US1024647A - Ore conveyer and classifier. - Google Patents

Description

D. J. NEVILL. ORE CONVEYER AND GLASSIFIER.

APPLIGATION FILED Nov. s, 190e.

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D. J. NBVILL. ORB GONVEYBR AND GLASSIFIEB.

APPLIGATION FILED NOV. 5| 1908.

Patented Apr. 30, 1912.

4 SHEETS-SHEET 2.

D. J. NEVILL.

ORBOONVEYBR AND CLASSIFIER.

APPLIOATION FILED Nov. 5. 190s.

1 ,024,647. Patented A111130, 1912.

4 SHEETS-S HEBT 3.

wit man Snowdon nv A www.

I D. J. NEVILL. ORE CONVEYER AND CLASSIFIER. APPLICATION FILED Nov. 5, 190e.

1,024,647. Patented Apr.3o,1912.

4 SHEETS-SHEET 4.

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@FlQE DAVID J'. NEVILL, OF DENVER, COLORADO, ASSIG-NOR T0 JOHN VAN NOSTRAND DORR, 0F LEAD, SOUTH DAKOTA.

ORE CONVEYER AND CLASSIFIER.

recrear.'

Specification of Letters Patent.

Patented Apr. 39, 1912.

Application led November 5, 1908. Serial No. 461,211.

To all whom it may concern.:

Be it known that I, DAVID J. NEVILL, who

useful Improvements in Ore Conveyers andv Classifiers; and I do hereby declare the following to be a full, clear, and eXact description of the invention, such as will enable others skilled in the art to which itvappertains to make and use the same.

This invention relates to ore conveyers and classifiers, and especially to mechanical movements for actuating the rakers of the ore conveyers and classifiers.

An object of the present invention is to provide an ore conveyor and classifier having a raker or rakers therein which may be operated at different levels.

A further object of the invention is to provide in an ore conveyer and classifier a raker or rakers, the different ends of which may be independently raised or lowered relative to the bed.

A further object of the invention is to provide in an ore conveyer and classifier improved mechanism impartinga new and desirable motion to the rakers.

With these and other objects in view, the invention comprises certain novel constructions, combinations and arrangements of parts, as will be hereinafter fully described and claimed.

In the drawings z-Figure 1 is a perspective view of the improved ore'conveyer and classifier. Fig. 2 is a view of the conveyer and classifier in side elevation with the side walls of the body removed showing the rakers in side elevation. Fig. 3 is atop plan view. of the ore conveyer and classifier. Fig. 4 is a view of the operating mechanism at the upper end of the conveyor and classifier. Fig. 5 is a transverse View of the rakers and operating mechanism.

Like characters of reference designate corresponding parts throughout the several views.

The improved ore conveyer and classifier forming the subject-matter of this application comprises a settling trough having a bed 10, side walls 11, and a low central partition 12, dividing the body into two longitudinal compartments separated by the low upper ends the partition and such body supported at an inclination in any approved manner as by the base, 13.. Upon the base or body are .erected uprights 14 and 15 carrying at their upper ends shafts 16 and 17, respectively, upon which said shafts are respectively pivoted bell crank levers 18 and 19.

From the horizontally extending arms of the bell crank levers 18 and 19 depend links or hangers 20 and 21 carrying at their lower ends universal joints 22 and 23, respectively, connected pivotally with supports 24 and 25. At their lower extremities or bases the supports 24 and 25 are connected with longitudinally extending frame pieces 26 forming the main frame of the rakes which said frame pieces 26 are connected by laterally extending cross-pieces 27, the frame pieces 26`being preferably constructed of channel iron, while the cross-pieces 27 are preferably constructed of angle iron, as shown part-icularly in Fig. 2.

Connecting the upper extremity of the bell crank levers 18 and 19 is a rod comprising thesections 28 and 29 connected by a turn buckle 30 whereby both of the bell crank levers will be operated in unison, but the angle of such bell crank levers relative to each other may be changed by manipulating the turn buckle 30, and shortening or lengthening the rod composed of the sections 28 and 29.

At the end of the body uprights 31 and 32 are erected, and a power shaft 33 journaled thereon carrying any approved means for applying power thereto as the belt pulley 34, and with a pinion 35 rigidly carried larly journaled upon the uprights 32. Upon opposite sides of the uprights 32 theshaft 37 carries cams 38 and A39, respectively. Pivoted upon the uprights 31 and 32 are also levers 40 and 41 having at their lower ends rollers 42- and 43, bearing upon the peripheries of the cams 38 and 39. At their cated as indicated at 44 producing thereby a bearing slot in which are pivotally mounted cross-heads or pins 45 and 46, carried by sleeves 47 and 48, respectively, through which said sleeves extend rods 49 and 50 levers 40 and 41 are bifurrespectively. The rods 49 and 50 are screwl threaded as at 51 and inserted through yokes or stirrups 52 and 53, whereby a rotation of the rods 49 and 50 will vary the distance between the sleeves 47 and 48, and the yokes etc., from the machine.

In operation the water, sand and slime is admitted to the settling trough through the feed trough 6l' in the usual way and stands at the .level indicated by the dotted line in Fig. 2. The solid material settles to the bottom of the trough while the liquid and slime flows over into the discharge trough 62. The trough may, when desired, be drained through a discharge opening 63. rlhe rake mechanism is set` in motion by rotating the drive shaft, 33 which transmits motion to the shaft 37, thus rotating the cams 36 and 39 to give an irregular motion to the levers 40 and 4l. By reason ot the rods 49 and 50 connecting the levers with the bell crank levers 18 and the rods connecting the bell crank levers, the motionl@ and 19, which motion is transmitted through. the links or hangers 20 and 2l to the supports 24 and 25, and carrying therewith the rakes. Art the same time the entire 'rake structure is given a longitudinal motion by the rotation of the crank arms 55 and 56, which motion is transmitted through the pitmen 59. llt will thus be seen that the cams furnish an irregular up and down reciprocating motion to the rakes while the crank arms transmit regular longitudinal reciprocating motion 'to the rake, the resultant motion being that the rakers are drawn. toward the front ot'the machine,while down, and moved rearwardly ot the lmachine, while raised. rThe solid material is thus moved by the rakes to the discharge end ot the machine while the slimee and other .liquid material tlow over into the discharge reageer tion the crank arms 53 and 54 are manipulated to raise the entire rake suihciently to permit operation and to rake oft only7 part of the settled'material. As the machine continues to operate the rakes are lowered by the reverse manipulation ot the crank arms 53 and 54 until in normal working position.

it times it is desirable to work the rakes with the opposite ends at a diierent height above the bed of the machine and this is accomplished by manipulating the turn4 buckle 30 increasing or decreasing the length of the connectingrod whereby when the rod is shortened the lower end of 'the rake is raised and when lengthened the lower end is lowered.. 'lakenin conjunction with the manipulation. of the crank arms 53 and 54, the rakes may be given any necessary .operative relation to the bed ot the machine.

lhat l claim. is

l. An ore conveyor and classilier, cornprising a settling trough, a rake mounted to reciprocate therein, bell crank levers, means for operating them, and links or hangers connecting the bell crank levers with the rakes and which-have universal joints therewith.,

2. ln an. ore conveyor and classifier, the combination ot a settling trough, a rake mounted to reciprocate therein, hell-crank levers mounted at opposite ends ot the trough, jointed connections between the rake and the levers, a rod connecting the hellcrank levers, an operating lever, a rod connecting this lever with the bell-crank lever at the delivery end ot the apparatus, and means for adjusting the .length ot the rod whereby both. bell-crank levers may be moved simultaneously to raise the rake 1n the trough and to thus adjust its position therein.

3. ln an ore conveyor and classilier, the combination. vof a settling trough, a rake mounted to reciprocate therein, lcell crank levers mount-ed at opposite ends the trough, jointed connections between the rake and the levers, a rod connecting the bell crank levers, devices :tor adjusting the length oit the rod, an operating lever, rod connecting this lever with the bell crank lever at the delivery end ot the apparatus, and means for adjusting the length et the rod whereby botli bell crank levers may be moved simultaneously to raise the rake in the trough and to thus adjust its position therein.

ln testimony whereoiE l have attived my signature in presence ot two witnesses.

Dillll) d. lll .s lllili.'

l/litnesses:

Canne tlfrrirnnnnn, Arianna 1L. Voet.

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