US998763A - Conveyer for concrete-mixing machines. - Google Patents

Description

C. M. FASSETT.

CONVERTER Foa GONCEETB MIXING MACHINES.

APPLICATION funn JULY11909.

' Patente July 25, 1911 4 SHEETS- SHEET 1.

auvents a e .Mg

fltfozueqa Gl M. PASSBTT.

GONVEYBR PGB CONCRETE MIXING MACHINES.

` APPLICATION FILED JLYIQJQOQ. n 998,763. Patented July 25, 1911.

4 SHEETS-SHEET 2.

Straf/mma Witnesses K C. M. mssBTT.

CGEWYBR POB CONCRETE MIXING MACHINES.

APPLICATION FILED JULY 19,1909.

,rammed July 25, 1911,.-

4 SHEETS-SHEET 8.

WMO@ 240,627

@mi/meow v after/udg:

C. M. PASSBTT.

. GONVBYBR FOB CONCRETE MIXING MACHINES. `APPLIOA'I 0N lILED JULY 19, 1909.`

Patgntd July 25, 1911 MEETS-SHEET 4.

I'and l do 'declare the following to be a full,

CLAYTON M. FASSETT, CF BROOKINGS, SOUTH DAKOTA.

- CONVEYER EUR CONCRETE-MIXING MACHINES.

Specification of Letters Patent.

rai-vinca .nav 25,1911.

Application filed July 19; 1G03. Serial No. 558.256.

To all whom it may concern:

lle it known that l, CLAY-'rox M. Fassnrr. a citizen of the United States, residing at Brookings. in the county of Brookings and State of South Dakota` have invented certainl new a'nd useful improvements in Conveyersl for Concrete-Mixing Machines;

clear, and exacty description ol the inv'eu tion, such as will enable others skilled in the art to which it appertains to make and use the same. v

This invention relates to an huproved conveyor for concrete mixing machines.

The object-of the invention is to' provide a machine of this character having means arranged thereon for conveying gra vel and cement and discharging the saine in, proper quantities to the mixing device ofthe machine. V Y

lliith'the foregoing and other objects in view, the invention consists of certain novel features of constructiolncombination and. ar angcment of parts as will be more fully. described and particularly pointed out 'in the appended claims.

In the' accompanying drawings: Figure 1 is a side elevation of a machine equipped with these improve1nent:-; Fig. a front end elevation showing the cement and gravel elevators arranged directly in frontof the machine; Fig. 3 is a vertical longitudinal sectional view through the machine; Fig. t is a horizontal sectional view of the same taken above the operating gears and shafts. I

Referring more particularly to the drawings, 1 denotes the frame of the machine, the front end of which is mounted on steering wheels 2 and the rear end of which is mounted on supporting and traction wheels 3. Arranged in the machine is a central longitudinally disposed inclined mixing' troligh 4 which is connected with and operated b v any suitable driving mechanism.

In the rear end plate f the trough -t is formed a discharge opening 13 with which is connected a discharge spout lfl by means of which the concrete or the finishing' material may he discharged from the trough.

Mounted on a vsuitable base 19 on the upper portion of the frame l, is a combined cement hopper and measuring device '20 o f 1 anv suitable construction. t

'Suitablv mounted on the frame l ofthe f machine above the concrete mixing trough' i elevator.

is a water tank 29 with which is connected a pump 30, the piston rod of which is connected to the operating` mechanism of the machine by anglv suitable means wherel l A )y water ma;v bepumped trom a water wagon or other receptacle into the tank. rlhe tank '25, is provided with a discharge valve Ell which is adapted to hc opened to discharge the proper quantitv of water into the mixing trough 4. i

Suitabiy arranged in the frame l of the machine above the operating mechaliisni at the front end of the machine is a turn-table 32 which is adapted to support a gravel and cement elevating mechanism 'o v means of which gravel and cement ma)r heelevated and discharged, respectively, into the mixing trough and cement hopper. The `elevating mechanism comprises a hoot' 532-3 having a curved or substantiall v semi-circular bottom. The hoot 33 is divided bj. a transverse partition to forma gravel receptacle 34 andy ay cement receptacle (Sec Figs. 2 and with the gravel receptacle is connected a `gravel elevator frame 3G havingarrangcd therein a gravel 'elevator or conveyor consisting of endless chains 3T which travel` over suitable sprocket wheels arranged'on shafts at the upper and lower end oftgthe,

ele ator frame 3G. AThe lower shaft'i vided on one end with a 'sprocketigear3S by means of which the shaft and clevitor:

mechanism are operated, said gear being suitably connected with the driving mechanism hereinafter described. To the chains 3T are connected gravel elevator buckets 39, said buckets being open at' their hack 'or rear side and are adapted to he drawn upwardlj( over a guide plate 40 arranged in the elevator frame, said plate forming the hack of the buckets when they are engaged therewith in elevating the' gravel. At a suitable position in theelevator frame, the guiding or backing plate l0 is cut, away to form a space which is covered by a screen 41 ever which the buckets of gravel are drawn when being elevated and through whichthe sand taken up with the gravel. is discharged. rlhe sand thusseparated from the gravel by the screen 41is caught upon a suitable delectng hoard or chute 42 and conveyed thereby to a discharge spout 43 arranged in a suitable position on the frame of the Slidahly mounted between 'thel side plates of the elevator frame below the sand .screen is an adjustable eut-oil` plate 43' 3,5. spout 50 arranged in position` to dihargc i the cement `into the by means of which the size of the screen opening is regulated when desired. The plate 43"is provided on one edge witlra rack bar 44 with which is engaged a spur pinion 45 secured to a crank shaft 41.1 arranged inione side of the elevator -rarne whereby said pinion may be turned to raise or lower the cut-olf plate, thus regulating the size of the serecn'surface.

T o the front outer side of the portion of the boot 33 which forms the gravel receptacle is secured a gravel scoop 47 which is adapted to be forced into the piles of gravel which have been deposited along the line of travel oflthe machine thereby scoopiog up the gravel into the boot from which it is taken up by the elevator buckets. The scoop is used only when the elevator mechanism projects from the forward end of the machine. vWhenthc elevating mechanism is arranged on either side of the machine, it is necessary to shovel the gravel into the boot by hand. When the elevating-mechanism is arranged on either side of the machine and the gravel shovcled into the boot, I provide a gate or scoop closing plate 48 which is adapted to be removably engaged with the scoop or outer portion of the boot to prevent the gravel shoveled therein from falling out before being taken up by the eevatcr buckets.

Extending upwardly from the cement receptacle of the boot isa cement Velevator frame 49 which is provided with a discharge cement hopper 29. In 'the casing or frame-49 is arranged an endless cement conveyer or elevator 51 by m'eans of which cement which is placed into the cement receptacle 35 of the boot is ele vated and discharged into the cement hopper from which it is discharged in predetermined quantities into the mixing trough in the manner hereinbefore described. The conveyor l51 is operated by the same shaft by which the gravel elevator is operated, said shaft being revolved by means of the sprocket wheel 38 hereinbeore described.

Suitably mouned on a platform arranged in the front portion of the machine is a motor which is here shown, and which is preferably in the form of a gasolene engine 52. The engine shaft is operatively connected by means of suitable sprocket chains, shafts, gears and rods with the mixer, pump, hopper and conveyer for actuating them at proper intervals.

.Vhen the machine is employed for mixing the finishing material the traction or propelling mechanism is thrown out of gear with the main drive shaft by means of suit able shifting levers and clutch devices, so that :the driving mechanism will be employed for operating only the mixing auger and the cement and gravel elevating mechanism. When the gravel elevating mechanism is employed in connection with the forming of the finishing material, sand is shoveled into the section of the boot with which this elevator is connected and the sand thus conveyed and discharged into the mixing trough. The cement is elevated and conveyed to the cement hopper and from thence discharged into the mixing trough in the samemanner as described in connection with the forming of the rough concrete material. After snilicient finishing material has been mixed up and discharged into the trough the parts are a ain thrownv into operation for propelling t ie machine,

lln the operation of the machine, it will be understood that the buckets ofthe gravel elevating mechanism are employed as measures for carrying the gravel to the mixing trough and as each bucket passes the cement hopper and discharges its load of gravel in the trough, it will trip suitable levers of the -cement measuring or cut-od plates of the hopper nd operate said plates to discharge the cement from the measuring pocket into the mixing trough. The quantity of cement thus discharged with each bucket of gravel may be determined by increasing or decreasy ing the size of the pockets by any suitable means. Y

In order that the gravel and cement elesoA smk

vators muy he raised to permit the machine 'I to be moved from place to lace and again lowered to an operative position, rovide a suitable raising and lowering mec anis'm comprising a pair of parallel track members 174, said track members being bent at right angles at their upper ends to form attaching bars 175, thc ends of which arebolted or otherwise suitably secured to the measuring hopper 20, as shown. The lower ends of the track members are also bentrearwardly and are connected together at their rear ends adjacent to the lower turntable 32 by a cross bar 176. Arranged in the cross bar 176 adjacent to its upper ed e, is a bearinfr bolt 177 on which is revoluly mounted a dbuble flanged roller 178 which engages andis adapted to travel on the lowcr'turn-table 3Q. The outer end of the bearing bolt 177 is engaged with a rearwardly projecting brace 179,. the side bars of which are-cennected by a transversely disposed barlSO. Also secured in the cross bar 176 is a bearing bolt 181, on which is revolubly mounted a lower turn-table engaging rol er 182, said roller having a flanged inner end, as shown. The track bars are connected together on their outer sides by a rectangular brace 183,

said brace preventing the spreading or lat- A eral movement of the track members.

On the opposite sides of the gravel and cement elevators are arranged upper and lower pairs of flanged guide rollers 184 which engage the track members 174, as

shown. The rollers 184 are revolubly mounted on bearing bolts 185 which are secured in attaching plates 186, said plates bcof the elevators. ing bolts 185 are connected together across the outer side of the track members by connecting 'bars 187 whereby Ysaid bolts are braced and the guide rollers held in opera- 5 tive engagement with the track members.

means of the rollers 184, the elevators .are slidahlyconnected to the tracks and may be raised and lowered thereon by means of a raising'and lowering mechanism now to l: described The raising and lowering mechanism is here sshmvn :and preferably consists of a minding shaft 18S which is mounted in suit- :eble -beaaringaA on the rearwardly extending lower pon-.titans of lthe track members and to -said shaft is :connected one -end of a raising and lowering cable 189, which extends upwardly and around a guide pulley 190 mounted in .a suita'lde bracket on the upper rearwardlg.7 progieeting arms 175 of the track members and from said pulley-extends downwardly and has its ends secured to the sides of the gravel elevator in any suitable manner. 0n one .end of the .shalt 15S, is {ixcd a ratchet. gear 191 with which is adapt ed to be engaged a locking pavvl 92 b v means of which the shaft held against Y retrograde movement while the cable is being wound up to raise the elevators and by v means of which the elevators are held in a raised position. On the end of the shaft 18S is mounted a crank handle 193' by means of which the shaft is operated.

By means of the raisingr and lowering mechanism just described, the gravel and cement elevators may be raised toa Sullicient height to permit; the machine to travel from one place to another wi .hout danger of thelower ends of the elevators Striking obstructitms.

From the foregoing description; takenin connection with the accompanying drawings, the construction and operation of the.

invention will be readily understood without. requiring a more extended explanation.

Various changes in the form, proportion andthe minor details of construction may be resorted to without. departing trom the principle or sacrificing any of the advantage-s of the invention. as defined in the appended claims.

I claim as my invention:

1. In a'maehineof the character described. a collecting and elevating mechanism, a

incastri-ing couveyef in said elevating mecha nism wher 'v the collected material is elevated an:l d scharged in measured quantities, an elevator supporting turn-table, elevator raising and lowering tracks, means to rotatably connect the lower ends of said 998,763 i A 'a' l tracks with said turntable, guide rollers mounted on the opposite sides of said ele* vator mechanism and adapted to operatively engage said tracks, and vmeans arranged on said tracks and connected with the elevator mechanism wherelnv the latter ma)r bc raised and lowered. v

`:he combination of a collecting and elevating mechanism, a measuring conveyor in iid elevating mechanism whereby the collected material is elevated and` discharged in measured quantities, an elevator supporting gturn-table, elevator raising and lowering tracks` and means to rotatably connect the g louer endsof said tracks with said turntable. f

ln a machine .of the class described, the combination of a gravel collecting and elevating mechanism, a conveyer in said ele- I vating` mechanism whereby the collected material iselevatedand diseharged, an elevator supporting turn-table, elevator raising and lowering' tracks, means to rotatablyv conneet the lower ends of said tracks with said turn-talle, ,and means arranged on said tracks connected with the elevator mechanism whereby the latter may be raised and owered. Y

4. 'in amaehine of the character described,

elevating mechanism, a gravel conveycr in said elevating mechanism, whereby the gravel is elevated and discharged in measumd quantities, an elevator supporting t turn-table arranged on the forward end of the machine, elevator raising and lowering tracks, and upper and lower turn-table engaging rollers revolubli7 mounted on the lower ends of said tacks .vherebg,y the latter are rotatably connected with said turntable.

5. In a machine of the character described, tae combination of a gravel collecting and elevating mechanism, a gravel measuring conveyer in said elevating mechanism whereb)v the gravel is elevated and discharged in measured quantities. an elevator supporting turn-table arranged on the forward end of the machine, elevator raising and lowering tracks, upper and lower turnthe, lower ends ot' said tracks whereby the latter are rotatablyv co'nnected with said turntable. the upper roller having guide flanges at its opposite ends, the lower roller at its mounted in the lower portion of said tracks, and means connected with said shaft whereby said elevating mechanism is raised and lowered.

6. ln a machine of the character described, a collecting and elevating mechanism, -a

anism whereby the collected material is elethe combimition of -a gravel collecting and inner end only, a winding shaft revolublyY measuring convever in said elevating mech= ln a machine of the character described, y

llt!

table engaging' rollers revolubl \r mounted on elevator Imechanism, a winding shaft rev- 'olubly mounted 1n the lower portion of send tracks, an elevating cable connected twsaid shaft whereby said elevating mechanism i',

raised and lowered by said winding shaft, a

pawlv and ratchet holding mechanism '.on- 15 nected with said shaft, and a crunk lm ndle whereby the latter is elevated.A

In testimony whereof I have herfunto set mcyv hand in presence' of two sibscribing Witnesses.' Y I CLAYTON M. ASSETT.

Witnesses: i

WALLACE E. PURDY, GEO. P. HALL.

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