US1313011A

US1313011A - Roller-grizzly

Info

Publication number: US1313011A
Authority: US
Publication date: 1919-08-12
Anticipated expiration: 1936-08-12

Description

L. FINGER.

ROLLER GRIZZLY. APPLICATION FILED AUG-10.1918.

Patented Aug. 12,1919.

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ROLLER GRlZZLY.

' nvmvron a: ATTORNEYS WITNESSES L. PING-ER.

ROLLER GRIZZLY.

APPLICATION FILED AUG-10,1918. 1313,01 1 Patented .121919 g S 3 SH HEET 3.

IN VENTOR LEO P/NGf/ WITNESSES A TTORNEYS UNITED STATES PATENT OFFICE.

LEO PING-ER, OF FALLON, NEVADA, ASSIGNOR OF ONE-HALF TO ZEB KENDALL, OF SAN.

' FRANCISCO, CALIFORNIA ROLLER-GRIZZLY.

' Specification of Letters Patent.

Patented Aug. 12, 1919.

Application filed August 10, 1918. Serial No. 249,286.

To all whom it may concern:

Be it known that I, LEO PINGER, a citizen of the United States, and a resident of Fallon, in the county of Churchill and State of. Nevada, have invented certain new and useful Improvements in Roller-Grizzlies, of which the following is a specification.

My invention is an improvement in grizzlies, and has for its object to provide a grizzly of the roller type, especially adapted for use in ore milling and in connection with rock crushing, to handle mine run of ore, coal or quarry product, wherein the grizzly is composed of rollers arranged in parallel spaced relation, and all driven in the same direction.

In the drawings Figure 1 is a side view of the improved grizzly,

Fig. 2.is a top plan View, I Fig. 3 is a side view of one of. the sprocket wheels,

- Fig. 4 is a longitudinal section of a roller, Fig. 5 is a similar View of another type of roller;

Fig. 6 is a section on the line 6-6 of Fig. 5,,.1ooking in the direction of the arrows a jacent to the line;

Fig. 7 is a transverse vertical section of.

another type of roller;

Fig. 8 is a longitudinal section of the shell of another type of roller;

Fig. 9 is a longitudinal section of one of.

the journal pins.

The improved grizzly is arranged upon a suitable supporting frame, to be described,

' which is inclined as shown in order that the grizzly will be inclined. The grizzly is composed of a series of rollers arranged in parallel spaced relation, the spacing depending upon the purpose for which the grizzly is to be used. Each roller, to be presently described in detail, has reduced journal pins at its ends which are received in bearings on the frame.

The frame consists of side members, each of which is composed of two similar channel plates 1, the plates of each pair being arranged with their channels facing away from each other, and the webs of the said plates of the pairs are held in parallel spaced relation by means of rods 2. Each bers of the pairs. Spacing collars or washers 4 are arranged on the rods between the members of the respective pairs for properly spacing the members of the pairs with re spect to each other, and the nuts 3-lock the members of the pairs on the collars and hold the pairs in spaced parallel relation.

In the type of roller shown in Figs. 1 to 4, a shaft core 5 is provided. having reduced journal pins 6 at its endsfor engaging bearings 7 held on the upper edges of the pairs of channel plates of the frame. 7 A shell 8 is mounted on this shaft, the said shell being of a diameter to. receive the shaft, and the shell may be held to the shaft in any suitable or desired manner, as, for instance,

the frame members 1, as shown more particularly in Fig. 4. Each end of each bearinghas a depending threaded stem 10, which passes downwardly between the channel bars 1 of the pairs, and these stems are engaged by nuts 11 below the lower flanges of the pairs .of channel plates. It will be obvious that by loosening the nuts 11 the bearings may be independently shifted longitudinally of the frame members to vary the spacing of the rollers with respect to each other. 7

The endmost roller at the upper end of the grizzly is provided with a pulley 12 which is engaged by a belt 13, connected 7 with any suitable source of power to drive the grizzly, and all of the rollers are connected to rotate together by means of an endless chain 14, which engages sprocket wheels 15 arranged on the journal pins at one end of the'rollers and at that end adjacent to the pulley 12. Each of these sprocket wheels shown in Fig. 3 is keyed to the journal pin by means of a key 16, and the under run of the chain is supported by rollers 17 to prevent sagging of the same. The journal pin of each roller which carries the sprocket wheel 15 has a reduced portion for receiving the sprocket wheel and the key 16 is prevented from escaping from the keyway by means of a Washer 17 which is held on the reduced portion of the journal pin by means of a nut or the like. 7

The type of roller shown in Fig. 5 is composed of a shell 18 which has a bore flaring at each end. J ournal pins 19 have heads-20 which fit within the flared ends of the bore of the shell, and the journal pins are held in place by a rod 21 which extends through axial openings in the journal pins and has its ends threaded, as shown, for engagement by nuts 22. At the outer end of that journal pin having the reduced portion 23 for engagement by the sprocket wheel a Washer 2-1L is arranged on the rod 21 between the end of the journal pin and the nut, for holding the key in place. Dust collars 25 are arranged on the journal pin at the end of the shell, and the shell may be keyed to the heads 20, as shown.

In the embodiment of the invention shown in Fig. 7 the bore of. the shell 26 is cylindrical, and the shaft 27 is arranged within the bore, the shaft loosely fitting the bore. Dust collars 30 are arranged on the journal pins 29 of the shaft, the said collars abutting the ends of the shell, and the shell is held on the shaft by any suitable means, as, for instance, keys.

The keys which lock the shell of Figs. 5 and 8 to the journal pins are received in registering

keyways

32 and 33 in the shell and in the head respectively. In each construction of roller it will be noticed that the dust collars extend slightly beyond the peripheral surface of the roller, to form a species of flange or rib at each end of the shell.

In operation, the material to be screened is passed down over the rollers from any suitable feeding mechanism, the said rollers being adjusted apart from each other the proper distance for the purpose desired. It will be obvious that in order to make more than one classification of the ore by the grizzly, the rollers may be varied as to their spaces. As, for instance, the first few rollers may be set to handle the finest, the other rollers being adjusted to pass the coarser rock, the very coarse'rock being passed over the endof the grizzly into the bin. If a crusher or other machine is used, for reducing the oversize, the grizzly becomes an automatic feeder. The shells may be either smooth or roughened, as may be desired. I claim A frame for roller grizzlies consisting of a pair of spaced apart side members each comprising a pair of vertical channel beams having a vertlcal web and top and bottoms flanges, the channels of each pair faeingtb'fi outwardly away from each other, and the, webs spaced from each other constituting. a continuous vertical slot from end to end, tie bolts passing through said channel beams, and connecting the side members, spacing blocks on said rods between the vertical web-s, nuts threaded on said tie rods abutting the outer faces of said webs of each pair, a series of bearing blocks mounted on the upper flanges of the beams and bearing on each side of the slot so formed, stems projecting downwardly from each bearing block between the webs,-and nuts on the lower ends of said stems and engaging the lower flanges of the beams, whereby the bearing blocks may be uniformly adjusted longitudinally, to vary the distance between rollers journaled thereon, and then held in, such adjusted relation.

LEO rinses,