US319311A - Combined mixer and sifter - Google Patents

Description

(No Model.)

D. PETERS.

COMBINED MIXER AND SIPTER.

PatentedJune 2, 1885.

INVENTOR 6212M WITNESSES ATTORNEYS lfnrrnn ST TES A'r- NI 'rrIcE,

DANIEL rnrnns, CINCINNATI, OHIO.

- COMBINED MIXjERAND sir-Tea.

SPECIFICATION forming part of Letters-Patent No. 319,311, dated June 2, 188 5.

Application filed November 14, 1884. (No model T0 aZZ whom it may concern:

Be it known that I, DANIEL PETERS, a citizen of the United States, residing at Cincinnati, Ohio, have invented new and useful Improvements in Combined Mixers and Sifters, of-which the following is a specification.

My invention relates to combined mixers and sifters; and it consists in the combined mechanism hereinafter more fully described, and pointed out in the claims.

Mechanism illustrating my invention is shown in the accompanying drawings, in which- Figure 1 is a side elevation of a complete machine, the mixing-vessel being in section to show the interior. Fig. 2 is a cross-section of hopper and sifting mechanism. Fig. 3 is a perspective view of sieve and frame, and Fig. 4 a perspective view of agitator device.

In order to give a full, clear, and exact de scription of my invention, I will proceed to describe, first, the hopper and its sifting .mechanism; second, the mixing-vessel and its f mixing mechanism; third, the action of both I singly or in combination, reference being made to the drawings, where similar letters of ref erence designate the parts hereinafter mentioned.

In the drawings, H is the hopper, mounted above and at one end of the mixingvessel, and carrying mounted in bearings in its sides a shaft, 8, with spur-wheel s thereon exteriorly. I may provide a crank, c, for operation by hand-power, or suitable means for connection with other power.

Upon the shaft within the hopper and in proximity to its sides Ifasten end plates, 6, and secure between them one or more agitator frames, f, by means of the screws c through the slotted openings in the end plates.

I form upon base-strips a brushes 5 of bristles, wire, or other substance, and detachably secure the strips to the agitator-frame. As the brushes wear by contact with the sieve, they may be set out farther from the shaft by loosening the screws i in the slot and retightening them in a new position. Should the brushes finally require complete renewal, the base-strips may be detached and new ones, with brushes, inserted and screwed or other wise fastened to the frames. To secure the frames from lateral movement I insert Wedgepieces d.-- Thus constructed, the brushes of the agitator revolve on the shaft in contact with the semi-cylindric sieve. The latter 1s fixed in a frame, F, adapted to be removably inserted beneath the hopper, and fastened therein by pins, screws, or otherwise.

Frames having netting with different mesh may be used to suit the needs of the case.

at 72/, for convenience in inserting the screenframes. I also hinge the upper and lower parts at h, constructing the upper part with front and back contracted toward the jointline, and flaring outward below to assist the passage of sifted material into the mixlngvessel below. This construction permits easy access to the interior of the hopperto remove the agitator or to clean and examine the sieves.

' When in use, the upper and lower parts are secured together with catch-hook 7t.

' In operation the agitator-arms push a quantity of material forward and down upon the sieve, the spaces between the successive arms serving to confine a charge which is rubbed and forced through the sieve by the following brushes. The lumps and cakes are thus broken up and pulverized, while harder portions of dirt or refuse are carried around, and at the end may be removed from the sieve.

The brushes also serve to keep the meshes of the sieve cleaned and ready-for the sifting of the following POWdBIZY The mixing-vessel is an oblong box, B, carrying mounted in its ends a shaft, S, adapted end, or by spur-gear s,meshing with the spurwheel on the hopper. I may also use the crank c on this shaft to apply hand-power. I preferably form the lower part of the box below the shaft-line interiorly of a semi-cylindric surface, but I may construct the vessel itself a cylinder.

I fasten rigidly to the shaft S by suitable arms, a, one or more spiral blades, 25 in the form of an Archimedean screw, adapted to pass in proximity to the curved surface of the mixing-vessel upon rotating the shaft. Intermediate of these and the shaft I fasten rigidly one or more similar blades, 0, but whose turns are in the opposite direction.

I hinge the hopper at the back, as shown 7 to be driven by power at the pulley P at one At the end of the n1ixing-vessel, at the bot tom, I form an opening closed by slide G or other suitable means.

In operation, upon rotating the shaft, the outer blades of the screw device carry the material inone direction from end to end, while at the same time the inner blade or blades carry, it in the opposite direction. Gravity assists the operation, and there is a complete turning over and mixing of the material.

When the operation has proceeded sufficiently,

on opening the slide the pulverulent contents will be successively urged toward that endby the outer screw-blades (rotating toward the observer in the drawing) and completely emitted.

Ihave. thus far described the sifting and mixing mechanism as operatingindcpendently; butv should it be desired to operate them simultaneously I can lower the front of the hopper and bring the gears s and 8 into operative contact by turning toward the observcr about its hinges 0 0 a strip, 1, fastened either on the hopper or mixing-vessel. Fig. 1 shows the wheels out of gear, and Fig. 2shows the hopper lowered to bring the wheels into mesh. In the latter case, to secure proper working I hook or fasten the hopper to the side of the mixing-vessel,providing the recess 1 in the reversible strip for passage of the hook 7.6. In the latter case, also, should it be desired to operate by steam-power the pulley P will operate both sifter and mixer; or the crank 0 may be attached to either shaft to operate the mechanism of both.

The general construction of hopper and mixing-vessel is sufficiently clear in the drawlugs, and I have therefore not described them especially adapted for pulverulentsubstances v I' do not intend to limit my mixing apparatus to such application.

The same mixing apparatus may be used where the substance is in a pasty or semiliquid condition, as fats, lard, or pulps.

I am aware that sifters for flour'are common employing wire-gauze netting of semicylindric form, and I am also aware that spiral blades fixed to a cylinder or rotating therein are used in machines for various purposes. Such construction broadly, therefore, I do not Claim. v

. What I claim, and desire to secure by Letters Patent of the United States, is-

1. In a combined mixerand sifter, the combination of a horizontal casing provided with a sifter at the top near one end, and a discharge-aperture at the bottom near the other end, to emit the mixed contents, a projecting eonnections between the mixer-shaft and the I sifter, whereby the two are operated in unison, substantially as set forth.

3. In a combined mixer and sifter, a sifter adj ustably mounted at the receiving end of the mixer and power connections between the two, whereby the latter may be thrown into or out of operating connection, substantially as set forth. I

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses. I 1

DANIEL PETERS.

Witnesses:

B. M. HOSEA,

L. M. HOSEA.

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