US1427349A - Method of filling molds for founding - Google Patents

Description

vE. 0.-BEARIII E( AND W. F. PIPER.

METHOD 0F FILLING MOLDS FOR FOUNDING.

. l APPLICATION FILED IULYZI, I92I. g.

Patented Aug'. 29 i922.

Inn/ENTER@ (id/@4a. .2

EY: WMM j@ THEIR ATTURNEY uib Ei. D. BEARDSLEYA AND W, F. PiPER. METHOD OF F|LUNG MOLbS FOR FOUNDSNG.

Avvm'cmow min muzi, w21,

ELTEB 0.- BERIDSLEY, 0F C'EGG, AND "WALTER SSEGNORS E0 TEE BELDSLEY To all whom it muy concern.'

Be it known that ive, Emme O. Birliuiisnnv.

and WALTER F. Pire lUnited States, and the county of Cook and Oak Perk,

description.

The invention relates to the filling of molds used in metal founding by projection Tin the practice of the invention of the send. set forth in Letters dated Julyy 155 1919,

erieneed in properly projecting and poele ing which are formed Wi 2.0 and upwardly convergent walls or with undercut spaces, particularly when the ties is provided with e const ieted inlet opening,

because the send proj angle would leiive unfilled spares or loose Z5 send in the pockets sides or `vliioli are otherwise ineeee'sihle.

'The primary object of provide :in improved ro]eeted :it

which excessive spattei'ingg the flask and the tendency of the sund to displace the tiask features hereinafter s tieulnrly defined by claims et the conclusion hereof.

n the drawings: Fig. l of apparatus embodying,l

Fig. l is e detnil ot is :i 'vertical section, Fig. 3,' o'f the the and manipulntingir front elevsition1 perts An zippnrnt'us ter practicing the improved method is exemplified in zi 5G which permits the lnsks to removed 'from the projector livered to and end comprises axles 4 Wheeels 5 A:ind sider to the axles end residents 'of Chicago, in

in the county ot' Cool: and State of Illinois, respectively, luive invented certain new end useful Methods of Filling Molds for Founding, ot

10 which the following is ii send in some portions et {inslrs :ind

n non-varient angle will be pro- 80 )eeted Vto properly peek sind fill undercut Spaces or pockets in the flask.

Another object of the invention is to provide en improved method in will lie lessened.. rlihe invention consists in the several novel apparatus for carrying the flasks.

provided Witlistandards PZ.

METHOD F FLLENG HOLDS FR FUDNG.

Specification of Letters Patent.

n, bothcitizens of the standards T and State of illinois,

improvements in full, clear, and exact bottom., 'is

Patent No. 1,309,835, n diiiiculty has been exin lugs 93 on the iinsl;

the piitternplnte :ind

th decidedly inwardly n send p tor ot the our -iieti'ers zi. mold downn'ziiwillv the invention is to prisiiigi; e easing: iti,

tor U3@ Wiili ivnds of under the convergent method by which send Wlii oli inotor filling molds by ot the sund in ivhieli oted on ii sie for feeding; send iii projector for f'riid pso detailed desem; ion et erence tney be had to on r ln illing ii Sask et iortli :ind more purside elevation the invention. the projector. Fig'. 2 teken on line 2-52 oi? accessible trein tl e the tiuslr 'tor i'neliil Fig. 3 is :i erly fill those portions being; shown in section.

more particularly portable earrings the outer sides et the pn be reedily de sustained by carrying- :imes G rigidly secured in n'iiieli the pro' ily in direi*4 by pro" vnrinnt his machine comprises e i" ii rupi f iiioioc'tor-blnes senddownwardly :it liigrii motor i7 for driving the rotdr; en iirn i pivoted it i9 und end projertor are supported tive relation; :i i,ib to the nirni is pivoteil and v.

und sniieni..

'fii quantity r, pipe-uio 'in the drnwinffs, the send would not. row

under the outer portions ot' the those portions it possible to lill of? flask-carrier is pivotiilly suppe so the desk may be tilted bring the inlet opening et undercut portions of its wells into position Patented 22%, i922..

he upper ends of A ilesk 3 3, lievng; 1li"- to receive l5 end en ouen adapted to rest on the nutterii plete of the tiltiible oerrier end hold the send around the patterns 'to tion ot n mold tor founding. the carrier adapted 'to pass through holes torni one see- Studs 22 on to relativelv vosition I' 'l il Ik desks eno mold them against reliiiiif'e lateral movement This apparatus pnitieuliirlv -v- ,L r3 i-Lfy. ...C n 5 F5 .iv supper. tu puttin-kinder nu ..iisii under type iidsipted to wie lidi* ii.

li e runeliine. rei- .id patent.

th constrietei3 inlet or undercut portions or "porke ed. scent l il).

O he fissi end the Sii so the line of delivery of the sand will be llever. The latter is pivoted to the carrier sccting the inlet opening.

at 27 and is provided with a handle 28 positioned adjacent a handle 29 fixed to the carrier. Lever 26 is normally held in position to hold the block locked to rack 24by a spring 30 which has one of its ends connected to the inner end of the lever, as at 31, and its other end connect/ed to the carrier, as at 32. In order to cushion the flask and carrier in their different positions,y springs 38 and 34 are interposed between the ends of the locking-block 25 and abutments on lever 26, the block being slidable on the lever for that purpose.

In operation, the flaskis placed on the carrier, and the carriage is then moved i`nt-o range of the projector of the moulding machine. The operator will then release the carrier and tilt it so the flask lwill be positioned to permit the downwardly projected wads of sand from the projector to pass through the inlet opening of the flask and directly to either of the spaces between the outer sides of the patterns and the. flasksides, and will then set the locking-lever sothat the carrier and flask will be retained in said position. The projector will then be operated t0 project sand into and to pack it in that portion of the flask which is then in the direct line and path of projection to form the corresponding portion of the mold. Then the carrier and flask will be tilted and set into oppositely inclined position, so as to bring the space betwen the outer side of the other pattern and the other flask-side in the line and path of projection inter' -The projector will be over the flask until this space has been filled and packed with sand. Next, the carrier and flask will be set into horizontal vposition and the projector will be operated to fill all of the unfilled space between and over the patterns and until the ask has been completely filled and uniformly packed with sand the sand being projected adjacent the arrow shown by full lines in Fig. '2. During each step of this Operation, theprojector will be shifted lon` rgitudinallylof` the flask to fill one portion thereof from end to end. The filled flask will then be lifted off the carrier and placed with a mating flask to form a complete mold. 'In all positions, the carrier and flask will be cushioned by springs 33 and 34 and, as a result, there will be no excessive spattering of the sand by the impact of the sand against the surfaces and sand in the flask which results in high speed projection. This cushioning is also advantageous in lessening the tendency of the projected sand to displace the apparatus when it is mountj ed on a portable carriage..

The invention exemplifies a method o filling flasks by high speed projection, in which provision is made for projecting sand directly into undercut spaces or those which are inaccessible by sand projected` in a constant direction; also a method in which the spattering effect of the wa'ds of sand under high speed projection and the tendency of such sand to vibrate or displace the flask p are lessened by cushioning the flask.

The invention is not to be understood as restricted to the precise practice set forth, since it may be modified within the scope of the appended claims, without departing from the spirit and scopeof the invention.

Having thus described the invention, what we claim as new and desire to secure by Letters Patent, is:

1. That improvement in making -molds which consists in projecting sand in a constant direction, and tilting a flask into different positions relatively tothe line of projection and projecting the sand directly intol undercut and otherwise inaccessible spaces in the flask.

2. That improvement in making molds which consists in projecting sand in a constant direction, tilting and iholding the flask in different positions relatively to the line of projection, and moving the projector over the flask in its different positions so that the sand will be projected directly and packed in undercut and otherwise inaccessible spaces. t

3. That .improvement in making; molds which consists in projecting sand inffofa flask and cushioning the flask.

4. That improvement in making molds which cosistsin projecting sand into a flask. shifting the flask to vary the line of delivery of the sand, and cushioning the

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