US1811756A - Separating jig - Google Patents

Description

P. MARADEO' SEPARATING JIG I June 23, 1931.

Filed Nov. 24, 1928 4 Sheets-Sheet 1 R o T N E V N ATTO RNEY P. MARADEO SEPARATING JIG June 23, 1931.

Filed Nov. 24, 1928 4 Sheets-Sheet 3 I II,

mlj mn Nil Ill P6791" 77Zaraaeo ATTORNEY WITNESS P. MARADEO SEPARATING JIG June 23, 1931.

Filed NOV. 24, 1928 4 Sheets-Sheet 4 INVENTOR ATTORNEY fife/ 7/Zaredea Patented June 23, 1931 PETER MARADEG, or nEsQUEHoNING, PENNSYLVANIA SEPARATING are Application filed November 24, 1928. Serial N0.'321,628.

This invention relates to a jig for the sep aration of minerals or other material by the utilization of the differences in their-specific gravities, the invention being mainly de- 35 signed for the separation of coal from rock orslate, and the general object of the invention being to make the operat'ion of the device entirely automatic so that it requires no hand labor.

This invention also consists in certain other features of construction and in the combina tion and arrangement of the several parts, to be hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the appended claims.

In describingthe invention in detail, reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which V Figure 1 is a plan view of the apparatus.

Figure 2 is a vertical sectional view. Figure 3 is an end view, with parts in section. j

Figure 1 is a section on lined- 4 of Figure 2. V Figure 5 is a sectional'view through Figure 4:, with parts broken away.

Figure 6 is a view similar to Figure 5, but showing the parts ina diiferent position.

Figure 7 is a'detailview showing howthe latch member engages the sliding bar to hold the same in retracted position.

Figure 8 is a detail sectional view showing how the rack bar is associated with the" V plunger. 7

In these views, the numeral 1 indicates a supporting frame in which is placed a tank 4 2, the upper part of the tank containing the partitions 3 which divide said upper part of the tank into a plunger chamber A and a separator or receiving chamber B for receiving the material to be separated. A chute G is formed at one side of the chamber B by the adjustable gate 3 which is slidably arranged in the guideways 4; attached to the walls of the tank, this chute receiving the lighter materials from the chamber The gate may be adjusted to any desired position by means of the rack bar 5 attached to the upper end charged into the chute 15.

of the gate-and having a handle 6 at itsupper end, the toothed portion of the rack bar being pressed against a toothed member 7 by a spr1ng'8. Thus the gate can be adjusted to any desired position to regulate the amount of material passing from the receiving cha1nber into the chute. The material passing into the chute gravitates into the lower end of an elevator 9 which delivers the material into a chute 10. Y V

A screen 11 forms the bottom of the chamber B and a portion 11' of this screen is con nected bya hinge 12 to a part of the chamber so that said section can swing downwardlyand when in its lowest position, the free end of the hinged section will rest against the upwardly extending-part 13 of'an elevator 14 which delivers the .material dropping from the hinged section into the chute 15.

A plunger 16is arranged in the plunger 7 chamber A and has a pair of connecting rods 17 connected therewith, the upper ends of these rods being connected with a pair of cranks 18 of a crank shaft 19 journaled on the top of the tank and which is driven from 5 any suitable source by means of the belt 20 passing over a pulley 21 on the shaft. The conveyor in the elevator 9 is also driven from this shaft 19 through means of the belt 22 which passes over a pulley 23 on the shaft 19.and over a pulley 24 on the upper shaft of the conveyor. A pair of weighted levers 25' is pivoted to a part of the frame and the front ends of these levers are connected'by the cables 26 with the'hinged section 11 of v' the screen, weights 27 being placed on the other ends of the levers. These weights act to hold the hinged section of the screen in closed position, but when a certain amount of material collects on said section, the section will drop so that this material will pass therefrom upon the elevator 14 and thus be disv The hinged sec tion will then be closed again by the weights.

'In order to prevent the hinged section from closing before all the material passes there from, I provide a dashpot 28 in the lower part of the tank, the piston 29 of which is connected by a rod 30 with the hinged section. Thus the hinged section can move downwardly without being retarded by the dashpot, but its upward movement is retarded by the dashpot in the usual manner, so that the material collecting in the bottom of the chamber will have a chance to be discharged before the section is closed by the weighted levers.

I provide motor 31 for driving the conveyor of the elevator 14 through means of the belt 32 and the pulleys 33 and the circuit of this motor is closed by the lowering of the hinged section through means of a switch arm 34 connected with an extension 35 of one of the cables 26, this arm engaging a spring actuated part 36 when the arm is moved downwardly by the opening of the hinged section of the screen so as to close the circuit from the battery 37 to the motor. Thus the conveyor of the elevator 14 will only operate when the material is being discharged thereon by the downward movement of the hinged section 11.

From the foregoing it will be seen that when a proper amount of water is placed in the tank and the material to be separated is placed in the chamber B, the movement of the plunger 16 will agitate the water so that the coal, which is lighter than the rock and slate, will be forced to the top and over the gate into the chute C, the heavier material collecting on the bottom of the screen. Vhen the weight of this material on the screen overbalances the weight 27, the hinged section of the screen will drop, thus discharging the material on to the elevator and at the same time closing the switch of the motor 31 so that the elevator will be actuated and thus the heavier material will be carried up by the elevator and deposited into the chute 15. The hinged section will then return to closed position. However, this return movement is slow enough to give the material chance to drop upon the elevator and the elevator to lift the same before the switch is opened.

Water is delivered into the tank from a suitable source of supply by a pipe 38 in which is placed a control valve 39, this valve being normally held in closed position by a weight 40 connected to the handle of the valve by a cable 41 which passes over a pulley 42 supported on a part of the frame. This cable 41 is also connected to a bucket 43 after passing over a pulley 44, this bucket being of such a size that when it is full of water, it will be heavier than the weight and thus the bucket will open the valve 39 and permit water to flow into the tank.

A sludge discharge chute 45 is fastened to the bottom of the tank and is closed by a sliding door 46, this door being normally held in closed position by a weight 47 which is connected with the door by a cable 48 which passes over the pulleys 49. A second bucket 50 is connected with the door 46 by a cable 51 passing over the guiding means 52, this bucket, when full of water, being heavierthan the weight 47 so that it will move the door to open position. Branch pipes 53, connected with a supply pipe 54, extend over the buckets so that when the valve 55 in said supply pipe is open, water will flow into the buckets to fill the same so that they will move downwardly and thus open the valve 39 to admit water into the tank and open the door 46 so that the sludge collecting in the bottom of the tank will be discharged therefrom.

A valve 56 is arranged in the bottom of each bucket and each valve will be moved to open position as the bucket nears its downward limit of movement by striking a block 57 whereby the water will run from each bucket,

thus lightening the same so that the weight which is attached to each bucket will raise the bucket and close the valve or the door. The valve in the bucket 50 is much larger than that in the bucket 43 so that the water will drain from said bucket 50 sooner than it will drain from the bucket 43, thus permitting the door to close before the valve in the water supply pipe is closed so that the tank can be filled after the door is closed and before the water supply is cut off.

In order to prevent the buckets from rising too soon, I: provide a pair of spring actuated latches 58 for each bucket, the latches engaging fianges 59 on the bottom of each bucket when the bucket reaches its lowest position so that the bucket is held by the latches in lowered position. A float 60 is arranged in each bucket and a pair of U-shaped members 61 is connected with each float, these members passing over the top of the bucket and engaging parts on the latches as the float nears the bottom of the bucket'so that the latches will be moved to releasing position when the bucket is empty so that the weight can return the bucket to raised position and close'the valve, the other bucket acting to close the door.

The water is permitted to flow into the buckets at predetermined times through means of a sliding bar 62 connected by cables 63 with the handle 55 of valve arranged in the supply pipe 54-, this bar being normally held in a positionwith the valve open by a spring'65, with a latch'tifi engaging a keeper part 67 on the bar for holding the bar in a position with the valve closed. The latch is normally held inlatching position ly a. spring 167 and it is moved to releasing position by the crank end of a shaft 68 jOll1' naled in a housing 69 and in a bracket 70. An arm 71 is fastened. to the shaft and is lo cated within the housing 69. and said arm is engaged by a trip finger 72 on a shaft 73 journaled in the housing and to which a ratchet wheel 7 is connected. A spring dog 75 is pivotally arranged in the housing and engages the ratchet wheel in such a manner that when the dog is moved by a cami fi on a shaft 77 ournaled in the housing, the wheel is moved one step. A'train of gearing 78 connects the shaft 77 witha shaft 79 which is driven from the shaft 19 through means of the belt 80 and the pulleys 81. Thus after the shaft 19 has made a certain number of revolutions, the resultant movement of the train of gears will have moved the pawl a sufficient number of times to cause the ratchet wheel 74 and its shaft 7 3 to make a complete revolution and upon each'revolution of the shaft 73, the'trip finger72 will engage the arm 71 on the crank shaft 68 so that said shaft will be rocked and thus its cranked end, engaging the element 66, will move said latch toreleasing position, which will permit the spring 65 to move the bar 62 to a position where one of the cables 63 will move the valve to open position so that water can flow into the buckets. The bar is returned to its first position where it will be engaged and held by the latch 66 through means of the cable 82 which connects the bar with the bucket 43, whereby as the bucket descends, the bar 62 will be moved to a position where the valve 64 will be closed and the bar will be held in this position by the latch 66. Thus at certain intervals of time, the sludge door 46 will be opened and water admitted to the tank to clean the tank and then the door will be closed and the water controlling valve closed automatically so that the device will continue to operate. 7

A. rack bar 83 is slidably mounted in a groove 84 formed in one side of the plunger and the teeth of this bar are engaged by a latch 85 carried by the plunger. This bar has a foot portion 86 which, if the screen should break and the material thereon passinto the lower part of the tank, would engage such material on the downward movement of the plunger and thus the rack bar would be forced upwardly past the latch, the latch acting to prevent the bar dropping again. When the bar is so raised on the upward movement of the plunger, its upper end would strike an arm 87 on the shaft 68 so that the shaft would be rocked, thus causing the cranked end of the shaft to move the latch 66 to releasing position so that water would flow into the buckets and the buckets would drop, thus opening the door 46 and causing water to flow into the tank so that the material would be discharged from the tank. A lever 88 is pivotally arranged on the top of the plunger and is connected to the latch 87 by a flexible member 89.

A trip 90 is arrangedin the plunger chamher and is carried by a shaft 91 which has fastened thereto an arm 92 which is connected by a cable 93 with the bucket 50, so that as the bucket drops, the shaft 91 is rocked, thus moving the trip 90 into the path of the lever 88 so that said lever will be rocked on the upward movement of the plunger, which will movethe latch 85 to reof the plunger, as shown in Figure 8. Thus the rack bar is returned to its normal position on the upward movement of the plunger.

As will be seen, the agitation of the water in the tank by the plunger will separate the lighter materials from the heavier materials, the lighter materials passing to the chute C from which they are taken by the elevator 9 which is constantly in operation. The heavier materials, collecting on the screen, will, when they overbalance the weights 27, cause the hinged section of the screen to drop, thus discharging such materials on to the elevator 141;, the motor of which begins to operate when the hinged section of the screen is lowered'so that these heavier materials are removed from the apparatus. The screen closes again and breaks the circuit of the motor after the materials have been discharged. After certain intervals of time, water is admitted to the'buckets so as to open the discharge door 46 and admit water into the tank to clean the same after which the door is closed. as well as the valve in the water pipe. Thus the tank is periodically cleaned w If anything should happen to the screen which would permit the material thereon to drop into the tank, the rack bar. 83 would come into operation to actuate the means for discharging the material from the bottom of the tank. Thus the device is entirely automatic in operation and eliminates hand labor.

It is thought from the foregoing description that the advantages and novel features of the invention will be readily apparent.

It is to be understood that changes may be made in the construction and in the combination and arrangement of the several parts, provided that such changes fall within the scope of the appended claims.

: What I claim is V 1. A jig of theclass described comprising a tank having a plunger chamber, a plunger in the plunger chamber, means for operating the plunger, a discharge door in the bottom of the tank, valve controlled means for supplying water to the tank, automatic means for opening the door and the valve at predetermined intervals, such means being operated from the plunger actuating means, means whereby the door is closed before the closing of the valve and means associated with the I meansif the material should collect in the bot-' tom of the tank through damage of the screen, said means associated with the plunger including a member operated by impact with the material in the bottom of the tank.

2. A jig of-the class described comprising a tank, a discharge door in the bottom of the tank, a water supply pipe for delivering water to the'tank, a valve in said pipe, means for normally holding the door closed, means for normally holding the valve closed, a pair of buckets, means for connecting one bucket to the valve for opening the valve when the bucketdescends, means for connecting the other bucket to the door for opening the door when said bucket descends, means for supplying water to the buckets, such means containing a valve, a sliding bar connected with the valve, spring means for holding the bar in a position with the valve in the bucket supply means open, a lat h for holding the bar in a position witn said valve closed, trip means for movin the latch to releasing position, a train of gears for operating the trip means at predetermined intervals, means for emptying the buckets when they reach their lower limit of movement whereby the door and valve closing means will return the buckets to raised position and means operated by one bucket for returning the slide bar to its iirst position.

A jig of the class described comprising a tank, provided with a plunger chamber and a separator chamber, a screen in the separator chamber, a plunger in the plunger chamber, means for operating the plunger, a dis charge door in the bottom of the tank, a water supply pipe for delivering water to the tank, a valve in said pipe, means for normally holding the door closed, means for normally holding the valve closed, a pair of buckets, means "for connecting one bucket to the valve for opening the valve when the bucket descends, means for connecting the other bucket to the door for opening the door when said bucket descends, means for supplying water to the buckets, such means containing a valve, a sliding bar connected with the valve, spring means for holding the bar in a position with the valve in the bucket supply means open, a latch for holding the bar in, a position with said valve closed, trip means for moving the latch to releasing position, a train of gears for operating the trip means at predetermined intervals, means for operating the gears from the plunger operating means, means for emptying the buckets when they reach their lower limit of movement whereby the door and valve closin means will return the buckets to raised position, means operated by one bucket for returning the slide bar to its first position, a rack bar slidably arranged in the plunger and having a toot portion for engaging material in the bottom of the tank, due to the material dropping from the separator chamber by the breakage of the screen whereby the bar will. be raised, means operated by said bar on the upward movement of the plunger for releasing the latch oi" the sliding bar and means actuated by one of the buckets for causing the rack bar to return to its normal position.

A jig of the class described comprising

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