US647746A - Apparatus for grinding and sieving pulverizable substances. - Google Patents

Description

No. 647,746. Paten td Apn-fl," I900.

n. J. GASSLEIN.

APPARATUS FOR GRINDlNG AND SIEVING P ULVERIZABLE SUBSTANCES.

(Application filed June 9, 1899.)

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WITNESSES C //v' VEN T0,?

A TTOHNEY I UNITE STATES PATENT OFFICE.

RICHARD J. GASSLEIN, OF PHILADELPHIA, PENNSYLVANIA.

APPARATUS FOR GRINDING AND SIEVING PULVERIZABLE SUBSTANCES.

SPECIFICATION forming part of Letters Patent No. 647,746, dated April 17, 1900. Application filed J'une 9,1899. Serial No. 719,922. (No model.)

To all 1071,0112, it may concern.-

Be it known that I, RICHARD J. GASSLEIN, a

citizen of the United States, residing in the. city of Philadelphia, State of Pennsylvania,

have invented certain new and useful Improvements in Apparatus for Grinding and SievingPulverizable Substances, of which the following is a full, clear, and exact descripject the provision of mechanism in a unitary structure actuated from asingle shaft and operating in unison of time for consecutively grinding and sieving pulverizable substances, r such as drugs or solid chemicals,whereby the said operations may be conducted in immediate succession, the mill delivering the pulverized substance to the sieving devices, obviating handling in'transit, avoiding the usual dust therefrom, and producing a great saving of labor and more uniform and cleanly product.

To these ends my invention consists of the combined mechanisms in one unitary structure and in some of the details thereof, as hereinafter described and claimed.

In the drawings illustrating my invention, Figure 1. is a perspective view of the apparatus, showing the connecting actuating mechanism between the grinding and sieving devices. Fig. 2 is a sectional view thereof; Fig. 3, a plan view below, the line a b of Fig. 2, of the sieving mechanism and part of the mechanism which reciprocates the same; and

Fig. 4 is a detached sectional view of the interior sieve-frame.

The apparatus hereinafter described is especially adapted as a drug-mill to grinding and sieving pulverizable drugs, and hence'is shown as of comparatively-small dimensions; but it is obvious that it may be of size to be driven by power and for other purposes than relation to the latter as to deliver the ground material at all times to the reciprocating siev ing-frarne D, mounted within said housing.

The sieving apparatus consists of a housing 0, the essential features in which are that it shall be of a greater length than the reciprocating sieve frame, to allow for the length of stroke desired, and that it shall have parallel side ribs 0 c, which provide a track-mounting for the reciprocating sieve. Said sieve D consists of a suitable frame composed of upright or inclined sides, the opposite long sides thereof being interiorly grooved or slotted, as

at d, at the'base to enable a wire or other sieving-plate d to be easily slipped into and removed from such grooved or slotted frame, and thereby enable the apparatus to sieve coarse-or fine, as may be desired. To one of the short sides of the sieving-frame D is attached a rod E, which projects through an aperture in the side of the housing 0 and is provided on its end with a connecting-clutch F for the rocking lever H.

The connecting actuating devices consist of a cam faced plate P, mounted upon the -E is held in such manner as to adjust itself to the relative change of position of said parts when the rod E is drawn in and out thereby. Alike forked end h is provided on the upper end of the rocking lever H to connect in like manner with a second and similar clutch on one end of a rod T, said rod being of greater diameter at its inner end, which latter part is mounted in a housing S, formed at the top of the standard K, with a spiral spring surrounding part of said rod T within the housing, so as to maintain said part-s normally in the relative position shown in Fig. 1. The other or free end of said rod T is provided with a wheel 3, journaled in its bifurcated end, said wheel bearing against the cam-face of the cam-wheel P. The housing for the sieving device may be closed or open at base and may be provided with a drawer, as shown. The operation of the device is as follows l The substance to be pulverized and sieved being delivered to the hopper in the grinding mill motion is imparted to the grinding devices through the fly-wheel A or in any other suitable way and the material ground delivered, through the discharge-outlets A and A directly to the reciprocatingsieving-frame in the housing 0. Such motion being imparted -to the main shaft, .upon which the grinding devices are mounted and by which they are actuated, said rotary motion is thereby imparted to the cam-faced wheel P, and through the same to the little wheel s, jou rnaled in the bifurcated end of the spring-controlled-rod S, which in turn imparts a swinging motion to V :therocking lever H, thelower end of which being connected with the sliding vrod E, se-

' cured to the sieving-frame, said frame-is therereceiving-receptacle. i 1

.Iclaim as new,and desire to secure by Letters by reciprocated on the track co in the housing'O, said reciprocation being necessarily in Iunison of time with the rotary movement of the grindingshaft. v ployetl in grindingmills for adjusting the grinding-faces to grind fine orcoarse being- .employed, the sievin'g frame may be adjusted in the same way by sliding out the sieving v3 The cam devices eminesh d, as shown inFig. 4, and inserting a' finer or coarser mesh, as may be desired, the.

groundandsieved material beingfinallyde-v -1ivered into the drawer F or other suitable;

Having thus'described in y invention what Patent, is-"-' 1. A machine for consecutively grinding vices delivering the ground product directly to the sieving device, the main shaft of the machine operating the grinding devices, a cam-faced wheel actuated by said shaft, a sliding rod normally held in contact with said wheel and adapted to be reciprocated thereby, a sieve receiving the ground product, and connections between said sliding rod and said sieve fortransmittin g the reciprocatory move ment of the former to said sieve; substantially as described. 7 f

2. In combinationwith reciprocating sieving devices, of a frame or housing over the same, a grinding-mi-llmounted on said housing and having a discharge-outlet delivering the ground material to the sieving-frame, a main shaft carrying and actuating the grind ing devices, a cam-faced wheel mounted on and revoluble with said grinding shaft, a spring-controlled reciprocating rod suitably mounted in a standard on said housing, one end of saidrod carrying a wheel, a rocking fleverhavi'ng forked ends, one thereof "connected with and actuated by said spring-controlled rod, andthe'other. thereof connected "with and actuati-n g to reciprocate a sliding -fixe'd my signature this 6th day of June, A. D.

v RICHARD J. GASSLEIN. r-witness'esz I I" a I WALTER O; PUSEY, I H. '1.- Fnn'rom

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