US1129102A - Mixer. - Google Patents

Description

W. J. JUDD.

MIXER.

APPLICATION FILED JULY 2, 1909. 1,129,1Q2, Patented Feb 23,1915

4 SHEETS-SHEET 1.

WITNESS E5." 1 1 ATTORNE W. J. JUDD.

MIXER.

APPLIUATION FILED JULY 2, 1909.

1,129,102, Patented Feb. 23, 1915.

4 SHEETS-SHEET 2.

WITNESSES:

W. J. JUDD MIXER.-

APPLIGATION FILED JULY 2. 1909 4 SHEETSSHEET 3.

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Patented Feb. 23, 1915.

W. J. JUDD.

MIXER.

APPLIOATION FILED JULY 2, 1909.

1,1 29, 1 O2. Patented Feb. 23, 1915.

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, the apparatus.

WILLIAM J. J'UZDD, OF NEW YORK, N. Y.

MIXER.

Specification of Letters Patent.

Patented Feb. 23, 19.15.

Application filed July 2, 1909. Serial No. 505,578.

new and useful Improvement in Mixers, of

which the following is a specification.

This invention relates to machines for.

mixing concrete and other materials;

The principal object of the invention is to provide at low cost an effective machine of this character and particularly one that can be charged and discharged without stopping the machine. 7

My improvements are illustrated prefer.- ably in connection with a cubiform mixing barrel. which during the mixing operation carries the material upwardly, and drops it from the top to the bottom of the barrel, thus aiding in the mixing. Within the discharge opening of the barrel I project the small end of a discharge bell, and in said bell I provide a lateral opening which may receive the discharge from said vane, and conduct the same out of the mixer. Relative rotative shifting may be effected between the bell and the drum so that said lateral opening in the bell shall no longer be in communication with said vane, so that the contents of the barrel may continue to mix instead of discharging. I provide simple means for effecting the relative shifting movement of the bell, to bring the lateral opening therein into and out of coiiperation with said vane at will. Y

Other objects and advantages will hereinafter appear.

In the accompanying drawings, Figure l is a sectional elevation of the apparatus taken about axially of the mixing barrel. Fig. 2 is an elevation of the charging end of Fig. 3 is an elevation of the discharging end of the apparatus, showing the discharge bell as shifted to a position to prevent discharge from the barrel during the revolution thereof. Fig. 4 is a similar view showing the discharge bell shifted to a position to receive the discharge from the in 1 terior vane in the barrel; such discharge occurring once in every revolution when said vane is in elevated position. Fig. 5 is a fragment of a stop lever showing the man- 'Fig. 6 is an elevation similar to Fig. 4, but showing means for arresting the discharge bell dur- Within the barrel I provide a vane,

ing the revolution of the barrel to effect a rotative dislocation of the bell, to prevent the same from receiving or'discharging the contents of the barrel. Fig. 7 is a side elevation of the apparatus as seen at Fig. 3. Fig. 8 is a plan of the apparatus with the parts in positions seen at Fig. 3. Fig. 9 is a perspective view of the vane or shovel secured within the mixing barrel.

The mixing barrel 1, which may be of any form, is illustrated as cubiform, having at its ends wheels 2, 3 which forms a part thereof, said wheels riding upon antifriction rolls 4, 5; a gear 6 formed on the wheel 3 being driven by a pinion 7 loose on a shaft 8, and a clutch mechanism 9 being provided to connect the pinion to the power shaft. The latter may be driven by an engine 10 through-a pinion 11 and a gear 12. The materials to be mixed are thrown into a hopper 13 at the receiving end of the barrel. This hopper is supported by a standard 14 rising. from the base or sill 15 of the apparatus. At its lower end the hopper terminates in or is secured to an annular mouth-piece 16 having a brim 1.7, which rolls over an annular internal lip 18 formed in the plate having therein the charging opening 19 of the barrel. The hopper comprises a vertical rear plate or apron 20, which is secured at its bottom by bolts 21 passing into the mouthpiece 16, and the latter has a depending lug 22- secured to said supporting standard 14. The charging orifice 19 is formed in a triangular plate 23, which is cast integral with the wheel 2, and is formed along all. sides with stiffening flanges 24:.

To prevent access of grit between the over-curled brim 17 and the inwardly projecting lip 18. I provide a guard-ring 25, which may be formed in three similar segments, secured by bolts 26 to said. flanges 24; each segment having at its ends ears 27 through which the bolts pass; said ears being inclined to correspond to the inclination of the flanges 2 L Said flanges 24 are inclined to fit the-sides of the cubical barrel at its truncated end, as illustrated clearly at Fig. 1. The sides of said barrel are inserted between said flanges and said ears 27, and are secured by the same bolts 26 that hold the ring-segments 25.

The standard 14 is made adjustable vertically to compensate for irregularities in manufacture, and also to permit vertical adj tment of the mouth-piece 16 of the hop per, to accommodate settling of the barrel due to wear of the trundles and bearings.

This adjustment is efi'ected by a screw passing down through a lug 29 secured to i the rear face of the standard 14, and bearing upon a metal plate or step 30 provided on the framework 15. The standard 1.4 is held fast by means of a pair of vertical clamps 31 secured by horizontal bolts 31 to the side of the frame or sill 15. These clamps may be loosened to permit vertical adjustment of the standard, and may then be tightened to hold the standard where adiusted. At its opposite end the mixing bar rel. is supported in a similar manner. A triangular plate having flanges 33 and formed integral with the wheel 3, is provided with a discharge orifice or-opening 34 at the axis of revolution. Inserted in said 4 go discharge orifice 34 is a discharge tunnel or hell 35, having a peripheral collar or flange {i to fit in a depression 37 formed in the exteri0r.edge of the orifice St (the mixing barrel and bell being relatively revoluble). :21 lhe bell is held in place by a ring 38 seeurcd'by screws'39 to the triangular plate 32, and there is sullicient friction at the joint to cause the bell toturu with the barrel, while permitting the bell to be held sta- :so tionary when desired during the turning of the barrel, to etl'cct a shift of their relative positions.

For convenience, the part of the bell which pro icctswithin the barrel may be cast, and may have the flange 36 thereon; and the remainder oi the bell may consist of a sheet metal cone t'rustum FJ titted to the cast portion 35, and bearing against a shoulder 4-0 formed thereon. The inner cud of the hell is closed, as at 41; the bell extending preferably halt way oi the length ol the barrel.

lhn'ing the mixing operation. none of the material enters the bell 3:7; but alter the material is thoroughly mixcd. it is dis charged into said bell through a long lat. oral slit or opening .12 formed therein and ll xtcnding from its inner end nearly to the Flange W. ..'\t Fig. 2 this opening is shown in such position that the mixed material cannot he received into the discharge bell.

vane or shovel i is employed for the purpose oi conveying the mixed material into the discharge bell: and it will be seen that when it is not desired to (lisrhargu it only necessary to change the location ol" the opening 12 with reference to the show! if asat Fig. 3. l3 Slll )S((]lHntl V cilia-ling another relative turning movement between the bell and the shove], the opening 42 may be brought again into position to receive the discharge of the Nine or s'hOWl l3. where upon some of the mixed material w ill be depositcd in .the ischarge l-cll at each revolution of the bar-rel, when the shovel 43 sufli ciently raised to permit the material to flow therefrom through the opening -12, as will beunderstood by reference to Fig. 6.

From the foregoing it will be understood that the discharge bell 35 is intended usually to revolve with the barrel, and at each revolution to receive and discharge a portion of the contents of the barrel; but the bell is capable of rotative shifting within the barrel, so that even though both revolve together, none of the contents of the barrel can get into the bell or be discharged. To eflect conveniently this relative shifting be tween the bell and the barrel, 1 provide a suitable stop mechanism to arrest the bell during the revolution oi? the barrel, to bring the bell slot C2 to either eli'ective or inefiective position, as may be desired. The mixer may continue to rotate always in the same direction Without stopping for charging or .lischarging.

Upon the bell I provide two stops or lugs 44: and 45. These lugs may be in the form of bolts which connect two segments 46 of a ring which encircles the bell just outside of the barrel; said segments formed with ears 47 through which. the bolts extend, and by which the segments are drawn tightly upon the bell, so as not to shift accidentally around the same. A. coi'ipera tive stop 48 is secured upon a lever 49. pivoted at 50 upon the framework, and having a handle 51.

Said stop 48 is nornally idle, the lever 4C9" resting upon a pin provided upon a fixed vertical guide 53. Upon lifting the lever. the stop'4-8 may he brought into the path of either lug 4A- or if). to arrest the bell While the barrel continues to rotate. thereby to etlect the desired relative shifting of the barrel and hell] The bell may thus be brought alternately to rti' ct-iw and inctl'ective positions.

.ssuming that the materials are mixed and are ready to discl'iarge. the lever 49 is liltod From the position at Fig}? to thatat Fig. 4, to intercept the. stop or lug l4 and hold the bell st ll until the barrel l and its internal shovel '3 swing from. the position at Fig. to that at Fig. t. in the latter position the shovel (which at each revolution carries up a pution oi the contents of the mixer) registers with the opening 42 in the cone or hell 4-5. so that as the two continue to rotate together in the direction of the arrow. the shovel will be enabled once 111 bell when position.

pin 56 projecting from the lever -19, to hold it in. the Fig. position; and a tappet 57 projecting from the end of the revolving barrel may knock said latch toward the left at Fig. 4, thus releasing the lever and permitting the latter to drop. The latch may be connected to the lever by a link 58, which during the rising of the lever, swings the latch to the Fig. 4 position; the joints being made suihciently loose for the requisite play of the parts. The bell having thus been adjusted, the contents of the mixer are discharged.

Before introducing a new charge into the hopper 13, the handle 51 is again lifted to carry the stop l8 into the path of said lug it or of the lug -15 (which is diametrically opposite from the lug a l on the cone The bell is thus again stopped, While the barrel continues to revolve; and when the bell and barrel reach the relative position 3, the tappet 57 again releases the latch 54, and the lever l9 again drops; so that any discharge from the shovel 43 will fall upon the crown of the bell s5 and from thence drop again to the bottom of the revolving barrel. The shovel and the bell thus aid in mixing the material, so that the mixing opshovel t?) and bell may be brought into cooperation to discharge the barrel.

The lugs ii and 45 are placed upon opposite sides of the cone, so that either lug may operate for effecting adjustment of the bell either to the position at Fig. 3 or to that at Fig. 4:, or vice versa; and the mounting of the lugs upon the ring 46 permits their adj ustment relatively to the discharge opening 42 of the bell. so that by adjusting said ring, the opening 2 may be brought to the proper position relative to the shovel 43 at the moment that the tappet 5T releases the lever 49.

Variations may be resorted to Within the scope or": the invention. and portions of the improvements may be used Without others.

Having thus described my invention, I claim:

"i. In a mixing machine. the combination with a barrel having a cl'iarging opening provided with an annular internal lip. of a hopper terminating in an annular mouthpiece having a brim which rolls over said lip, said hopper comprising a rear plate or apron vvhich is secured at its bottom to said mouth-piece.

2-. In combination. a truncated eubi'form mixing barrel. triangular trainee to which the truncated ends oi? the barrel are secured. said frames having stii'lening fiaiwes in clined to fit the adjoining sides oi the ban rel, and Wheels cast integral with said frames.

In a mixing machine, the combination with a barrel having a charging opening provided with an annular internal lip, of a hopper terminating in an annular mouthpiece having a brim .vhieh rolls over said lip, and a guard ring surrounding said brim and secured upon the barrel.

1'. In combination, a cubiform mixing barrel having a truncated end, a triangular frame having a charging orifice and provided with stitlening flanges inclined to fit the adjoining sides of the barrel, said charging opening provided with an annular internal lip, a. hopper terminating in an annular mouth-piece having a brim which rolls over said lip, a dust guard ring surrounding said brim and having ears Within the barrel, and bolts passing through the ears, barrel and the frame, to secure them together.

in combination, cubiform mixing barrel having a truncated end, a triangular frame having a charging orifice and provided with stiffening flanges inclined to fit the adjoining sides of the barrel, said charging opening provided with an annular internal lip, a hopper terminating in an annular mouth-piece having a brim which rolls over said lip, a dust guard ring surrounding said brim and having ears Within the barrel, and bolts passing throughthe ears, barrel and the frame, to secure them together, said dust guard ring formed in three single segments, and said ears provided at the ends of said segments.

6.111 a mixing machine, the combination with a revoluble mixingbarrel, of a hopper terminating in an annular mouthpiece fitted to a charging opening in said. barrel, a standard .Which is supported uponthe framework of the apparatus for vertical adjustment: said hopper supported on said standard; said standard having a lug and a screw threaded through said lug and bearing upon said framework for effecting the vertical adjustment oi the standard; and independent clamping devices adapted to be secured to said. standard and frame to hold the standard fast Where adjusted.

7. The combination of a mixing barrel having a discharge opening. a self-discharging hell mounted to revolve With said barrel and extended through said opening, said bell having a lateral opening within the barrel. lug" on said bell, a device for preventing at will the contents of said barrel from entering said opening, said device having a movable stop for engagement with] said lugs.

R. in. combination. a mixing barrel, :1 selfdischarging tunnel or bell extending through a discharge opening in said barrel and mounted to rotate therewith and having a lateral opening, andconstructed to discharge the barrel by reason of the revolu tion of the latter, said mixing barrel having an internal vane, shovel or conduit, said bell and barrel being shiftable rotatively to bring said lateral opening either into or out of position to receive the discharge from said vane, lugs on said bell and a stop for engagement with one or the other of said lugs.

In combinatioma mixing barrel, a selfdischarging funnel or bell extending through a discharge opening in said barrel and mounted to rotate therewith and having a lateral opening, and constructed to discharge the barrel by reason of the revolution ofthe latter, said mixing barrel having an internal vane, shovel or conduit, said bell and barrel being shiftable rotatively to bring said lateral opening either into or out of position to receive the discharge from said vane, and means including a manually operable member, for effecting such relative shift between the bell and barrel during the rotation of the barrel, said manually operable member mounted upon the framework to be normally stationary during the rotation of the barrel.

10. In combination, a mixing barrel, a

rel through which the bell projects, and a ring secured to the barrel to engage said flange to holdthe bell in place; said barrel having an internal vane, and said bell'having within the barrel an opening, and being rotatively shiftable to bring said opening into or out of position to receive the discharge from said vane.

11. In combination, a mixing barrel, a

sell-discliarging tunnel or hell projecting 1 thereinto at the axis of the barrel and hav-- ing a peripheral collar or flange to fit in a depression formed in the exterior edge of the orifice in the barrel through which the bell projects, and a ring secured to the barrel to engage said flange to hold the bell in place; said barrel having an internal vane, and said bell having Within the barrel an opening, and being rotatively shiftable to bring said opening into or out of position to receive the discharge from said vane; the bell and barrel being frictionally jointed to cause the bell to rotate with the barrel.

12. In combination, a mixing barrel, a self-discharging bell of cast metal projecting thereinto at the axis of the barrel and having an integral peripheral collar or flange cast thereon and formed to fit in a depression formed in the exterior edge of the orifice in the barrel through which the bell projects, and a ring secured to the barrel to and a mouth-piece fitted to the outer end of said bell.

13. The combination with a revoluble mixing barrel, of a discharging bell provided With lugs, mounted to rotate with said barrel, and a lever adapted to be brought into engagement with either of said lugs, Whereby said bell may beheld adjusted relative to the barrel. I v

14. The combination of a revoluble mix ing barrel having a self-discharging bell to revolve therewith, means connected to the barrel being provided for effecting the transfer of the contents of the barrel to said discharge bell, the latter having an opening to receive such contents and rotatively shiftable with reference to the barrel to prevent such contents from entering the bell, a lug provided on the bell, and a stop movable into the path of said lug to hold the bell stationary during the revolution of the barrel.

15. The combination of a revoluble mixing barrel having a discharge bell to revolve therewith, means being provided for conveying the contents of the barrel to said discharge bell, the latter having an opening to receive such contents and rotatively shiftable with reference to the barrel to prevent such contents from entering the bell, a lug provided on the bell, a stop movable into the path of said lug to hold the bell stationary during the revolution of the barrel, a latch to hold said stop in Working position, and means connected to the'barrel for releasing said latch.

16. .The combination of a revoluble mixing barrel having a. discharge bell to revolve therewith, means being provided for conveying the contents of the barrel to said discharge bell, the latter having an opening to receive such contents and rotatively shiftablc with reference to the barrel, to prevent. such contents from entering the bell, a lug provided on the bell. a stop movable into the path of said lug to hold the bell stationary during the revolution of the barrel, a latch to hold said stop in Working position,,means connected to the barrel for releasing said latch, said stop mounted upon a lever. and a link connecting said lever to said latch.

WILLIAM J. JUDD. Witnesses:

JOHN O. SEIFERT, K. FRANKFORT.

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