US832722A - Mixing-machine. - Google Patents

Description

No. 832,722. PATBNTED OCT. 9, 1906.

R. N. CUNNINGHAM & J. W. MQPHERSON. v

MIXING MACHINE.

APPLICATION FILED 002.20. 1905.

2 SHEETS-SHEET 1.

F .2 WITNESSES: A7 INVENTORS ATTORNEYS J 7 PATENTBI) OCT. 9, 1906 R. N. CUNNINGHAM & J. W. MoPHERSON.

MIXING MACHINE.

, APPLICATION FILED 00120, 1905.

2 SHEETS-SHEET 2.

INVENTOR S l/f/Can WITNESSES! bin-7W4,

wggzom/ rson/ longitudinal shaft2. T

UNI D STATES PATENT CFFI E.

nor N. CUNNINGHAM-AND JOHN iv. ASSIGNORSTO THE AMERICAN CONCRETE MACHINERY COMPANY, or

COLUMBUS. OHIO, A CORPORATION or orno;

" MIXING-MACHINE.

liable to st out of working order.

With t e above and other objects in view cation and illustrated in the accompanying of the discharge end of the mixer, and Fig, 4 en i ,drum is provided with a head 7, through the .ed on standards 5, extending upwardly from MCPHERSON. OF COLUMBUS. OHIO,

Specification of Letters Patent.

' Patented Oct. 9, 1906.

1'0 all w/wm it may concern:

Be it known that we, Roy N. CUNNING HAM and JOHN W. MCPHERSON, citizens of the United States, residing at Columbus, in the county of Franklin and State of Ohio, have invented certain new and useful Im-- provements in 1 Mixing-Machines, of which the following is a specification. I Our invention relates to new and useful improvements in mixing-machines. y he object of the invention is to provide a mixer comprising a drum and a mixing device revolving in o posite directions and mixing vanes or bla es carried by the drum coacting with the mixing device, together with a partially hollow shaft having perfora-' tions and associated with the mixing device andmeans for sup lyi water to the hollow portion of the sha t an I causing the same to spray from the perforations.

Another object of, the invention is to pro vide a device of the character described that will be'strong, durable, and efficient and sim ple and com aratively inexpensive to makeand one in w 'ch the several parts will not be the invention consists of the novel details of construction and operation, a referable embodiment of which is describe in the specifidrawings, wherein-- Figure 1 is a side elevation of our mixer. Fig, 2 is a; longitudinal sectional view taken on the line a: mof' Fig. 3. Fig. 3 is an elevation is a transverse vertical sectional view ta on the lineyy ofFi .2.

. ,In'the drawings the numeral 1 designates a cylindrical drum through which extends a e drum is supported on the shaft by'spiders 3, which are secured to the inner periphery of the drum. and loosely engage about the shaft, so as to turn thereon. At each end the shaft is supported in bearing-boxes 4, which are mounta suitable base-frame 6. At its feed end the oentralportionof which the annular spout 8 '-hopper 'iprojects. By this arranges to be mixed and which are fed into the hopper 9 are delivered dience being had to F rectly into the drum by the spout 8. Oppositely-disposed blades or vanes 10 are secured of the shaft are spaced apart and act to force.

the mixture toward the discharge end of the drum while carrying on the mixing opera-- tion. About the shaft 2 and between the blades withrespect to their longitudinal d sposition collars 11 are secured. From opposite sides of these. collars'mixing-paddles 12 project, the said paddles on one side of'each collar being disposed at an opposite angle to the paddles on the opposite side, both addles extending at angles to the-longitu mal axis ofthe'drum and at different angles from the blades 10, the said paddles, however, being set so as to tend to forcethe materials toward the discharge end as the mixing operation is carried out. The addles are of such length as to pass between t e blades 10 as the shaft and .drum are revolved.-

'obtained'by revolving the drum 1 and its blades 10in one directlon and the shaft2 and the paddles 12 in the opposite direction.

For carrying out this operation we provide on the outer eriphery a sprocket-ring 13, which is engaged. by a sprocket-chain 14 passing thereabout and running over a small sprocket 15, fixed on a drive'shaft 16. The driveshaft' 16is mounted in a bearing-standard 17 and a bearing-box 18, secured on the side of the standard 5 beneath the hopper 9. The shaftprojects beyond the bearing-box 18 and carries a spur-gear 19, which meshes with a ear 20,.carried on the end of the shaft 2. %ast and loose pulleys 21 and 22, respectively, are arranged on the shaft 16 in the usua way.- Mot1on being imparted to the fast pulley by suitable means revolves the shaft 16 and the sprocket 15 to theright, refers. 3 and 4. The drum 1 is also'revol'ved to t e right by the sprocketchain 14, the spur-gear 19 being likewise re volved. to the ri ht. The spur-gear 19, revolving to the right and meshing with the gear 20, causes the same to revolve to the left, and

the gear 20, being fixed on the shaft 2, revolves the same and the paddles 12 to the left. Bv

this arrangement the drum and its" blades 1l) are revolved to the right, while the shaft 2 and its paddles 12 are revolved to the left, so that the hm terials fed into the drum from the y forced toward the discharge end of the drum.

The shaft 2 is hollowed-out up to aapoint beyond the center, as indicated at 24, so that perforations 23, extending through the hollow portion, will be dis osed centrally of the drum. A suitable pac ing or plug 25 is inserted in the end of the shaft to close the same, and a pipe 26 is passed through the packingand extends into the hollow portion of the shaft well up into the perforated portion. The horizontal portion 26 of the pipe is connected to a vertically-extending portion 27, in which is arranged a suitable valve 28, so that the amount'of'water delivered into the pipe 26, and consequently to the hollow vportion 24 of the shaft, may be regulated.

.The portions of the pipe are'suitably fixed so as to remain stationary while the shaft "'revolves about the portion 26. The water or other liquid delivered from the pipe 26- into the hollow portion 24 of'the shaft s rays through the perforations 23 from all si es of the shaft, so as to thoroughly dampen the mixture, it being understood that the mate rials are mixed to theproper degree before beingsubjected to the spray. p

The operation of our mixer is as follows:

The materials to be mixed are fed into the hopper 9, from which they will be delivered by the spout 8 into the drum 1 The drum and its blades 10 revolvin in one direction and the shaft 2 and the pa dles 12 revolving 12 continue to the materials an propel the same forward throu h the moistening or spraying zone to the en of the drum. I After passing through the spray the materials which are. moistened are thoroughly mixed until they are discharged from the open end of the drum in a'perfect mixture, ready for immediate use.

hopper 9 will be thoroughly mixed and gradha 1 Our machine is more especially designed for mixing concrete, and by regulating the valve 28 either a dry or-a wet mixture may be produced. -Whilethe machine is more especially adapted for mixing concrete, it is equally as well adapted for use in mixing various materials.

' Having now fully described our invention, what we claim, and desire to secure by Letters Patent, is-

'1. In a device of the character described, the combination with a rotative open-ended drum, of a plurality of blades secured to the inner surface of said drum and extending toward the axial line thereof, said blades being set at such an angle as to feed material contained in said drum toward the open end thereof, a hopper adapted to feed material to the opposite end of the drum, a shaft which passes through the lower portion of'the hopper and through the drum, blades carried by said shaft, means for imparting motion to said shaft in an opposite direction from the 1 rotation of the drum, the blades carried by the'shaft being set at such an angle opposite to the angle of the drum-blades as to feed the material contained in the drum toward the open end of the drum, said shaft having an 'openin formed part way therethrough, and

means' or conductingliquid to the interior of the hollow shaft.

' 2. In a device of the character described, the combination with a rotative drum of blades carried by the inner surface of the drum and ,proi'ectin to'ward the axial line thereof, said b ades eing setat' such an an- I gle as to feed materialfed to the'interior of the drum' toward one endthereof, means for feeding material totheio posite end of said drum, a shaft 'u'p'on jw 'ch said drum is vmounted, a plurality .of blades secured to said shaft and ext nding and working between the blades of the drum, and means for rotating said shaft "in the opposite direction from the drum. 2 v V In testimony whereof we aflix our signatures in presence of two witnesses.

.ROY N. CUNNINGHAM.

f JOHN W. MCPHERSOAN.

Witnesses:

' C; C. SHEPHERD,

'A. L. PHELPS.

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