US1085548A - Concrete-mixing machine. - Google Patents

Description

E. L. ORIDGE.

CONCRETE MIXING MACHINE.

APPLIGETIOHFILBQJAN,191s.

Patented Jan. 27, i914.

6 SHEETSSHEBT l,

E. L. GRIDGE.

CONCRETE MIXING MACHINEA APPLICATION FILED JAN. 7, 1913.

Patented Jan, 27, 1914.

6 SHEETS--SHEET u E. L. CRIDGE.

CONCRETE MIXING MACHINE.

APPLICATION FILED JAN. 7, 1913.

19085548. Patented Jan. 27, 1914.

6 SHEETS-SHEET 4.

ATTRIVEYS @afm-M A B' WM@ E. I. CRIDGE.

CONCRETE MIXING MACHINE.

APPLIGATION FILED JAVN. 7. 1913,

1,085,548, v "PatentedJa11-.27,1914.

6 SHEETS-SHEET 5.

- WITNESSES (Wfl/fon ,EDMuND Lommer; n

E. L. CRIDGB.

GONGRETE MIXING MACHINE.

APPLICATION FILED JAN. 7, 191s.

Patented Jan. 2'?, 1914.

WIM/8858 INVENTO? @Mmm EDMUND i.. cmDGEl 1g v i 0mg I 5y W @f I Ammers nnmnnn n onine-n, or Passaro, new rnnsnr,

creaba.

ASSIGNGR TO STEED MACHEN! G9., @E

PSSAIC, NEW JERSEY, CGEPORATIG'N 0F JERSEY.

condenan-armpits Macerata.

Losetas.

Specication of Letters Patent. Application led January 7, 1913. Serial No. 7t0,588.

To all whom it may concern Be 1t known that I, EDMUND L. Carnon,

a citizen of the United States, and a resi dent of Passaic, in the county of Passaic and State of New Jersey, have invented a nevir and Improved Concrete-Mixing Machine,of which the following is a full, clear, and exact description.

This invention relates to improvements in concrete mixing machines of the revolving type, and has for an object to provide a machine of this ,type which may be used as a batch type sdcalled, or may be used as a f continuous type so-called, for mixing the concrete in predetermined quantities, or in a continuous stream, as may be desired -for any particular purpose.

A further."object of the invention is to provide an improved structure in, which the discharge andas 'rovided lwith a cap or plete, which' may e easily applied and removed so as to 'entirely close the cylinder, or to entirel openr the same, whereby either the bate ty ve. or continuous type of machine may `e presented still further object of the invention is to :provide a machine 'in which the discharge.

end has a cap` covering the entire end, and

a lurality of mixing.' blades connectedtoa geber for ormin -a cylinder construction 'whichgmay be bo ily rammed at'any time ,after the cap has' been removed, by reason of the fact that theend .is ,entirely open, thus facilitating' the repairin of the inner part of the machine and o the 'cleaning ln carrying out the-objects of the invention, a rptating cylinder lis provided,4 in..

' 'which'a removable mixer is arranged, the

ends of the c linder being formed so as to @move ivotal y from a position iir'contact withl t e cylinder to a position entirely unf covering the end of the cylinder, whereb A the mixin .blades may be .bodily-remove and the cy inderwashed or repa1red,"as clesired. The discharge end of. the c linder is adapted to be closed by a cap w'hic entirely .covers that end, and which is held in place by a 'spring-pressed plunger 4operated or held properly under tension by a suitable4 lever mechanism, or iidesired, by other controlling mechanism. At the front or 1n-y take end of the cylinder, is arranged a hop-- per held stationary by av suitable framework, the hopper projecting through the end of the cylinder for a short distance in order to properly deposit the various materials Witlnn the cylinder. Connected to the cylinder at the hopper end, is an elevator or' feeding device, formed as an enlarged drum havingflights or partitions into which is deposited the various matter .to be mixed, and which is elevated and finally dumped or discharged int-o a chute from which it passes by gravity into the cylinder.

A practical embodiment of the invention 'is represented in the accompanying drawra'eeniea aante'meia.

ings forming a part of this speciicatiomin .l

which similar characters of reference indicate corresponding parts in 'all the views.

Figure l is a side view of a mixing machine embodying the features of the invention; Fig.. 2 is a front view of the stru`c-l ture shown in Fig. 1,; Fig. 3 is a longitudinal vertical central section through the Ais a longitudinal yhorizontal sectional view .throughA Fi l, approximately on then/lima.

7J-7, with t e ends or heads in an ope position theshoWing being on a reduced scale/ Referrin to the accompanying dra'wingsf, one' embodiment of the invention is shownl, which maybe variously adjusted so as to be fused'as either a batch type or continuous type of concrete mixer, When used as either of these types of machine, the mechanism such as to be readily opened and taken apart so as'to easily clean the interior of the cylinder,and to have access to all of the parts of the machine without cons-iden able trouble. The idea of opening up the machine, as shown 4in Fig. 7,' for .Washing the same out after stopping'ivoik, is of consider-able importancels the same is easily cleaned-While the cement or concrete mixture is green, but very hard tol clean after the mixture has hardened or set.

p Referring to the accompanying drawingsl by numerals, 1 indicates a base of any desired kind, to which are secured axles 2 and 3, on which are mounted suitable traction wheels. Connected with the base 1, is a framework 4, the same being formed of angle iron, or any other desired material. The upper part of the framework is provided with a plurality vof notches 5, in which cross bars 6 and 7 are fitted, the cross bars 6 and 7 having connected therewith supporting arms 8- and 9, to

. the open position as disclosed in Fig. 3. The

outer end of the chute 10 is formed with slots 93 and 94 for accommodating operating arms or members 95 and 96 connected with the sides 10 and 10 so that these sides may be moved pivotally to the"dotted position shown in Fig. 2, or to an open position, as shown in Fig. 3. By this construction and arrangement material may be allowed to pass through the chute intoand through opening 12 in the end13, or may be prevented from entering this opening. This construction and arrangement is very desirable in connection with the elevator 15 hereinafter fully described, which is adapted to elevate and feed material 'to the chute.

When it is desired to use the machine as a batch mixer, the sides, 1,0 and 10 are opened or moved to the position shown vmore clearly in Fig. 3, and maintained in the open position untilthe elevator 15 has discharged into the chuteand drum 14 a su'iiicient quantity to make a'complete batch. lVhen this has occurred, thesides 10 and 10 are closed, as shown in dotted lines in Fig. 2, and the rotation of cylinder 14 and elevator 15 is continued, whereupon the batchv in the cylinder or drum 14 will be thorougly mixed in a wet condition, water being supplied from a suitable source, as hereinafter fully described, while the new material being elevated by elevator 15 will be dis.-`

-. charged against the'outside surfaces'of the sides 10 and 10, which 'will cause the material to drop down to` the lower'part of the elevatorand thus become 'mixed while in a dry state thus resultingin al combined Wet mixer and dry mixer. After the first batch has been removed from the drum-orcylinder 14, the-sides-lOland 10- 'are opened and the mixed batchin the elevator is allowed to be discharged into the chuteor hopper v10 until the correct amount has beenl fed into the drum 14. The sides 10 and 10 are paratively ,on the outside -surface'of the elevator for preventing material from moving laterally therefrom.` Arranged on the inner periph- Losetas then closed and the action repeated so that by the use of the pivotally mounted sides 10 and 10, a machine is produced which will be simultaneously mixing a Wet batch and a dry batch. It will be evident that this will l cause a maximum output from a mixer as the dry bat/ch When mixed requires only a short mixing 'after being placed in drum 14 and supplied with water, as the principal mixing has already taken place. It will also be noted that-this construction allows a continuous operation of the machine but a miX- ing in separate compartments or places nf the dry b'atch or the Wet batch.

In order that material may be fed into the hopper 10, an elevator 15 is provided which is rigidly securedby bolts, or any otherdesired means,"to the end plate 13 so as to'y rotate with the drum 14. The elevator 15 isA lformed in the shape of a drum, having an' opening 16 of substantially the same size as the opening 12 in the head or end 13, and

with asecond opening 17 of ample size to accommodate the hopper l0, whereby a comery of the elevator 15, are-a plurality of nights 19, which are adapted tocatchmatter ydumped into the elevator. and raise the same lto a point above the hopper 10 and discharge the matter by gravityinto the hopper 10. v These flights may beset at a tangent, or y radially with respect to the periphery of the.' felevator. In the base 1, preferably at the :lowermost point of the elevator 15,7 is a -bracket 20, formed with an extension 21,

and a raised flange 22. The extension 21 is `adaptedto receive the edge of a Wheelbarrow of any kind, in order that when the con- -tents of the Wheelbarrow are being dumped intothe elevator, the flange 22 will prevent the Wheelbarrow from slipping .into'the elevator.l If desired, a bracin screw or pin 23,

of any kind, may be provi ed for steadying the bracket 20, the samebeing -drl'ven into I the earth, or into a wood foundation, orany other desired structure. From this it Will` be -seen thatthe elevator may be supplied with material easily and Without any complicated,

system oftransporta'tion or guiding chute.

.The elevator v15 is adapted ,to rotate with the drum `l4so thatafter. material has been dumped into the elevator, the same is autor matically carried upwardly l and dumped into the hopper 10, froml which it gravitates low annular flange 18` is provided Y into the interior of'thefcylinder 14. By reaf son 4of the bracket 20, matter may be easily dumpedinto the elevator While theJ lsame is running-, froml Wheelba'rrows ,andl :other ve hicles.

Connected with the` drum 14 are bearing bands or- tracks 24 and 25, the same being y rigidly secured to the drum in any desired manner, as for instance by rivets. These bands or tracks rest upon bearin rollers 26, the bearing' rollers 26 being pre erably connected in pairs by suitable shafts 27 and 30, these shafts being mounted on suitable bearn ing brackets secured to the base member 1. Itigidly secured to the cylinder 14 by any desired means, as for instance, rivets, `is a gear ring 23 designed to mesh With'a pinion 29, the pinion 29 being rigidly secured to shaft 30 which carries a sprocket Wheel 31, designed to receive power through a suitable chain from any desired source. It Will-bc evident that other means could be connected to lshaft 30 for driving the same Without departing from the spirit of the invention.

W'heii itis desired to move to an open pol sition the ends of the cylinder, it is also desirable to lock the cylinder against rotation. In order to accomplish this, eyelet members 32 and 33 Fig. 5), are rigidly secured to the drum 14 by any desired means, as for instance, rivets, so as to receive the hook end ofv pivotally mounted bars 34 and 35, these bars being pivotally connected with the base 41 in any desired manner. A turnbuclrle structure 36 is provided for each of these bars so as to properly adjust the saine, in order to rigidly hold the drum against move-` inent,.a's shown in Fig. 4. This is very necessary as it is desired to swing the ends of the drum to an open position, las shown in .I*`ig. 7, and ifthe drum Was not rigidly held in' lace, the same would rotate so that the members would'be at the lowermost point, instead of at one side. In connection with the opening or the end members, it will be observed that, end 13, to which elevator 15 is connected, is provided with ears 37 which coact .with ears 38 yconnected by rivets or4 other suitable means, With the drum 1`4, a suitable bolt-39 acting vas a pintle for con- .,necting these ears together. A second pair "of ears are cininected with the end 13,

namely, ears 40*,'fi^fhich-co-act with ears 41, connected with the cylinder or drum 14, the ears 40 and 41 accommodating a pintle'f42, Whichpreferably has a pin`43 lextending therethrough, in. which is arranged.l an aper` .ture for receiving the bolt of a lock 44, so

as to positively ,lock the pin 43 against dis- Y engagement and against being removed by `bearing bandfor track 24. Connected with thering 4 5 are a plurality of ears 46 and 47,'

v an unauthorized person. Y The ears 40 anc? are arranged pref- "erably on the oppositeside ofthe cylinder to 41 and associated devices,

the ears 37 and 38,- so as to. lock the end 13 and associated parts in their closed position.

At the rear en'd, or discharge endijoffthe cylinder 14, is aring 45, merging into the the same being arranged on opposite sides of the cylinder in a similar manner'to the Way the ears at the opposite end ofthe cylinder are positioned. The ears 4G and 47 co-act With-suitable cars 48 and 49, connected With a swinging ring 50. The ears 'l-7 and43 are connected by a suitable pintle 51, so that the ring 50 may be properly hinged in place, and ears 46 and 49 are connected by a suitable pintle 52 so as to lock ring 50 in a closed position. A slot is provided in the lower end Vof pintle A52 for receiving a Cotter pin 53, the cotter pin having an aperture in the end thereof designed to receive thebolt of a lock 54 so as to lockthe cotter pin in place and thus prevent an accidental disengagement of pintle 52, or an unauthorized removal of pintle 52. 'Ilie pintles 39 and 51 are preferably held in place by suitable nuts, whichmay, if desired, be locked against having the ends of the Vpintles upset orv riveted.l

be swung to one side, as shown in Fig. 7,

it a cap 55 and associatedlnechanism, which rocatory through a spider-62, the outer end' bein formed with an aperture 63' through Whic the bar or lever 64 passes.A Preferably on which maybe integraler may be removable.

properl in place, it will the pac (ing ring 66 is provided for forming a tight oint. made ofleather, a soft metal, or other matefthe invention.

three being shown, which are bolted to suit; able upriglits 67, the uprights 67 being in `l turn bolted to ring 50 so that the spider 62 will move with the ring.

v By this construcntion and arrangement, the cap -is resilieiitly held in place, though mounted to svving Whring-50. In order to properly,

hold the cap 55 in place, a plurality of studs The ring 50 when unlocked, is adapted is adapted to hold the cap tightly against' ring 50 when the ring 50 is closed. The cap 55 is provided centrally With an opening-in which is arranged a socket member 56 hav?, ing a chamber57 for the piston 58,' 'and a piston 58 arel air to escapee piston. The rod 6l extends outwardly and rial, Without departing from the spirit oi"v The spider 62 may be Jrovided with .any desired number of egs,

removal by and in this movement the ring carries with atv ico

.llt

the end of the rod 6l', a head 'isprovided, f

In' connection Withholding the cap 55?# be observed that' .11e This packing ring may be 58 are rigidly secured to the cap and slidiiiglyfit in suitable apertures in the legs' of 'the spider 62, so that the only independent movement of the cap 55 is either toward or from the spider 62.

'In order to properly liold the lever 61 in place, and to cause tlie saine to exert a ioper tension against the bar 61, the same 1s pivotal-.ly mounted at 69 (Fig. 5) on bar, 70, forming part of the framework 4. The end of bary 64 opposite the -pivotal member 69, is pivotally connected With link 71, which Ain turn is pivotally connected at 72 to a reciprocating rod 7 3, held properly in place by suitable guides 7-1, mounted on the longitudinal bar 7 5, forming part of the framework 4. The end of rod 78 opposite the pivotal point 72, is 'provided with a rack 76 which may be formed integral with the rod,

or may be formed separate, and secured Ithereto. Mesliing with the rack 7 6 is a pinion 77 carried by a shaft 78 niounted 'in' suitable bearings 79 connected with bar 75.

.The shaft 78 has rigidly secured thereto a.

l tlius tightly clamp hand 4Wheel 80 which when operated will move the bar 73. When the bar 7 3 is moved 11i one direction, the lever 64 is actuatedfor causin rod 61 to compress spring 60, and the `cap against the packing ring 66. 7Vhen the bar 73 is moved j in an opposite direction, the spring is released so that the ca 55 may move away [from the packing 66 it theI releasing of the spring has been of sufficient extent. By reason of the piston 58, a continued movement of bar 73 will causethe lever 64: to

. pull cap 55 longitudinally away `from thc drum 14, the extreme movement being the distance 'between the. cap 55 and the spider G2. When it is desired to open the end of tlie'drum 11 with which cap 55 is associated,

y levert-34 is disconnected from link 71, and

the pivotal connection 69 is removed, and

-lthen bar 64 removed from contact with rod 61. The pintle 52 is the`n removed, after which ring 50 and associated parts may be swung to the open position, as shown in Fig.

' 7. As clearly shown in Fig. A7', when both ends of the cylinder are open, 0r when one 4'end -is open, the cylinder will be overhalanced and would naturally rotate until the ends were in the lowerniost position, if means were not provided for preventing such rotation, these means heilig the meinbers`32 and 33,` and the links or 'rods 34 Arranged within the drum 14, are a plurality of mixing blades 81 and 82, the blades 81 actino` to work the material in onedircction, and the blades 82 acting to work the material in an opposite direction, these two sets of blades being connected at their ends by a plurality of strips 83, riveted or other- Wise secured in place. The strips 88 are preferably connected by rivets or otherwise, to rings 84, which properly liold t-he blades spaced apart in a proper position for acting as mixing blades. In order `to cause the blades to rotate'ivith drum 111, a bolt 85 `moven'ient of tlie ends of the'blades whereby may be bodily removed without being taken apart when the ring 50, cap 55, and associated 'parts are swung tofthe open position shown in Fig. 7tliis removal taking place without molesting the bolt or rod 85.

In using the mixen-'it will be evident that the mixture must be wet when mixed either as a batcli' or.continuously. In order to provide a proper quantity of Water, a

so that the material passing ,through the hopper 10 from above will not .clog'up or Having thus described `my invention, I claim. as new and desireto secure by Letters Patent-:

1. lira-mixing machine of the class described, a rotatable cylinder, means for iality of sets of mixing blades arranged in said cylinder, bars' rigidly secured to said sets of mixing blades for connecting the saine together, a ring arranged near eacli end of said sets of mixing blades for holdproperly spaced in said cylinder, and means cylinder'.

to saidcylinder, the hinging of said end to said cylinder permitting an opening of said cylinder for its full diameter when said end has been moved to an open position, and an elevator rigidly connected with said hinged end and adapted to be moved therewith.

'3. In a mixing machine of the class deto the discharge end of Said cylinder having an opening therein, acap for closing the opening in said ring, andmeans 4for resili- -ently holding said cap against said ring.

4. In a mixing 'machine of the class deis arranged so as to extend from one side of the cylinder to the other, in the pat-h of interfere with the free viowingof the water.

ing the same properly spaced apartgand" 2. Ina mixing machinev of the class de. scribed, a rotating cyiinder, an end' hingedl scribed, a rotatablecylinder, a riiig'hinged' the bladesare forced to rotate.` As the bolt 8 5 is positioned near the ends of the blades, and not between `the rings 84, the bladesl feeding material into'said cylinder, a plufor looselyfconiiecting saidblades with said ria scribed, a rotatable cylinder, a cap forclos- 'Y portingsaid cap,

mama-ss ling the discharge end of .said cylinder,

l the action lofsa'id means.

5. In a' mixing machine of the class described, a'rotatable cylinder, a ring hinged to the discharge end thereof, a framework structure rigidly secured to said ring, a cap adapted to close the opening in said ring, means projecting'from said cap and engaging 'said framework for slidingly supment in one direction.

hinged tothe discharge end of the cylinder,

' a reciprocating cap arranged vin said end closure, and alevermechanisin for moving said ,cap in either of twoy directions.

7. In a mixing machine of the class described, a rotatable cylinder, a closure for the discharge end of.' the cylinder, said closure comprising a ring hinged to said cylinder, a framework rigidly secured to said ring, said framework being formed with a i .plurality of apertures, a cap adapted. to

close the opening inl'said ring,

of guiding studs extending from said cap ,into certain of the apertures in a plurality said 4framework, an .operating rod extending through one of the apertnres'of said framework and engaging said cap,

and a spring tro-acting with one end of said scribed, a rotatable cylinder, a closure structure for the discharge end of the cylinder,

' said closure structure inclndin'g'a cap resiliently held'implace and a bar for loperating 'said cap, a pivotallymounted lever engag-v ing said bar for actuating the same, anda reciprocatingrod connected with said lever for ac tnating the lever, a rack associated,- with one end ot-said bar,-

af pinion ymeshing withs'aid rachandhand ac tnated means for4 through theciiute. i

10. ln a mixing machine yof-theclass de'- operating Vsaid pinion. v x

9. In a mixing'machine 'of the classi'ide#4 mixing drum, Ja dry` batch miXingjdI-tum, a' chiitel for receiving niategial from said drybatchmixi'ng drum and lguiding `the same to .said wet batch mix;V ing diimi,1and means for moving the sides of said chiite so as to preve'iitmaterialpassing .-iciibed, a. rotating cylinder or drum, anelef and means for causing said ,cap tov resiliently resist a slidimrmove- 6. n a. mixing machine of the class' de `scribed, a rotatable cylinder, a, closure vator rigidly secured to said drum and rotatable therewith, a chute having one end extending into said drum and with the body part arrangedbelow part of said elevator so as to receive material from said elevator and guide the same to said cylinder or drum, and means for supplying-water to said drum, said chiite being formed with a discharge portion for directing-material into said cyliiider or drum, and a pair of hinged side members adapted to move together for covering said discharge portion in order to prevent` material from said elevator entering said cylinder or drum whereby the material in said elevator and the material in said drum will be mixed separately.

l1. ln a mixing machine'of the'class de? scribed, a. wet batch mixingV compartment, an elevating and dry batch mixing compartment, a guiding member for guiding material from said second mentioned compartment to said first mentioned compartment, and pivotally mounted covering means for covering s'aid guiding means in order to complete the mixing ofthe material in said compertinents separately.

l2. In a. mixing machine of the class described, a rotatable cylinder, means for supplying material to said cylinder, and a niixing device loosely fitting said cylinder, said mixing device being formed so as to present a substantially cylindrical structure provided with end supporting members, and a plurality of spirally arranged knives, the knives being arranged in an inner and outer series, the knives of one series being inclined in one direction and the knives of the opposite series being inclined in an opposite direction whereby the material in said 'cylinder is directed back and forth previous to its discharge.

13. ln a mixing machine ol the class described, a cylinder, means for feeding ma-` terial to the cylinder to be mixed, and miX- ing device arranged in said cylinder, said mixing device comprising a ring siipporting member, and anouter series of spirally arranged blades andan inner series of spirally arrangedblades, said blades extending siibstantially longitudinally or said cylinder and directing the material in the cylinder in op posits directions.'

1st. ln'amixing machine Aof the Vclass de- '.scribed, a rotatable cylinder, a'closn'refconnected to the discharge end el said cylinder and adapted to rotate with the cylindenand -a cap arranged on said closure and adapted Vto rotate with the closure, a pressure mem- .ber for causing said cap to engage said closure, said pressure. member being adapted tojbe moved backand --from rotating withthe rotation ot' said'cap, and means acting onsaid pressure member forth but prevented for moving the same in either of two directions.

15. In a mixing machine of the class de- 'soribed,'a rotatable cylinder, a closure con- 'nected to the discharge end of the cylinder, a

reciprocating cap arranged in said closure, a lever mechanism for moving said cap in either of two directions, ,a reciprocating member for moving said lever; the reciprocating member being formed with a rack, and a manually operating gear meshing with 10 4said rack for moving the same, whereby said lever is moved back and forth for actuating said cap.

In testimony whereof I have Signed my name to this specification in the presence of two subscribing Witnesses.

EDMUND L. CRlDGll Witnesses:

WALTER Kir,

SARA D. BOFFARD.

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