US691244A - Apparatus for pouring metal into molds. - Google Patents

Description

No. 69|,244. Patented 1an. .|4, |902.

\ .1. v. COLEMAN.

APPARATUS FOR PUURING METAL INTO MOLDS.

v (Application med Jun@ 5, 1900.)

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No. 'QIH,244. Patented lan. I'4, |902.`

.L Y. COLEMAN.

L APPARATUS FOR POURING METAL INTO MOLDS.

(Application led June 5, 1900.) (No Model.) 2 Sheets-Sheet 2.

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handling iiuid substancesother than molten i metal.

UNITED STATES PATENT OFFICE.

JAMES V. COLEMAN, OF SAN FRANCISCO, CALIFORNIA.

APPARATUS FOR POURING METAL INTO MOLDS.

SPECIFICATION forming part of Letters Patent No. 691,244, dated January 14, 1902.

Application led June, 1900. Serial No. 19.176. (No model.)

To all whom. t may conceive;

Be it known that I, JAMES V. COLEMAN, a citizen of the United States, and a resident ot' the City and county of San Francisco and State of California, have invented new and useful Improvements in Apparatus for Pouring Metal into Molds, of which the following is a specification.

This invention relates to a novel means or apparatus for handling crucibles or meltingpots in the operation of pouring the molten metal into molds; and it has for its object mainly to facilitate the work and reduce the labor involved in such operation, whereby a mold can be filled from the Crucible without waste of metal and in much less time than has heretofore been possible in the ordinary Way of handling and pouring from the crucible. The apparatus is also well adapted for To these ends and objects the invention comprises certain novel parts and combination of parts, producing an improved means or apparatus wherein the relative positions of the mold or receiving vessel and the Crucible or Huid-holder are automatically controlled and maintained during the operation of pouring in such manner that the mold is kept directly under the stream being discharged from over the lip or rim of the mold at all times in the swinging or tilting movement of the Crucible, as hereinafter fully described, and set forth in the claims at the end of this specification.

The accompanying drawings, that form part of this specification, are referred to herein by letters. j

Figure lis a side elevation of an apparatus embodying this .invention and showing the mold and the Crucible in position ready for Fig. 2 is a front elevation taken from the left-hand side of Fig. l. Fig. 3 is a front elevation, on an enlarged scale, of the mold-Carriage. Fig. 4. is a vertical transverse section throughthe carriage, Fig. 3. Fig. 5 is a side elevation of the apparatus, on an enlarged scale, showing the relative positions of the mold and the Crucible during the pouring, the dotted lines indicating the positions of the mold and the crucible at the end of the operation. Fig. 6 is a top view of the bed,

the mold, carriage, and the support in which the Crucible is suspended over the mold. Fig. 7 is a vertical transverse section through one of the standards supporting the mold. Fig. 8 is a detail view of the tongs provided for handling and tipping the Crucible. I

The principal parts or features of this apparatus comprise a stationary support for the Crucible, in which that part is suspended on journals to swing in a vertical arc, a traveling carriage for holding the mold under and presenting it to the Crucible, and means connecting the carriage with the Crucible, whereby the movement of the latter on its centers in the operation of pouring the Contents from the same into the mold will feed or advance the mold regularly forward or toward the crucible at such a rate of movement that the Center of the mold will be brought and kept approximately under the lip or lower side of the rim of the Crucible over which the stream of metal is discharged.

The mold-carriage a is mounted on broad wheels or rollers ax and has a iiat top to su pport the mold y in a horizontal position. A pair of standardsb b, having open sockets or bearings c for the journalsffon the Crucible, are fixed on the stationary bed-plate n on opposite sides of the path traveled by the carriage and in line with each other.

Provision is made for varying the distance between the supports and also for increasing or diminishing the height of the j ournal-bearings c to accommodate crucibles of varying sizes. For this purpose the feet s of the standards b are fitted to slide transversely on dovetailed rails p and are fixed at any point thereon by set-screws t. Eachv standard is also formed of two bars or members, one slidable "on the other, the stationary one having the foot s and the sliding membera crotch or open socket C. A set-screw w, taking through a slot on the other member, fastens the two parts together.

The Crucible is handled by a pair of tongs e eX, provided with journals f f on opposite sides of the jaws eX, that grasp the body of Vthe Crucible, and on these journals as centers the Crucible is suspended to swing in a vertical arc. Connection between the Crucible and the mold-carriage is made by a cord or iiexible wire d, attached at one end to the carriage IOC and at the other' end to hooks g g, provided on the tongs, the end of the cord being secured to a triangular loop h, spread at one end to slip readily over the hooks. From this loop the cord d is Carried undera guide-sheave 7a toward the carriage, to which it is attached at dx. The sheave 7c is adjustably held by a clamp-screw 7t, setting through a slot in the bed-plate. A shield interposed between the Crucible and the wire d, protects the latter from the heat. This part :r is suspended from the loop 72, to hang loosely. By this means the motion of the Crucible on its journals when tipped from an upright position toward the Carriage draws the latter forward toward the Crucible, and this movement of progression is adjusted so as to be always proportionate to the changes taking place in the angular position of the Crucible, so that the center of the mold will be kept directly under the descendingsstream.

' A counterweight attached to the Carriage by a cord t', running over a sheave m at the end of the bed, draws the Carriage from under the Crucible after the operation, as the empty Crucible is brought back to au upright position before taking it out of the frame. Pro- Vision is made for regulating the weight.

As thus constructed the apparatus is operated as follows: The carriage standing at the end ofthe bed clear ofthe frame, an empty mold is placed on it as nearly as possible in the Center, and the Crucible, Containing a charge of molten metal, is lifted to place by the tongs and the journals set in the Crotches of the standards, after which the cord connecting the Crucible and the carriage together is attached to the tongs by slipping the loop on the end of the cord over the hooks on the jaws. The operator standing at the head of the bench grasps the handle of the tongs and drawing them toward him tips the Crucible with a gradual movement on its journals, so as to pour the contents evenly and continuously into the mold. By this movement the carriage is also drawn forward automatically and brought under the Crucible through the medium of the cord Connecting the carriage and the Crucible-holder. At the end of this operation the Crucible is turned back to an upright position again, and the Carriage, with the filled mold, is drawn back to place by the Counterweight.

Having thus fully described my invention,

what I Claim as new therein, and desire to secure by Letters Patent, is-

l. In an apparatus for pouring metal into molds,a stationary base,a traveling mold-carrier mounted thereon having rectilinear movement,a stationarysupport provided with open sockets, a Crucible-Carrier removably mounted therein to swing in a vertical arc, said carrier having jaws adapted to seize and Clamp a Crucible, and means detachably connecting the mold-carrier with the said Crucible-Carrier, whereby the movements of the latter in its support produces progressive movement of the mold-carrier toward and under the Crucible.

2. In an apparatus for pouring metal from a Crucible into a mold, the combination of a stationary base, a traveling mold-carrier having rectilinear movement thereon, stationary supports, a tilting Crucible Carrier removably mounted on said supports and consisting of hinged jaws adapted to seize and clamp a Crucible and having journal portions on which it is adapted to swing in the supports, means detachably connecting the mold-carrier to the Crucible-Carrier whereby the movement of the latter in its su pport causes the mold-carrier to travel toward and under the Crucible with a rate of movement proportionate to the tilting movement of the rCrucible as described, and means connect-ed to the mold-carrier for returning the same to position in the reverse movement of the crucible.

3. The combination of the stationary frame having open sockets,a Crucible-carrier having hinged jaws adapted to seize and clamp a Crucible and having journals removably fitted to the sockets, a traveling mold-carrier movable longitudinally under the cruCible-Carrier, a cord connecting the mold-carrier to the crucible-carrier whereby the movements of the latter on its journals produces progressive movements of the mold-carrier under and with relation to the angular movement of the crucible as described, and a counterweight connected to the mold-Carrier adapted to move the same in the opposite direction to the movement produced by the Crucible-Carrier. In testimony that I claim the foregoing I have hereunto set my hand and seal.

JAMES V. COLEMAN. [L s] W itnesses:

M. REGNER, EDWARD E. OsBoRN.

IOO

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