US760772A - Apparatus for supplying granular material. - Google Patents

Description

No. 760,772. 1 PATENTED MAY 24, 1904.

A; L. &Y 0. ANDERSON. APPARATUS FOR SUPPLYIN-G GRANULAR MATERIAL.

' APPLICATION FILED MAY 17, 1902. v KO MODBL.- 5 SHEETS-8113211.,

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No. 760,772. :PATENTED MAY-24,1904.

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APPARATUS FOR SUPPLYING GRANULAR MATERIAL; APPLICATION FILED MAY 17, 1902,

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No. 760,772. PATBNTED MAY 24,1904.

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I P UNITED STATES Patented ma 24, 1904.

PATENT OFFICE.

ANDREW L."ANDERSON AND OSCAR ANDERSON," OF cHmAco, 1LL1No1s.

APPARATU'S'FOR-SUPPLYING GRANiJLAR MATERIAL.

SPECIFICATION forming artof Letters Patent 110.760,?72, dated May 24, 1904.

Application filed May 17,1902. Serial No. 107,739. Tamas I I To all whom it may concern;

Be it known that we, ANDREW L. ANDER- soNv and OSCAR ANDERSON, of Chicago, in the county of Cook and State of Illinois, have invented certain. new and useful Improvements in Apparatus for Supplying Granular I Material; and We do hereby declare that the followingis a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon,which forma part of this specification. I n =Th1s 1nvent1on relates to improvements in apparatus for supplying granular material,

.erative connections between said such as sand, to molding-machines or other devices; and the invention consists in the mat- ;te'rs hereinafter set forth, and more particularly pointed'out in theappended claims.

An apparatus embracing our'in'vention embraces generally a receptacle, divided by a ing a movable delivery-spout and a discharge door or valve between the measuringwchamher and the delivery-spout, together with oplast mentioned valve and spout.

In the drawings, Figure-1 is tion of a sand-feeding device embracing our invention, showing the same in proper position with respect to a sand-molding machine of that type shown and claimed in our prior application for United States Letters Patent,

Serial; No. 75,667, filed September 16, 1901.- Fig. 2 is a plan section of the same, taken on line 2 2 of Fig. 1. Fig. 3 is aplan section 7 taken on line 3 3 of Fig. 1. Fig. 4' isa rear elevation of the same. Fig-5 is a vertical longitudinal section thereof, taken on line 5 5 of Fig. 4:- Fig. 6 is another vertical longitu dinal section taken online 6 6 of Fig. 5.

As shown in said drawings, the sand-sup:

, plying mechanism embodying our invention embraces generally-a vertically-elongated ,re-' ceptacle extending above the flask A of the molding-machine at one side thereof andsnpported from the machine, as shown in Figs. 1

and 2, or otherwise. The said receptacle is divided by a horizontally-sliding valveor gate 5 B into a lower compartment ormeaSuringceptacle.

aside elevanuts c, ,whichl e'ngage bracket -.bearings::e

chamber C and an upper or receivingcompartment -D,provide'dwith a flaring hopper D, through which sand is delivered to there- Q G designates a discharge-spout which is adapted to be moved into and out of communication'with the lower end of the receptacle, whereby-the lower end of the spout maybe moved over the flask to deposit sand thereon and be thereafter moved laterally out of the way of the moving parts of the molding-ma chine. The lower compartment or measuring- 1 chamber is adjustable in size, so that a measured quantity or charge of sandmay 'be delivl ered to the" flask according :to the size of thesame. Said lower compartment consists ofa port, an .intermediate part1C and an upper part or section C. ,upper-section is, attached-a telescopicseC- To the lower edgeiof the tion G, which; is adapted to. slide vertically with respect to the section G whereby :the

capacity 'of the measuring-ch amber may be varied. Y Provision is madenfor vertically adjusting the upper sectionaG? relatively to the section (la-and therebyeffecting such adjustment ofthe measuring-chamber, .-con-' sisting of screws (1" provided With adjustingbolted to the part orsection (1 Said-bolts uring-chamber: Rotation of the nuts-0 therefore acts to give 'longitudinalmovement to the bolts, and thereby shift the telescopic secare connected at their upper ends; withipr'djecting parts 0 011 the section 0 of themeasflanges d and 0 which are of rectangular form,

as seen in cross section' in Fig. 2-,'and which-are formed to provide between them a horlzontal slot to receive the horizontally-movable gate 7 uring chambers. A guide-frameE extends outwardly from the horizontal meeting flanges or valve B between the receiving and meas- (land 0 to support the gate when w retracted or moved outwardly fromthe receptacle.

'E E designate rack-bars, which are attached to the gateyby a cross-bar e, as shown I in Fig.- 4, and slide inguides or bearing-boxes 10o Fig. 5.

E Fig. 5, attached to the guide-frame E on opposite sides thereof.

F, Fig. 6, designates a horizontal shaft,

which is mounted in bearings f f, connected with the upper part C of the measuring-chamber and which extends through said measuring-chamber. Said shaft is provided on one end with a sprocket-wheel F, which is adapted to be engaged by a sprocket-chain f, through the medium of which the shaft is rotated. Said shaft is also provided near its, ends with gear-wheels F F, which mesh with the racks E in a manner to retract and close the gate or valve B when power is applied to rotate the shaft F.

Attached to the lower flanges 0 of the section C are two parallel horizontal grooved bars H, arranged to form, guides for a spoutearrier frame, by which the sand-spoutG is supported and through which the moving parts of a door or gate for the dischargeopening at the lower end of the receptacle are actuated. The said carrier-frame is suspended from the bars H by means of wheels G and brackets g, on which the wheels are mounted and which are fastened to the car rier-frame. To the said carrier-frame are attached horizontal rack-bars H through which movementv is given thereto. Bolted to the guide-bars and also to the section Q of the hopper are two bearing-brackets it, in which is rotatively mounted a shaft H to. the ends of whichare aflixed gear-pinions H*, which latter engage and operate the rack-bars H as clearly shown in Fig. 6. To the end of said shaft H is affixed a sprocket-wheel H about which a sprocket-belt is adapted to be trained for rotating said shaft, and thereby operating the rack for giving movement to the carrier-frame. ,To the top of said sandspout is attached aisquare flanged bar G which isbolted to the spout-carrier frame, which latter consists of side bars G and crossbars G, bolted to the same, said side bars G being parallel with the guide-bars H and arranged below and in contact with the same. Resting on the cross-bar s G and attached thereto is a valve-plate H, arranged to slide at its edges in guide-grooves formed in the upper surfaces of the guide-bars H.- Said valve-plate is provided with an opening it, located directly over the open upper end of the spout. One end of the valve-plate H extends beyond the cross-bar, G? of the carrier-frame about half-way across the lower open end of the section C when the spout is retracted or in, the position shown in Fig, 5. Above the .door H and arranged to slide at its side edges on the guide -bars H is a second valve-plateH. I The imperforate advance end of this valve-gate is made long enough to extend from the advance end of the plate H across the delivery-opening of the receptacle when the doors are retracted, as shown in In said plate H is formed an open- -beneath the receptacle.

ing 7L2, which is longer than the opening 71, in the lower valve-plate. At the opposite ends of the valve-plate H are depending stops [L3 it, as shown in Fig. 5, against which the plate H acts to operate the plate H. Said upper valve-plate is actuated solely by movement of the lower valve-plate and spout. Movement of the spout from the position shown in Fig. 5 toward the molding-machine serves to bring the end of the lower valveplate against-the stop It on'the upper plate, so as to carry said upper plate forwardly and open the exit-opening of the receptacle gradually to its full extent as the spout is moved By this operation the sand is released and falls into the spout. As the spout is retracted from the moldingmachine the outer end of the lower valveplate strikes the stop it on the rear end of the upper valve-plate, thereby forcing said upper valve-plate back with the lower one and bringing the valve-plates into theposition shown inFig. 5, which closes the lower end of the receptacle.

The separatelymovable valve-plate H is employed in order to enable the delivery device as a whole to be located close to the molding-machine without interference with the Working parts thereof, it being obvious that the device would need to be located at a considerably greater distance from the molding-machine to give room for the movement of the valve-plate. if a single .valve-plate of the full width of the discharge-opening of the receptacle were used.

With the sand-delivery devices arranged and connected as described the operation of said sand-delivery devices is as follows: Assuming that the measuring-chamber of the receptacle has been charged or filled, the

sprocket-wheel H' is rotated through any suitable mechanism to impart rotation to the shaft H",and the gear-wheels H on said shaft act through the rack-bars H to move the sandspout G forwardly beneath the section 0 of the receptacle until the spout is brought under the exit-opening of the same. During the movement of said spent the valve-plate H, which is attached to and moves with they spout, strikes the projection it on the upper valve-plate and fully opens the valve. After the opening it of the valve-plate H has reached'a point beneath the opening in the lower end of the receptacle the sand gradually passes through said spout, and the sand is distributed evenly in the flask through the movement of the discharge end of the spout over the same. After the sand-spout has been moved to the limit of its travel and the charge of sand from the measuring-chamber has been deposited in the flask the movement of the spout is reversed. The valve composed of the plates H H is closed during the retractive movement of the spout, after which the measuring-chamber is in readiness for another charge of sand. It will of course be understood that during the forward movement of the spout andwhen the valve at the lower end of the section C is opened the valve or gate B is closed, so as to prevent more than the measuredcharge of sand passing through the spout into the flask, and, furthermore, that the upper end of the hopper is in communication with a source supplying sand which will supply sand tothe receiving-chamber of the hopper as rapidlyras it is used. As soon as the chute has been retracted after filling a flask the valve or gate B is opened to recharge the measuring-chamber. Saiddoor B is opened and closed by rotation of the shaft F and gear-' wheels F and rack E associated therewith,

said parts being actuated either automatically or-by hand. It will 'be observed that the ca pacity of the measuring-chamber and, therefore the charge delivered through the sandspout to the flask, may be varied by the adjusting-screw (J so as to provide the required amount of sand in each operation.

It is obvious that changes may be made in the details of the apparatus shown without departing from the spirit of our invention,

and we do not wish to be limited to such details except as hereinafter made the subject of specific claims. Moreover, the mechanism may be applied for intermittingly delivering measured charges'of sand or other granular materials to other machines or apparatus, and the illustration and description of the apparatus or device in connection with a moldingmachine are for the purpose of showing one chamber, and a valve mechanism controlled by. the movement of said spout, constructed 4 measuring-chamber, means for varying'the' capacity of the measuring-chamber, a delivery-spout, means for movmg the spout to brlng 1ts recelving end into and out of position beneath the discharge-opening of the,

measuring-chamber, and a valve mechanism controlled by the movement of said spout constructed to open said discharge-opening when said spout is beneath the same, and to close the valve when the spout is moved away from said discharge-opening.

3. An apparatus for dehvermg granular ceiving and measuring chambers, a guideframe in which said valve slides, a rack connected with said valve, a rotative gear-wheel engaging said rack, a delivery-spout, and a valve mechanism between the measurmgchamber and the delivery-spout controlled .by

the movement of said spout, the valve being adapted to be opened when the spout is beneath the discharge-opening of said measuring-chamber and to be closed when the spout is out of line with the said discharge-opening.

4. An apparatus for delivering granular material, comprising a receiving-chamber, a measuring-chamber, a Valve between the receiving and measuring chambers, a horizontally-movable, downwardly-inclined deliveryspout, horizontal guides for the spout at either side of the discharge-openingof the measuringchamber, and a horizontal valve-plate which is attached to and moves with the spout and is adapted to rest'beneath the discharge-opening of the measuring-chamber when the spout is shifted away from said opening and to be moved away from said opening when the spout is brought beneath the same.

5. An apparatus for delivering granular material, comprising a receiving-chamber, a measuring-chamber, avalve between the receiving and measuring chambers, a horizon tally-movable, downwardly-inclined deliveryspout, horizontal guides at either sideofthe discharge-opening of the receptacle, supporting-wheels mounted on the spout and resting in said guides, for supportingsaid spout from the said guides, and a horizontal valve-plate which is attached to and moves with the spout and which slides on said horizontal guides.

6. A mechanism for delivering granular material comprising a receptacle, a deliveryspout, horizontal guides on the receptacle on which said spout is supported, means for moving said spout into and out of position beneath the discharge-opening of the receptacle, and a valve omprising an apertured valve-plate which? has sliding engagement with said guides, an apertured valve-plate which is movable with the spout, and stops on said first-mentioned plate, whereby motion is communicated thereto from the plate which moves with the spout in such manner that when the spout is moved beneath the said dischargeopening the valve is opened, and when moved from beneath the same, the valve is closed.

In testimony that we claim the foregoing as our invention we afiix our signatures, in presence of two witnesses, this 13th day of May, A. D. 1902.

. ANDREW L. ANDERSON.

4 OSCAR ANDERSON.

Witnesses:

TAYLOR E. BROWN, GERTRUDE BRYCE.

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