US1074006A - Process of making molds. - Google Patents

Description

"A, c. MorrT, JB. y PROCESS' OP MAKING MOLDS. APBLIOATION FILED JUNB'zp', 1912.

` a' C y///////////////////////////////// Patented sept. 23, 1913 A. O. MOTT, Jn. PROCESS 0F IAKING HOLDS. Annunci rmsn :un aq. ma.

1,074,006. Patented sept` 23,1913.

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UNITED saines BRAM o. Mo'r'r, am., or PHILABNLP'HI'A, PENNsYLvANla, .assieme To nenni/icon srovs COMPANY, or PHILADELPHIA. PENNSYLVANIA, A coaroae'riou or PENN SYLVANIA.

To allwhlomz't may concern:

Be it known thatl I, ABRAM C. Mora', Jr., a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in' the v Process of Making Molds, of which the following is a" the handling of the flasks in making the mold. 1.. In the' accompanying drawings :"-Flgures l to l0, inclusive, illustratev the steps ini the process of making a'mold; the viewsy being'in diagrammatic section.

Inthe present instance, I have illustrated my' improved processl in connection with what is known as a turn-over table, formingl 4part of a molding machine, but-it Will be understood that the invention can be carried out Without the use of a molding machine, if desired.

In Fig. l of the drawings l have shown a bearing A forming part of the frame of a molding'macnine to which the. turn-over frame B pivoted. D is the table ont-o which the flasks are turned. C isa section of a flask, which is secured to the frame B in any suitable manner. Mounted in this flask is the match board 0, having a pattern This pattern, 1n the present instance. 1s

c. deep and extends to a considerable depth in trated in Fig. yl, the sand c rammed in the flask E and in the depression in the pat-- tern a, as in Fig. l. rl`hen the 'bottom board F is placed on the flask, as illustrated in F ig. 2, and the fasteners which are piv-- otally mounted on the Hask C are passed over the bottom board, as shown, so as to secure the bottom board to the tlask. The next step in the-process is to turn the frame B on its pivot so as to deposit the flask on the table D; the bottom board F resting on the table, as shown in F ig. 8. The section C of the flask is then rammed, as illustrated in Fig. 3, and the sprue z' is inserted at this p l the tlaskC, the vmoli PROCESS or Maxine Moms.

Specification of Letters Patent. .A Pajgntd Sapri-23, 1913, Application filed J une 20, l14912. :Serial No.704-;607. v

"ing'ppening 1 o separate the sand previous-to the rammii'igr-,of Ithe sand inthe tlask @,the mold supportslc" 'are Vprojected into the ila'sl, as shownin Fig. 3, so" that Whenthe' sand is `rammed therein'ity Willberetained .in the flask;A Thehooks F) are then removed'and the table' D lower' il.. 'As the tableislOW- ered, the `match hoard@ and bottom section E of the flask are drawn awayfrom the top section C, as shown in Fig. fl, and,

stepyin `the process so assto form the poursired. Asilinstratedi.. 1 ig. 5, both the upper vand lower sections ofthe mold are now free of the pattern. -The f tme B is then turned back to its original position, F ig. 5, with the flask C and the iippe'r half of the mold therein, exposing the vi'natch board and the pattern which .aile .llien readily removed from the lower pertltn of the mold; leaving the other vhaltloilll'tlie mold inthe position illustrated inlig. 6. The frame B is then turned over again so as to bring the upper half of the mplld directly in line With the lowerhalf on th1 table D. The table is then raised sov as' ring thelo'wer half of the ino-ld in contactivith the upper half, Fig. 7. Then the mold supports o are Withdrawn and the table again lowered, and, as there lis nothing to support thesand within lis Withdrawn from `the can* be reml l parts fot thev sand resting on 'the bottom board F.

mold' together intact and .At this moved from the table D.

i preferably make the iasks tapered, as shown, thus'makirmr the mold with tapered exterior Walls, and I mount a 'trame (l on the mold before pouring. This trame has hooks y pivoted thereto, which extend under the bottom. board and hold the tranne (i in place on the mold, after which the metal can he poured into the mold. This frame not only '.'f'orms the support for the sides oithe mold` but also holds the mold point, the board with the mold canv be reagainst movenwnt of the sand lne to puurupon the continued downward movement of ind the iE-rame turned,` i 7, aftervhichfthe' flask" f 9, leaving the. `two ngpsothatl'tp Weights, :usually employed, on top of the match board; ramming the I can vbe dispensed with. v -4 last mentioned mold with sand; then mount- -25 I perforate the sides of `the lframe, as ing the bottom board thereon; securin the shown, vnotonly tolighten the frame, 4but bottom board to the two f sections lo the also to lpermit the gases-to escape which may flask` with the match board between the pass through the sand 'ofthe mold. l flasks; turning over the flasks with the bot- -Thus it Willbe seen, yby Vmy improved tom board; ramming the first flask with 30 I process, that I- y'can quickly.: and accurately sand While the flasks are jstll secured toform sand moldsand can luse the flasks over gether; releasingand separating' the .ilasks and over again, prior tothe pouring opera- 'with the sections of themolds from the tion. It is also, to be noted that I provide pattern; removing the pattern; replacing for the retaining 0f the sand in the *moldthe flasks Iwith the molds therein; detachin 36 during the pouring operation andv this frame the first mentioned flask from its moldyan 'G can be placed'on the 1mold prior to said then detaching the second flask from its operation and then placed on another mold; mold, leaving the tv vo parts of-t-he mold in dispensin with a' large number of flasks positonffor pouring.

and Weig ts. In testimony whereof, I have signedmy 40 "I claim naine to this specification, in the presence The pro'ess 'herein described of making of-two` subscribln witnesses.

'sand molds, said process consisting in first f BRAM C. MOTT, Jn.

inverting. one section ofa mold;4 acing a Witnesses: y

match board with a attern thereon in the Jos. H. KLEIN,

' mold; mounting anot er section of the mold' 4 lvWVM. BARR.

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