US277301A - Mill-stuff-recovering machine - Google Patents

Description

(No Model.)

1). H. LORD.

MILL STUFF REGOVERING MAGHINE.

No. 277,801 Patented May 8,1883.

WITNESSES JWM ATTORNBYS.,

UNITE STATES PATENT OFFIC DREW H. LORD, OF NORTHFIELI), MINNESOTA.

MlLL-STUFF-RECOVERING MACHINE.

SPECIFICATION formingpart of Letters Patent No. 277,301, dated May 8, 1883,

To all whom it may concern:

Be itknown that I, DREW H. LORD, of Northfield,-in the county of Rice and State of Minnesota, have invented a new and Improved Mill-Stufif-Recovering Machine, of which the following is a full, clear, and exact description.

Hy invention consists of a simple and efficient contrivance of a sifting box or hopper for sifting the mill-stuff accumulating in different parts of the mill into said hopper, which is connected by a spout with the elevator to the flour-bolt, and provided with a rotating stirring device adapted for feedingthe stuff slowly into the elevator, whereby all dust, meal, or flourscattered about the mill by various causes, and containing good flour, may be gathered into the hopper from time to time, and be gradually fed into the bolt along with the stream from the stones or rolls, 'in sufficiently regular and limited amount so as not to oversupply or clog the bolt, to be bolted along with the rest, and thus be recovered from waste, allas hereinafter fully described.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is partly a side elevation and partly a sectional elevation of my improved dust-recovering machine. Fig. 2 is a sectional elevation of the said machine on line w :12, Fig. 1; and Figs.3 and 4 are details of parts employed in the machine.

I propose to arrange a box, a, between the legs I) and c of the flour-elevator which conducts the meal from the stones or rolls to the flour-bolt, making said box witha hopper-bottom, (1, and fitting a hand-sieve, e, on the top,

suitably for sifting the mill-stuff into it from time to time. Inside of the hopper I arrange a feeder, consisting of the vertical shaft f and arms 9, of any approved contrivance, adapted for gradually feeding the stuff out of the bottom of the hopper through the passage 71-, and

into a spout, i, which conducts the stuff into a pocket, j, on the side of the elevator-leg c, in which the buckets It ascend to the bolt, from 1 which pocket the meal falls into the buckets Application filed February 6, 1883.

(No model.)

wheels m, to which power is applied by a belt on the pulley n forlrevolving the feeder. The shaft 1 has bearings 0 attached to the outsides of the box, and fitted so as to prevent the stuff from escaping through them,and the bevelwheels at are protected from the stuff by the cover 19, having slotted ends q to drop down overthe shaft 1, and the bottom piece 8 having grooved upright pieces t in which the edges of the slotted ends of the cover fit and slide down when the cover is put in position. The upper ends of'the uprights t a re notched at u, to fit the shaft closely, and the upper ends of the slots are made to close similarly on the upper side of the shaft. The bottom 8 is located under wheel on and rests on the bar 21, forming the ranged with the opening h at the bottom of the hopper, to regulate the delivery of the stuff, and a cloth valve, 00 is located in the spout i, to prevent the air from blowing up the spout from the elevator, in which the air is made to flow upward by the effect of the upward motion of the buckets. The sieve c is fixed between guides g on the top of the box a, to facilitate the working of it by hand.

\Vith such machine anysurplus meal or dust accumulating in differentpartsof the millmay be returned to the proper channels for passing to the dressing machinery much more satisfactorily than by the common method of feeding it directly to the elevator by hand, which mode is irregular and uncertain and occupies too much time of the miller, besides frequently clogging theelevatorand making much trouble and delay.

Having thus described my invention, whatI claim as new, and desire to secure by Letters Patent, is-

1. The combination, with an elevator of a flour-bolt, of a sifting-box having hoppershaped bottom, and feeding device in said hopper-shaped bottom, substantiallyas and for the purpose set forth.

2. The combination, with the elevator b 0, provided with the pocket j, of the sieve e,

the box a, provided with sieve-guides y, the.

3. The combination, with the box a, provid- 7', of the spout i and the cloth valve :0 ared with the cross-bar v and'the shaft Z, of the ranged in said spout, substantially as herein 10 cover p,'having slotted ends, and the bottom shown and described. 8 provided with the uprights t havin notched ends at, substantially as and for th; purpose DREW LORD set forth. Witnesses:

4. The combination, with the sifting-box a d A. O. WHIPPER,

and, the elevator b 0, provided with the pocket R. J. DRAKE.

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