US259033A - merrill - Google Patents

Description

(No Model.) I A.

H. E. MERRILL.

- POTTERY Mom. No. 259,033.Y Patetd June 6 1882.

l 'LDI Iig. 2 ce@ L: -l g 4.*

TFE/usages 1f A 15u/6719er:

@my Zzzlrerrz ffy@ vUNITniD STATES PATENT OFFICE.,

HENRY E. MERRILL, OF AKRON, OHIO, ASSIGNOR TO E. H. MERRILL & CO.,

Y OF SAM-E PLACE.

POTTERY-MOLD.

I SPECIFICATION forming part of 'Letters Patent No. 259,033, dated June 6, 1882.

Application filed March 6, 1882.

` `of Akron, in the county of Summit and State of Ohio, have invented a new and useful Improvement in Pottery-Molds, of which the following is a specification.

My ,invention relates to improvements in molds for forming earthenware' vessels-suchy as lead-corrodingpots-the lower part whereof is of less size than the upper, and with a shoulder between the two sizes. Such vessels are made of potters clay when in a plastic condition by pressing in molds. The molds heretofore employed for that purpose have consisted of a. hollow cylinder having suitable inside shape to form the outside of the vessel, and open at each end, in the bottom of which cylinder was a disk which formed the bottom of the mold, and which was adapted, by means of a rod, to be raised and lift the nished vessel from the mold, and the inside of the vessel was formed by a revolving plunger adapted to be forced downward into the mold and press the clay into shape. This arrangement was found objectionable, because the finished vessel, adhering closely to the outer mold, was not only liable to break or tear, particularly at or near the shoulder, when raised by the disk alone, but the vessel was pressed together and shortened or upset To overcome this objection an independent ring has been placed inside the outer mold on the shoulder therein, and connected by slender rods running through holes in the outer mold to the shaft that supported the disk, so as to be lifted simultaneously with the disk. This wasonly partially successful. The vessel frequently broke, while the ring, being necessarily thin and the rods slender, also frequently broke.

To overcome these difculties is the object of my invention and it consists in the mechanism illustrated in the accompanying drawings, in which- Figure l exhibits, partly in vertical central section, a lead-corroding-pot press embodying my invention; Fig. 2, a plan of the collar F, and Fig. 3 a perspective of forked lever YH.

In the drawings, wherein similar letters of reference refer to like parts, A is the inner re-V (No model.)

volving plunger, and B the outside mold. The latter is of a size to form the pots down to the shoulder 5 but from there it is made large enough to receive an inner mold, C, which ts in the mold B, and forms the shoulder and lower part of the pot. of the mold C, and resting on a shoulder therein, is the disk D, for forming the bottom of the pot, the several parts together constituting an eutire mold. A shaft, E, connected to the disk D, is adapted to move endwise in the line of the axis of the molds C-B, and thereby raise and lower the disk D. A broad collar, F, (see Fig. 2,) encircles the shaft E, and is attached to the mold C by two or more rods, G G. Upon the under side of this collar is pivoted a bent forked latch, H, (see Fig. 8,) the lower end of which rests on a step, I, on the shaft E. If, now, a mass of plastic clay be placed in the mold and the plunger forced downtherein and withdrawn, a complete pot will be formed and remain inside ofthe mold. The bar E is then raised, carryingV the disk D and mold C, and lifting the completed pot out ot the mold B,

Within the lower part' until the projecting end ot' the latch H, encounarran gement here shown, as any equivalent device may be substituted for the collar F and its connected parts, or the latch H may be pivoted farther to the right and engage the step I by gravitation simply.

I claim as my invention- 4 1. In combination with the mold B, the mold O and disk D, all constructed and arranged as shown, and for the purpose specitied.

2. In combination with the mold C and disk D, the collar F, rods G G, latch H, and step I, all constructed and arranged substantially as shown, and for the purpose specied.

3. In combination with the diskD and shaft E,the mold C,With devices, such substantially ranged substantially as shown, and for the 1o as shown, for lifting said mold with said disk purpose herein set forth. a part of the distance, and then releasing it, In testimony that I claim the foregoing I substantially as herein described, and for the have hereunto set my hand this 28th day of purpose specified. February, A. D. 1882.

4. The herein-describedpot-mold,consisting HENRY E. MERRILL. of the plunger A, molds B C, disk D, and shaft Witnesses E, with devices, such substantially as shown, G. P. HUMPHREY, for raising the mold C, all constructed and ar- I DAYTON A. DOYLE.

Images