associated with the mixing drum, shafts supported by said frame, hangers depending from one of said shafts and operably connected to one end of the carrier, hangers fixed to the other shaft and operably connected to the other end of the carrier, a crank fixed to the last-mentioned shaft to rock the same and thereby effect the movement of the chute to active and inactive positions, and manually controlled means for actuating said crank,

3. In a machine of the character described, a rotary mixing drum having inlet and discharge openings, a partition having an opening and dividing said drum into a receiving and mixing compartment and a mixing and deliverycompartment, spiral-like'blades in the interior of the first compartment adapted to mix substances and feed the mixture towards the partition, said bladeshaving ends adjoining the partition and arranged in parallelism with the axis of the drum to avoid discharging the mixture into'the second compartment, an inclined deflector chute arranged to partially enter the second compartment through the opening in the partition and,

to the second compartment, means for shifting the deflector and delivery chutes so that the upper portion of either may be positioned in the partition opening, and blades in the second compartment adapted to feed the mixture towards the discharge opening of the drum.

4. In a machine of the character described, a rotary mixing drum having inlet and discharge openings, spiral-like blades mounted in said drum and adapted to mix substances and feed the mixture towards the discharge opening, said blades having parallel ends adjoining the end of the drum with the discharge opening and arranged in parallelism with the axis of the drum to avoid discharging the mixture through the discharge opening, an inclined deflector chute in the drum arranged to partially enter the discharge opening and coact with the parallel ends of the blades in retaining the mixture in the drum, a discharge chute mounted adjacent to the discharge opening and adapted to be inclined until its upper end enters the discharge opening to receive the mixture and discharge it from the drum, and independent means for shifting the chutes to active and inactive positions.

ANDY W. CUTLER.

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