No. 897,113. PATENTED AUG. 25, 190e. c. H. LAWTON. MOLD.
APPLICATION FILED NOV. 1907.
' 2 SHEETS-SHEET 1.
0. H. LAWTON.
APPLIOATloN FILED Nov. so,
PATENTED AUG. 25, 1908;
2 SHEETS-SHEET 2. I
CHARLES H'. lLAWTON, OF TCRRINGTCN, -CCNNCTCUQ 'ASSIGNCR TO AMERCAN BRASS COMPANY, vOF WATERBURY, CONNECTICUT, A CORPORATION OF CCNNECTXCUT.
Specification ofll'ietters Patent.
Patented Aug. 25, 1903.-
Appiicaeon sies 'simmer so, 1am. serai it. items.
l. To all. whom it may Concern:
Be. it known that l, CHARLES H. LAWTON, a citizen of' the United States, residing at Torrington, county of Litchfield, State of Connecticut, have invented certain new and useful Improvements in Molds, of'ivhich the following is a full, clear, and exact description.`
This invention relates to improvements in molds, and'particularly` to a inold for casting ingots and the like. The' object of the invention is to provide a simple and effective construction whereby Yingots may be produced in a two-part cast incid., i
Heretoforel in the casting ofy ingots and other articles in molds of this character, aA 'fin is usually produced at the edge of the article.
By niy invention this is avoided. Further-y more', the construction issuch as to facilitate easy handling.
ln the drawings, Figure i tion of a complete niold; Fig. 2 is a'ircnt elevation-of the saine Aliig. '3 is front elevation.
of one part removed; Fig. l is a corresponding view of the opposite part removed; Fig. 5. 4is a section through both parts.
` .The incid is formed essentially of two separate parts l and Eitherpart may 'ce des- 1 nated the cover and the other `art the back, but in this description l will refer to the part 'i as the hack, and the part 2 as the cover. These parts 1 and 2 when assembled,
or'put together, forni between them a space into Which the molten inetal is poured, said space giving to the cast article the desired .outline The cover 2 is provided With side l iiznges 2a, 2a, while the base l is provided with recesses to receive the edges of said- `langes when the two parts of the mold are asselnloled ready to receive the inolten nietal. As will be seen, these iianges make afsnug en gagenient with edges lb lb of the bach,over#y lapping the saine in such a inanner as toprevent the molten inet-al from partially escapin at the sides so as al) e side fins.
in the preferred forni of my recess into which the flanges 2a "2a project have inclined surfaces 1 u l a, and the edges 2b 2b ofthe iianges are suitably beveled so that when the t-Wo parts are brought* together, these inclines coactito force'the2 flanoes 2a 2a tightly against the shoulders l-bflfb, el
is a eleva to form the olojectioninvention, thev osing inv l so tightly .as to r'ofvide, in effect, an integral mold and there yf-.preventing the formation of a rough fin. While thesefinclines are preferable, in the 1oroadestsense they are not essentialA to the invention, since the iitof the side flanges of the part 2 with thev shoulders 1b 1b niight he such as to avoid the necessity of the saine.` Y,
As shown, the part i is provided with a shoulder 3, which constitutes a closure for the lower end of the mold-when the p arts are assembled and set up. tThis also, to a certain extent, serves as a guide to aline and center the-two members i and as they are being closed. ln performing the function of' a guide thedanger of bruising the closing-in edges is avoided.
Lil-4 are extensions or feet at the lower end of the part l and to these extensions it is referable to hinge the part 2, vas by the Knuckles 5 5 and a pivot pin The eX- tensions Lproject below the knuckles 5-5 with the result that the operator is permitted te lia-nele the mold veryquicily 'te open or close trie same. The position of the rnold in use is substantially upright, and when the mold is putin position it leans against a rack, such as l0, the lower end being supported on the floor. Any suitable form of clamp may he applied. yto vthe mold to secure the parts i and 2 together, forfeXaniple, a hand 7 and a 'Wedge 8. When the moldvis set up ready for use this vhand engages the tivo parts, as shown, and the edge is driven into place, thereby securely clamping the tivo members together. i
' in the forni shown, 9-9' are reinforcing ribson the rear of the back, which may he provided to. add strength. The side iianges on the cover 2 perform the function of reinforcing 'ribs to strengthen the saine, thereby making it unnecessary to. rile thehack of the cover, although, of course, such-ribbing may he provid-ed if desired. .g ln this form of 'mold l vain-enabled to cast the two lmembers i and 2, and the same mayv be produced very economically vsince' it is y only necessary to machine ythe closing-in edges. 'For example,
in the preferred forni the inclines aforesaid would he smoothed up or machined so as to operate freely.- lt is also desirable to Inachine or smooth up the edges of the nanges where they engage the shoulders il 1b, sox asis customary to clean and rease the interior which the hotl surfaces' of the mold wit metal engages. By my construction this .cleaning and greasing.. process is-.simplied and made easy, since' ready access may be had to the said parts at any time'. Furthermore, byl having these'parts connected byv the pivoted joint, acomplete set islalw'ay's found, thereby avoiding the. necessity' of. selecting two separate' pieces that are'proirlierly adapted to'one another. e
As soon as t metal has sufficiently cooled toharden; the clamp may be released and the part 2 swung 'open (see dotted'lines Fig.. 1) -thereby releasing the ingots, which may be quickly.,v
withdrawn andthe mold prepared for an-v other ,operation By hinging the arts, the
. danger of breaking 1s also avoide and the clamp guaranteeing the properclosing in ofA abutting surfaces at the outer side of each flange and groove being correspondingl bev- Bled and arranged to force the inner si e wally operator can very readilyT 'handle the same in. opening, `since oneend is held by the hinge. Another advantage of the hinged joint in connection with the interlocking. parts is,
that it performs, in a way, the function of a the lower end of' themold at all times. By this hinged arrangement too it is possible to dispense with more than one clamp','althoughv in practice as many may-be'employed. as djesired. Heretofore the constructions have been such as to require the presence of a plurality ofclam s;
By avoiding t e formation of the af very substantial saving is effected not only labor, but also in waste or scrap, since for the use of ingots,1";or example in rollin mills, it is'necessarj to first trim off and iscard these obj ectionable lfins before the ingotisin pro er shape for the mill.
at I-clai1n is', l. In a mold, thecombination ofa cover having depending side'flanges, a back having grooves to receive said flanges, one ofthef abutting surfaces between each flange and groove at the'outer side of the flange being 1 -beveled and arranged to force the. inner side wall of said flange laterally-into intimate contact-withthe inner side wall of 'its groove, and means to clamp the arts together.
2. In a mold, thecom ination of a cover having' depending sideflanges, a back having grooves to receive vsaid flanges, one of the abutting surfaces between each flange and roove at' theoutei'. side'of the flange being eveled and arranged to force the inner side wall of said ilangelaterally into intimate con. tact with the inner side wall ofits groove,
means to" c1amp the parts together, -anda hinge and closure at one end ofsaid' parts.
' 3. In a mold, the combination of a cover having depending side flanges," a back having grooves to receive saidl flanges, both of the ofthe flange laterally into intimate contact 65 .with the inner' side wall of each groove.
4. In arnold, the combination of a cover having depending sideflanges, a back having grooves to receive said Hanges, one ofl the.
abutting surfaces :between each' flange Tand 70 groove at the outer side of said flangebeing beveled andA arranged to force the inner side 5. A two-part hinged mold, sides onl one part engaging in recesses on the other part, 80
an end clos'ureon the latter part, and abinge member on said part extending belowi the hinge mein-ber on the other art.,
' 6. A twbparthinged mo d, 'sides on one 'f part engaging m recesses' inthe other part, a3-
and an end. closure v o/n the latter part, the opposite end being open at all times, the said.'
sides having. beveled' surfaces coacting correspondmg beveled surfaces on said ref.
cesses when`- the parts are broughttogether;`9T` 7 In a mold, .acoverjdepending flanges ateach side thereof, a back having corre sponding recesses to receive the flanges, fa'f 4hinge at o ne vendveonnecting the'cov'er and the ack, and a closure'at the same end, sald 95 f flanges beveled on the outer side coactingwith corresponding' beveled surfaces on said recesses when the parts'arebrought together'- .to' force said flanges laterally 'into f intimate l side engagement with that part ofthe mold 1 00 between said flanges. A 8. In a' mold, a back, a cover adapted' thereto, a side flange on one of said parts adapted to engage the op osite part, andmeans coacting withsaid cover and -back are brought together to force said flange laterally into intimate closing conv tact with said opposite' part. 9. In a mold, aback, a `cover adapted thereto, two side flan es on one of said parts li' adaptedtopengage t e opposite par-t, and -means coacting with said flanges when said coverand back are brought together vto force saidflanges laterally into intimate' closing. contact with said opposite'part.
thereto, means to clamp said parts together, side flanges carried by one of saidparts and adapted to engage the opposite part, and
'means coacting with said flanges when the 12o cover and back are clamped together to force said flanges laterally into intimate; closing L contact vwith saidoppositep'art.
onlie.' n. Law'roisi. Witnesses:v 'ARTHUR H; QUIGLEY,
E;'.H.;Y ATESM i I l ange when said 41:05
. 11s v 4 10.In a` mold, a back, a' cover hinged