US1088682A - Head-motion for concentrating-tables. - Google Patents

Description

W. P. DEISTBR.

HEAUMOTION POE CONUENTRATING TABLES.

APPLICATION FILED JUNE 20,1913.

PateutedMar. 3, 1914,

3 SHEETS-SHEET 1.

INVENTOR 1 km MAM W. DBISTBR. HEAD MOTION FOR GONCBNTRATING TABLES. APPLICATION FILED JUNE 20,1913.

1,088,682. Patented Mar. 3, 1914.

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WITNESSES INVENTOR W. F. DEISTBR.

HEAD MOTI ON FOR (JONOEN'IRATING TABLES.

APPLICATION FILED JUNE 20, 1913,

1,088,682. Patented Mar. 3, 1914.

3 SHEETS-45113111 3.

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WITNESS ES INVENTOR WILLIAM F. DEISIER, OF FORT WAYNE, INDIANA, ASSIG-NOR COMPANY, OF FORT WAYNE, INDIANA T DEISTIDR MACHINE A CORPORATION OF INDIANA.

HEAD-MOTION FOR CONCENTRATING-TABLES.

Specification of Letters Patent. Application filed June 20, 1913.

Serial. No. 774.787.

To all whom it nary concern Be it known that I, WiLnL-iu F. .Duis'run, residing; at Fort Wayne, in the county of Allen and State of Indiana, a citizen of the Utility] States, have invented or discovered certain new and useful improvements in Head-Motions for Concentrating-Tab]es, of which imprm'en'ients the following is a speciiication.

The invention described herein relates to certain improvements in meclmuism for impar ing; a vibratory motion to concentrating tahlesrand has for its object a construction whereby a double differential movement may be imparted to the table, and .it is a further object ot'the invention to provide for a vari ation of the movements of the table in accordance with the grade of materials operated on.

The invention is hereinafter more fully described and claimed.

in the accompanying drawings forming a part of this specification, Figure l is a top plan view of a head motion for concentrating tables ei'ubodying my improvement;

Fig. 2 is a sectional elevation of the same, the plane of section being indicated by the line I.l-II Fig. 1; Figs. 3 and t are detail views of certain ative movements, andFig. 5 is a sectional view illustrating a modification-of the means for adjustin the relative positions of the lever; and I ig. 6 is a bottom plan view of the construction shown in Fig.

In the practice of my invention, the power shaft 1 is provided with an eccentric of crank pin 2 on which is loosely mounted a roller 3. This roller operates in the curved seat t formed in the lever 5 adjacent to its .t'ree end. The pivot opposite end of the lever, has either the poo tion forming the journal for the lever made eccentric to the journal portions supported by the bearings 7, or vice versa. This construction affords a convenient means for shifting the lever longitudinally as by applying a wrench to the squared projecting end of the pin and turning the latter lever is shifted relative to its operating crank pin or eccentric and small or relatively large movement of the lever on its pivotal axis can be attained. The purpose of this movement will be hereina'fiter described.

The univem-ent of the lever 5 is transmitted to the concentrating table by a bell crank crank will \ary parts illustrating their relpin 6 supporting the lever, but suitable tented Mar. 3. 1914.

means is interposed between the lever 5 and the hell crank lever whcreliiy the rate of movement of the bell it is drawings, versed. lever 5 has attach block 8 preferably cued steel wearing bear against a con formed by a roller the end of one arm 10 of vcr. The other nected to one end of at dill'ercnt points from the rate of movement of the lever 5.

preferred to transmitting elements as shown Although the motion in the such arrangements may be re- In the pre'terred constructions the ed thereto an angular providcd'with a hardface, and adapted to vex portion preferably 9 loosely mounted ho a bell crank learm .11 of the lever is con- 21 pitman 12 adapted to be connected at its opposite end to a concentrating table. As is spring is so applied part of its operating mechanism as to customary intho art, a to the table or some exert a constant pull in the direction of the arrow ac, and thereby hold the roller 9 in contact with 11. should be adjust the angular block 8. It is preferred that the connection of the pitman to the arm able so that the length of stroke imparted to the concentrating table may be varied.

The radius of curvature of the preferably greater than the radius of the roller 3, so that the roller-on the curved forth according to 1:1 This will he clearly ing that the crank seat 4; is

, point of bearing of the seat will shift back and 1e position of the crank. understood by suppospin in the position shown in Pig. 3, at which time the point of hearing-of the roller on a vertical plane pa of the shaft tion stated there is l and crank pin 2. observed that when the parts are in the posithe seatwill be in ssiug through the axes It will be a relatively large space the curved seat and the periphery of the disk measured radially of the disk. As the shaft rotates tion of the arrow g the roller being. loose on the crank pin will shifting its point of toward a. quickest downward bearing of the roller (4. This outward'slnftmg of the in the direc- 4 roll on the curved seat contact thereon from b As the crank approaches are of movement the point of on the seat will be at point of bearing of the roller on the seat during the quickest downward will modify to some manta of the lever.

movement of the crank extent the rate of move- As the crank pm passes Cir beyond a line from the center of the shaft through the point a, the point oi? contact of the roller on the seat will begin 'to' move to the right and as the crank pin approaches the are where its upward movement is most rapid the point of contact of the roller on the seat will be at 0 or nearer the pivotal point the lever and hon-cc the movement oi? the lever upward will be As the crank pin moves from the position shown in Fig. 3, the lever 5 is forced down and in its movement the arm 10 of the bell crank lever is also forced down. it will be observed that the point of bearing of the roller 9 on the block 8 is closely adjacent. to the apex of the block, and hence the downward movement of the arm 10, while the apex of the block is moving into a vertical plane coincident with the axis of the shaft 1 will be slightly more rapid. than that of the lever 5, until the axis of the roller 9 is also coincident with the same plans. As the apex of the block passes beyond this plane, the movement of the arm 10 Will be gradually reduced at a rate approximately proportional to the shifting of the point of contact of the roller 9 from the apex of the block.

By shifting the relative longitudinal position of the lever 5 and arm 10, which can be efiectedby turning the pivot pin (5, as hereinafter stated, the, range of movement of the point of contact of the roller on both sides of the apex of the block can be made equal, be made reater on the side oi than oiftbe sic e c. Tins shifting of the point out contact effects a very material change in the character of the vibrations imparted to the concentrating table. Indicator cards taken with lever adjusted to dii'lerent positions clearlv show the difference of movements imparted to the table by reason of such adj nstments.

In lice. of shifting the lever 5 longitudinally above described, the angular block 8 may be secured to a slide 13 movably mounted on the lever, and adapted to'be' shitited to different positions therealong as shown in Figs. 5 and (5. In the construc-- tion shown the slide is supported by rod 14: having a tapering portion so that by shifting the rod longitudinally the'slide can be drawn tightly to its seat on the lever.

The movement of the slide along the lever can be effected by any suitable means, as a bolt 15 screwing through a. log on. and having a swivel connection. to the sa. ittempts have been made to ob ferential movement by means of lovers ingz one on the other in such manner t the point of beaing of one lever on ther will be shifted relative to the "zivotal points of levers during their ope tio'n. this form of head motion the ie ers have been arranged practically parallel w th their point of contact in a plane passing; through pivotal [is the mo e of: movement of these levers is small .:ollows that the change of location of ther r point of contact will be'small and the diitierentiai duo to such a change willbe smaller and i1nproperiy timed. in the constructi n set forth the levers are arranged at an an each other so that a slight chairs in position of the levers will considerabie change in the positions of their pointat contact relative to their pivotal points. And iurther the angular block 8 serves to increase the differential due to and in the same direction as is eliected by the shining of the point of contact.

I claim herein as my invention:

1. A head motion for a concentrating table having in con'ibination a plurality of pivoted. members one operative by the other means for imparting a differential movement to one of said members, means for transmitting motion from the second memher to the part or element to be operated and means interposed between said the members for imparting an abnormal move ment to the second member.

2. A head motion for a concentrating table having; in. combination a plurality of pivoted members, one operative hf; other, means for oscillating one of said members means for transmitting the move ment of the second member to the or element to be operated, and means interposed between said members imparts: an abnormal movement to the membcr.

8. A head motion for a concentratin table having in combination a plural pivoted members, one operative is; other, means for oscillating one at members, an angular block slide on bearing portion on the respective members, and means for transmitting the moveme table, having in combination a pi'uraiii pivoted members, one operative by other, means for oscillating one of members, an angular block and a bearing portion on the respective members, means for adjusting; the relative'positions oi the block and curved bearing portions, and means for transmitting the movement of the second member to the "part to be operated.

A head motion for a concentrating table, having in combination a plurality of pivoted members one operative by the other, means for oscillating one of said members, an angular block and a curved Ems-wing; portion on the respective members, UJPEVHF; for shifting one of the members i0ngizmdinally, and means for transmitting the motion of the second member to the part to be operated.

6. A head. motion for a concentrating tabie having in combination a plurality of pivoted members, means for oscillating one 16 of said members, an angular block on said membeign rolier looseiy mounted on the second member and forming a bearing for the an ular block, and means for transmitting the motion of the second member to 20 be part to be operated.

in testimony whereof, I have hereunto set my hand.

WILLIAM F. DEISTER. Vi'itnesses:

IIELE'NA Ennm'm',

( rmmnvon Lorne ALTER.

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