US719402A - Concentrating-table. - Google Patents

Description

No. 719,402. PATENTED JAN. 27, 1903. A; R. WILFLEY'. GONGENTRATING TABLE.

APPLICATION FILED JAN. 71 1902.

30101121 2 BEBETB+SEEBT 1.

THE mums PETERS 09.. PHOTO-LUNG" msmnnmn. a c,

No. 719,402. I PATENTEDJAN. 27; 1903. A. R. WILFLEY. GONGENTRATING TABLE.

APPLICATION I'ILBD JAN. 7, 1902.

10 MODEL. 2 sums-41mm 2.

FFTCQ ARTHUR R. WILFLEY, OF DENVER, COLORADO.

CONCENTRATlNG-TABLE.

SPECIFICATION forming part of Letters Patent No. 719,402, dated January 27, 1903.

Application filed January '7, 1902. Serial No. 88.781. (N0 model.)

To aZZ whom it may concern:

Be it known that 1, ARTHUR R. WILFLEY, a citizen of the United States, and a resident of Denver, in the county of Arapahoe and State of Colorado, have invented a new and useful Improvement in Concentrating-Tables, of which the following is a specification.

My invention relates to an improvement in concentrating-tables; and it comprehends more particularly certain developments of the machine which I have previously patented and upon which applications are now pending in the Patent Office.

The present invention consists in an improved rocker upon which the table or deck is mounted, the function of this rocker being to greatly facilitate the reciprocating movement of the table or deck in the process of ore concentration and in the accomplishment of this purpose the elimination of friction, so far as possible, or its reduction to a minimum, while at the same time deriving superior results than heretofore and with simplified mechanical instrumentality.

My present invention also consists in certain other mechanical details for carrying out these objects, and these will be hereinafter fully described.

In the accompanying drawings, Figure 1 is a plan view showing these rockers in position beneath the table or deck, their location being indicated by dotted lines. Fig. 2 is a view in side elevation, and Figs. 3 and 4 are enlarged details.

A represents the main frame of the concentrator, it comprising longitudinal sills 1 1 and cross-ties 2 2, securely bolted thereto. On this frame intermediate frame B is supported, and above frame B the concentrator table or deck 0 is located. Frame Bis stationary, although it is capable of being tilted transversely to give the required angle of inclination to the table or deck supported upon it. The table or deck 0, on the other hand, has a reciprocating motion imparted to it by the mechanism disclosed in my former patents and applications or by any approved means.

Interposed between intermediate frame 13 and the table or deck 0 are a set of rockers 3 3 3, preferably three in number. These rockers extend transversely of the concentrator and nearly across the Width of the table. These rockers are preferably made of Wood in dimensions, say, about an inch thick by four and one-half inches in width, giving a radius of two and a fourth inches from the center, and in operation the eifect of a roller, although it is, in fact, only a section through a roller, as each rocker rests or bears upon its lower edge, upon which it turns or rolls. The opposite edges of each rocker are rounded in the arc of a circle struck from the center of the rocker, and these edges are faced with sheet-steel, as at L 4, about an eighth of an inch in thickness, to give the required rigidity and withstand the wear and punishment to which such a part is subjected. Each rocker is located immediately beneath a cross-bar 5, secured to the under surface of the table or deck, and thesecross-bars rest upon the rockers. The rockers are supported by a set of U shaped hangers 0r equivalent means 6 6, there being preferably about three of these hangers for each rocker. These hangers are securely bolted at their upper ends to cross-ties 2 2, between which they are located. The shape of these hangers is such that they form stops at each side of the rockers, and while the rockers may not strike the hangers with each throw of the table, yet they are in position to prevent their play back and forth beyond predetermined points.

This provision is the more important because of the fact that the rockers are held loosely in the hangers and not secured therein. The rockers do not rest directly upon the hangers at their lower edges, but roll upon a die or bar 7, which rests in the bottom of the hangers. The die or bar is of such width relative to the constricted lower ends of the hangers that suiiicient clearance is afforded on either side for any dirt to drop through, so that nothing can accumulate under the rocker to impede its free and even rolling or rocking motion.

From the foregoing it will be seen that the rockers rest loosely and movably upon their bearings in the hangers and the table or deck in like manner is supported upon and by the rockers solely, and when the reciprocating motion necessary to the process of concentration is imparted to the table or deck the latter moves with perfect freedom upon the rockers, forcing them laterally back and forth with its endwise movement within the confines of the U-shaped hangers which support said rockers and afford a limitation to their rocking motion. In this way friction between the parts is eliminated, as the rockers are in the nature of roller-bearings, with the advantage that the rockers are much lighter and take less space than rollers of equivalent diameter, and as a result of their being lighter they will not slip at the end of each stroke of the table or deck. Also an advantage results in the provision of the U shaped hangers, which confine the rockers within restricted bounds.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is i 1. The combination with a frame, and a movable table or deck, of rectangular rockers, extending transversely a considerable distance on each side of the central line of and interposed edgewise between the frame and table or deck and disconnected from each, and means aside from that which moves the table or deck for limiting the movements of the rockers.

2. The combination with a frame, and a movable table or deck, of rectangular rockers extending transversely a considerable distance on each side of the central line of and interposed edgewise between the frame and table or deck and disconnected from each, said rockers extending partly below the surface of the frame whereby means is provided for limiting their rocking movement separate and distinct from the force which moves the table.

3. The combination with a suitable base, and'a concentrator deck or table, of rectangnlar rockers interposed between said parts for the support of the table during its reciprocations, U-shaped hangers for the support of said rockers, and dies supported in the bottoms of said hangers, and upon which the rockers roll, thetwidth of these dies or bars being sufficiently less than that of the hangers to afford clearance for dirt to drop through and prevent its accumulation beneath the rockers.

4. The combination with longitudinal sills, cross-ties secured thereto and hangers located between cross ties and securing them together in pairs, of rockers supported in and capable of rocking in the hangers, the relative location of the rockers and sills being such that the latter prevent end movement of the rockers.

In testimony whereof I have signed this specification in the presence of two subscribing Witnesses.

ARTHUR R. WILFLEY.

Witnesses:

E. BLANCHE BADGER, A. G. WILLIAMS.

Images