US835286A - Grinding-machine. - Google Patents

Description

PATENTED NOV. 6, 1905.

.H. E. MBNIER. GRINDING MACHINE. APPLICATION FILED MAY 19, 1904.

wwussses ATTORNEYS UNITED STATES PATENT oEFIoE.

' HENR EMILE MENIER, or PARIS,- FRANCE.

GRINDING-MACHINE.

France, residing at No. 56.Rue de'Chateau-- dun, Paris, in the Republic of France, have invented certain new and useful Improvements in and Relating to Grinding-Machines,

.of which the following is a specification.

This invention has for its object a grinding-mill for grinding any suitable material, presentingthe advantage of insuring a larger output and more uniform operation as compared with grinding-mills as hitherto constructed.

The characteristic feature of this grinder resides in the fact that the grinding mem-- bersmillstones in this casegrind one upon the other with a movement'which is distinct and independent of the rotary motion which is imparted to one of them.

In the accompanying drawings, Figure 1 is a central vertical section of my improved grinder; and Fig. 2- is a sectional view on the line 2 2, Fig. 1, illustrating the operating mechanism for the lower stone.

a represents a millstone with a convex operative surface, and b a stone with a concave operative surface, the said millstones fitting exactly one upon the other.

The millstone a is mounted at the extremity of ashaft 0, capable of oscillating at d and to which an oscillatory movement is imparted by any suitable meansas a cam, acting at e, for example. The oscillatory movement in question is referably generated by the axis of the s aft 0, which describes a cone about point (1 as an apex, as will be readily understood from the drawings.

The stone 6 is mounted upon a vertical shaft f, suitably guided at g, and to which a movement of rotation is imparted by means of any convenient transmission member. The arrangement of the guide 9 is such as to allow the stone complete liberty in the vertical direction, so that it may rest with all its weight upon thestone a. The weight of this stone may be increased in any suitable maner. The shaft f is tubularand serves for the admission between the stones (1, and b of the substance to be treated, which in a more or less pasty condition is forced by means of a pum with t e said shaft.

The specific means which may be employed for securing the motions and operation hereinbefore described may consist of a Specification of Letters Patent. Application filed May 19, 1904. Serial 110. 208,731.

or other similar appliance connected Patented Nov. 6, 1906.

pulls m on the shaft f, adapted to be driven y a elt m, while a spring n may be mounted against the shaft f to exert a downward pressure thereon for the upper stone. The ower stone a may have on its shaft 0 the rods 6 e, secured about the collar a, pivotally attached to the eccentrics y" at their opposite ends. Suitable means, such as a strap p, may be rovided, driving the pulley p on the shaft 0 one of the eccentrics. The grinding isthus performed by the two suraces, one of which has a rotarymotion on its fixed axis while the other rubs across the first surface with its central axial point traveling across the diameter of the first stone in a line about its fixed axis.

The stones (1 and b are of a material adapted for use with the substancento be ground.

The material to be ground, either in a pasty, or fluid condition, whichis conveyed under pressure to the center of the stones a and b, is acted upon by these latter, owing to the rotation of the stone 6 upon the stone I a and escapes at the periphery into an annu- -lar receptacle h, arranged in such a manner as to permit of collecting it at a single point. The ressure of the stone 6 is suitably regulate for producing'the desired grinding effect. In case of obstruction the substance under pressure lifts the stone 1) and automat-f is adapted for the treatment of fluid or semifluid substances of all kinds or those contained in a liquid or semiliquid medium. It may vary in its various constructional details and be constructed in any size and of any suitable materials.

- claim as my invention- 1. A grinding-mill, comprising two stones, the upper one concave and the lower one convex, one rotating on a fixed axis, and the other movable to each side of the center of the surface of the first stone, means for holding the faces of said stones in contact during their motion, and a feed-channel through the center of one of the stones.

2. A. grinding-mill, comprising two stones having their surfaces in contact andfitting each other, andmeans-for rotating :one of said stones on a fixed axis, 111 combination with means for im arting to the second: stone travel .=in a path-generatingacone,-and a feedmhannel throlrgh the center oat-the upper stone.

g-mill, comprising two'stones,

I 4." A-grind' "one frotating on a fixed axis and the other v:movable around the surface of the first stone oint traveling 20 about the fixed axis of the ot er, and means and having its central axial for holding the faces of said stones in contact during their motion, in combination with spring means for pressing said stone ro- .tati-ng on a fixed axis against the other, and a feed-channel leading through the center of said stone.

In testimony whereofi I have signed my name to'this specificationin'the presence of twosubscribing. witnesses.

HENRI EMILE :MENIER. Witnessesz- LE'VI GHANEDLER,

H-mmson OIGoxn.

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