US699471A - Apparatus for feeding and tempering foundry-sand. - Google Patents

Description

No. 699,47l. Patented May 6, I902.

A. m. ACKLIN.

APPARATUS FOR FEEDING AND TEMPEBING FOUNDRY SAND.

(Application; filed. Jan. 24 1902.)

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ALFRED M. ACKLIN, OF PITTSBURG, PENNSYLVANIA.

APPARATUS FOR FE EDING AND TEMPERING FOUNDRY-SAND.

SPECIFICATION forming part of Letters Patent No. 699,471, dated May 6, 1902.

Application filed January 24, 1902. Serial No. 91,117. (No model.)

1'0 all whom it may concern.-

Be it known that I, ALFRED M. ACKLIN', a resident of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Apparatus for Feeding and Tempering Foundry- Sand, &c.; and I do hereby declare the following to be a full, clear, and exact description thereof.

My invention relates to feeding and tempering foundry-sand and the like, and has for its object to provide a cheap, simple, and effective device for such purposes which will automatically feed and temper the sand delivered thereto.

My invention consists, generally stated, in the novel arrangement,construction,and combination of parts, as hereinafter more specifically set forth and described, and particularly pointed out in the claims.

To enable others skilled in the art to which my invention appertains to construct and use my improved device, I will describe the same more fully, referring to the accompanying drawings, in which- Figure 1 is a side view, partly in section, of my improved device for feeding and tempering foundry-sand. Fig. 2 is a top or plan view of the same. Fig. 3 is a top or plan view of the clutch employed. Fig. 4 is a detail section of the feed-wheel, and Fig. 5 is a viewof a modification of such feed-wheel.

Like numerals herein indicate like parts in each of the figures of the drawings.

The device as illustrated consists of the receptacle or hopper l, which is of the ordi nary approved construction, provided with the filling-opening 2- at its top and the discharge-opening 3 at its bottom, which enters a chute 4, formed on or connected to a table 5, on which-is loosely supported a vertical shaft 6. The shaft 6 passes up through the table 5 and has a feed-wheel 7 secured at its upper end adjacent to the table 5, which wheel 7 is formed of a series of radial wings 8, extending out from the hub 9 of the wheel 7 and adapted to form spaces or receptacles 10 between them at their outer ends 8, and a ring 11, which extends around said wheel 7 at some distance back from said outer ends 8. These receptacles 10 in the feed-wheel 7 are adapted to pass under the chute 4 and over a discharge-opening 12 in the table 5 at one side of the chute 4, which discharge-open ing 12 leads to a chute 13, which leads to the hopper 14, supported below the table 5 and having its discharge-opening 15 communicating with a receptacle or trough 16, containing a spiral conveyer 17 or any other suitable receptacle desired. The table 5 is hinged at 18 to -a stationary bar 19, mounted in bearings 20, supported on a platform 21, and beyond this hinge 18 the table 5 is provided with a bar 22, extending out therefrom, on which is the Weight 23; The vertical shaft 6 is supported at its lower end by a shaft or sleeve 24, which fits around said shaft 6 by an elongated seat 25 and extends through the platform 21, while the lower end of this shaft or sleeve 24 is provided with a bevel-pinion 26, which meshes with a bevel-pinion 27, located on the power-shaft 28. The upper end of the shaft or sleeve 24 is provided with a clutch member 29, havinga clutch-face 29 thereon, which is adapted to engage with a clutch-face 30 on a clutch member 30, secured to the vertical shaft 6.

Leading from a suitable water-supply is the .pipe 31, which communicates with the hopper'14 and is provided with at hrottle-valve 32 thereon, to which is attached a lever 33,

having a rod 84, connected thereto at one end,

while its opposite end is pivoted or hinged at 34 to a bar 35, connected to the table 5.

The use and operation of my improved de- -vice for feeding and tempering foundry-sand and the like are as follows: Power being applied to the shaft 28 will act to revolve the sleeve 24 and clutch member 29 thereon through the medium of the pinions 26 and 27, and these parts will be operated continuously. Sand is brought to the hopper 1 by an elevator, conveyer, or. other suitable means and is dumped or discharged into said hopper 1 through the filling-opening 2 at the top thereof and through the chute 4, located on the table 5, into one of the spaces or receptacles 10 in the feed-wheel 7. The chute 4, table 5, and feed-wheel 7, with the vertical shaft'6,will be depressed and cause the clutch member 30 on said shaft 6 to engage by its face 30 with the face 29 on the revolving clutch member 29 on the continuously-revolving sleeve 24, and thereby rotate the feed-wheel 7. As the feed wheel 7 is thus revolved a predetermined quantity of material within the receptacle 10 therein will be discharged therefrom through the chute 13 in the table 5 into hopper 11-, lo cated under the same, and into the trough 10, below said hopper 14, where it will be caught by the spiral conveyer 17 and carried to any point or place desired, and as fast as the sand is being brought to said hopper 1 it will fall into another receptacle 10 in the feed-wheel 7 through the chute 4, While another one of said receptacles is discharging its contents through the chute l3 and hopper l-L into the trough 16, so that the table 5, shaft (5, and feed-wheel 7 will always be depressed and the shaft (5 and feed-wheel 7 rotated as long as sufficient sand is brought to the hopper 1. After the supply of sand has been discharged from the feed-wheel 7 the said wheel, with the table 5, carrying the chutes land 13 and the vertical shaft 6, will be raised by means of the weight 23, connected to the bar 22 on said table 5, and thereby disengage the faces and on the clutch members 29 30, so that said table 5, shaft 6, and feed-wheel 7 will in their raised positions be ready for another qnantity of sand to be discharged from said hopper 1 into one of the receptacles 10 of the seed-wheel 7.

\Vhile the table 5, vertical shaft 0, and the feed-wheel 7, having the receptacles 10 therein containing the sand, are in the lowered or depressed positions the throttle-valve on the pipe 3l is opened through the lever 33, attached thereto, being lowered by the rod 3-iand bar being connected thereto and to the table 5, and as such table is lowered it will cause water to pass from the source of supply through said pipe 31, valve 32, and be discharged into the charge of sand within the hopper 1% or into the sand as it falls into the trough 1G or other suitable conveyer or receptacle below. Upon the returning or raising of the table 5, vertical shaft 6, and feed-wheel 7 to their raised or higher positions the water will be shut off in the pipe 31 by the lever on the valve 32, by the rod 34 and bar 35 being connected thereto and to the table 5, and thereby only supply a sufficient quantity of water to the sand in the hopper 14: or trough 16 when needed to temper the same, and in the absence of sand in the feed-Wheel 7 the said Wheel, shaft (5, and table 5 will be held in their highest positions by means of the Weight 23, so that in such positions the throttle-valve 32 is closed by the action of the rod 34f. and bar 35 connecting the lever 33 on the valve 32 from the table 5.

It will be evident that the outer ends 8 of the radial wings 8, forming the receptacles 10, beyond the ring 11, can be provided with a circumferential ring, such as is shown at 11 in Fig. 5, and that other means than a weight can be used on the table 5, so that it may be depressed when a sufficient amount of material has been placed within the feedwheel 7 and hopper]. It will also be obvious that the device can be used for the mixing and feeding or tempering of other materials than sand and that. the hopper 1 can be attached to the chute a or table 5, so that such hopper can be lowered and raised, together with the table, if desired, while various other modifications, changes, and uses may be resorted to without departing from the spirit of the invention or sacrificingany of its advantages.

The device is simple and positive in its construction and operation, and by its use a fixed amount of material can be discharged from the feed-wheel duringits revolution and a predetermined quantity of water delivered to such material.

What I claim as my invention, and desire to secure by Letters Patent, is

1. In a device for feeding and tempering foundry-sand, the, the combination of a receptacle or hopper, a table, and rotatable mechanism above said table and under said hopper adapted to be lowered and raised with the table to receive the material from the hopper and discharge the same therefrom.

2. In a device for feeding and tempering foundrysand, 850., the combination of a receptacle or hopper, a table, and a rotatable feed-wheel above said table having receptacles therein passing under said hopper adapt-- ed to be lowered and raised with said table to receive the material from the hopper and discharge the same therefrom.

3. In a device for feeding and tempering foundry-sand, &c., the combination of a receptacle or hopper, a table, a feeding-wheel above said table having receptacles therein passing under said hopper to receive the material therefrom, and means for permitting said feed-wheel and table to be lowered and raised to discharge the material from the feedwheel.

et. in a device for feeding and tempering foundry-sand, &c., the combination of a receptacle or hopper, a table, afeed-wheel above said table having receptacles therein passing under said hopper to receive the material therefrom, and means for rotating said feedwheel and for lowering and raising the same and table to discharge the material .from the feed-wheel.

5. In a device for feeding and tempering foundry-sand, &c., the combination of a receptacle or hopper, a feed-wheel having receptacles therein under said hopper adapted to receive the material from said hopper and be rotated to discharge the material therefrom, and a weighted table under said feedwheel adapted to be lowered and raised for en gaging and disengaging with the rotating mechanism.

6. In a device for feeding and tempering foundry-sand, the, the combination of a receptacle or hopper, a feed-Wheel having receptacles therein under said hopper to receive the material therefrom and adapted to be lowered. and raised, a shaft passing loosely

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