US695156A - Apparatus for delivering glass. - Google Patents

Description

PatentedMar. Il, |902.

W. D. KEYES. APPARATUS FR DELIVERING GLASS.

(Application filed Aug. 27. 1900) .Ill |||I IIIIII..L

(No Model.)

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.VASHINGTON-D. KEYES, OF KITTANNNG, PENNSYLVANIA.

APPARATUS FOR DELIVERING GLASS.

SPECIFICATION forming part of Letters Fatent No. 695,156, dated March 11, 1902. Application tiled August 27, 1900. Serial No. 28,138. (No model.)

.T0 @ZZ whom t 11i/Cty concern:

Be it known that 1, WASHINGTON D. KEYES, a citizen of the United States, residing at Kittanning, in the county of Armstrong and State of Pennsylvania, have invented new and useful Improvements 'in Apparatus for Delivering Glass, of which the following is a specification.

This invention relates to the removal of molten glass from a tank or other furnace and its delivery for working, as to a casting-table.

The object of the invention is to provide apparatus for effecting the direct transfer and delivery of glass from the reducing and relining apparatus to the casting-table, thereby doing away with the portable lining -pots universally used in the manufacture of plateglass. In the preparation of glass as now practiced the batch is melted and relined inA one and the same pot, or it is reduced to molten state in a melting-tank and drawn off into pots and refined by placing the pots in a iining oven or furnace. When by either process the glass is in proper condition, it is poured from the pots onto the casting-table. These old methods of manufacture are indirect and necessitate the employment of fragile and expensive apparatus. However, as before stated, pots are universally used, as prior to my invention no adequate mechanism has been devised for removing and delivering the glass which did not so agitate it as to render it unfit for working. My improved apparatus obviates these difficulties and at thesame time increases the production byeffecting a direct transfer or delivery of the glass without undue agitation.

In the accompanying drawings is illustrated apparatus constructed in accordance with my invention.

Figure 1 is a side elevation of the same, partly in section, the position of the ladle just before lling being shown in solid lines and the position thereof over the casting-table before discharging shown in dotted lines. Fig. 2 is a plan View of Fig. 1. Figs. 3 and 4 illustrate the movement of the ladle within the refining end of the tank.

Referring to the drawings, 2 is the meltingtank, 3 the refining end or compartment thereof, and 4. the floats.

5 represents elevated tracks at the front and outside of compartment 3 and extending transversely-thereof, and G is .a crane movable on the tracks. Mounted on the crane is trolley 7, which carries the two hydraulic or other cylinders 8, to which actuating iiuid may be supplied in any suitable manner.

9 represents piston-rods depending from the cylinders. At the lower ends of the rods are bearing-collars 10, in which is rotatably mounted the horizontally-elongated bar 1l, provided at one end with handles 12 and at the opposite end carrying ladle 13. The ladle is elongated and semicylindrical in shape, with its end walls secured on bar 1l, which extends therethrough, and its body portion curved concentrically to said bar. The ladle Vis formed of thin metal and its longitudinal edges form cutting edges, the advancing edge entering the molten glass when the ladle is turned in the operating of filling without disturbing or displacing the glass While turning therein,"owing to its concentric shape. The stroke of the two piston-rods is identical and in extent corresponds to the radius of the ladle. The ladle is introduced through opening 3 into compartment 3 in inverted position, with bar 11 in lowermost position and just clearing the bottom of opening 3', all as shown in full lines in Figs. 1 and 3. With the ladle thus positioned over float or skimmer 14. bar 11 iswslowly rotated, and the ladle is thus turned concentrically into the refined glass, as shown in dotted lines in Fig.. 3, and the movement is continued until the ladle reaches an upright position, (shown in full lines in Fig. 4,) when it is filled. Pistons 9 are then moved to the upward limit of their movement or stroke, lifting the bar 11 and ladle to position shown'in dotted lines in Fig. 4. The ladle is then withdrawn, the trolley moving outward over the crane. The latter is then moved, carrying the ladle laterally over the casting-table 15, when the ladle is again lowered, the piston-rods moving' downward the limit of their movement, thus positioning the ladle as close as Vis practicable to the table, and thereby minimizing the drop of glass thereon when discharged by a gradual rotation of bar 11 and the ladle. The inverted ladle is then raised and righted, and the crane is moved backward to original or charging position. The trolleyis then moved IOC) to position the ladle over Water-bath l6,when the ladle is again lowered and immersed in the bath by being given a complete rotation, thus thoroughly cleansing it of any glass that may have adhered thereto from the previous operation and preparing it for the next dipping operation. The ladle is then moved into refining-compartment 3, being in lowered and inverted position ready for the next filling or charging operation. y

The ladle is manipulated by one, two, or more men at the handle end of bar ll. I do not restrict myself to the means here shown for effecting the longitudinal and lateral movement of the ladle-carrying bar, as the same may be accomplished in a variety of ways, nor do I restrict myself to the relative arrangement of the refining-chamber, bath, and casting-table, as the same may be varied asv circumstances may require. The glass should be in condition for casting before being removed from the refining-compartment. If, however, its temperature is too high, it may remain in the ladle until sufficiently cool.

The circular or concentric movement of the ladle in the refined glass causes the same to iill with no perceptible agitation, and when the filled ladle is lifted the glass remaining in the refining-chamber equalizes or assumes a uniform level without injurious results. The operation of filling the ladle is, in effect,

a concentric cutting or shearing of the glass,

the ladle-axis constantly in a horizontal plane, mechanism for raising and lowering the horizontally-maintained ladle and means for limiting the throw of said mechanism to a distance equal to the radius of the ladle, substantially as shown and described.

2. Improved glass delivering apparatus, comprising a refining chamber having an opening, a ladle-support, a ladle on the support adapted to rotate on a horizontal axis, a ladle-bath in line with the chamber-opening, means for maintaining the ladle-support constantly in horizontal position, means for moving vertically the horizontally maintained ladle-support, and mechanism for moving the support and ladle to position over the bath and from thence to discharging position, substantially as shown and described.

3. In improved glass-delivering mechanism, the combination with a refining-chamber provided with an opening, and a ladlebath exterior to the refining-chamber, of a ladle, a rotatable ladle-support to which the ladle is iixed, means for maintaining the ladle-support constantly in horizontal position, means for vertically moving said support, and mechanism for transporting the ladle and its support from the refining-chamber to the bath, and from the latter to position for discharging, substantially as shownl and described.

4. In improved glass-delivering apparatus, the combination with the ladle-support and the ladle on the support, of two-power-cylinders having their piston-rods secured to the support and sustaining the same in horizontal position, the piston-rods serving to move the support and ladle vertically, substan tially as shown and described.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

wAsI-nNeroN D. KEYES.

Witnesses:

ALEX. S. MABON, J. M. NEsBIT.

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