US2448827A

US2448827A - Sectional match plate

Info

Publication number: US2448827A
Application number: US671006A
Authority: US
Inventors: Jr Emil Edward Reder
Original assignee: Individual
Current assignee: Individual
Priority date: 1946-05-20
Filing date: 1946-05-20
Publication date: 1948-09-07
Anticipated expiration: 1965-09-07

Description

P 1948- E. E. REDER, JR

SECTIONAL MATCH PLATE Fil ed May 20, .1945

ljiiz Patented Sept. 7, 1948 gamma meant? fEinilfEdward new, 1a, Chicago,-

v I mitten tam.resumesi ,1

plate, comprising a main frame, supporting removable pattern Sections, a 'series ofjiclamping' arrangements which are practical from afound i'ngstandpoint', and fast in operation, and ar: ranged in such manner as to preventfthe loss of the Iclamping members when theiniaten plate is' in" operation. and wherithesectionsj are being removed" or replaced; second, to utilize the edge of the drag member" of the'fiaskastolflend its weight and'supporttothe pattern sections of the main frame; third; to provide a frame to support the 'pattem section's therein, and fwhich willfpermitjthe shrinkage of the pattern'section and still remain firm in the section frarnafland fourth, to provide apr'actical sectional matchplate from a founding stand-point, having removable sections.

which will remain in. afirrn, rigid position when clamped in their-respective positions in relation to the main frame.

One form of the invention is illustrated in the accompanying drawing in which: 1

Fig. 1 is a plan view of the entire match plate Fig. 1A is asection takenonline IA of Fig. 1; Fig. 1B is a section taken on line IB of Fig. 1; I Fig. 21s a plan view of a pattern sectionframe; Fig. 2A is a side view of the same name- Fig.3 is 'a' plan view of a' 'clam'ping strip T Fig. 3A is a side view of thesame strip;j:: Fig. 4 is a side view of the match plate "shown inF aL- The main frame 1, the removable attern ec" contactbetween the recessed openings of frame :I,

and the saidsection. frames 2-i-2"--2--2, to permit easy assembly of thefsai'dlsection, frames 2-:

2 +2--f2, when I installed in. the recessed openings in frame I,,iwithoutf having an excessive amount of clearance'between the said section: frames 2-2;2 2, and the recessed openings 'I'hejpart unc es-9,. of the pattern section frames Z 52 i -2- 2; (see 191 of Figure .2) which are recessed t oallowv the adjustable clamping of theniatch plate; enough clearance being alf lowedbetw'een the said clamping strips 3-3- 3+3, and the. recessed parts 9-.9--9-9, to per.-

Ini t easy adjustment of the "said clamping strips s 'ewiifm the. Figure 1 .Inthe frame 1, re-

cessed provisions areQ-also; utilized to receive the adjustable, clamping" strips 3 -3--3-.-3, said recessed'par'ts of frame II, having enough clearance to the match plate};

The ustable.

Figure 3,1'and thel-r'eniovable runner bar '4, see

tio'n frames 2-2-'z-2, (wm' iiiin this instance j frame l,- and frames 2-2-2-2; are metal), the

adjustable clamping strips 3-3-3-3, the removable runner bar 4, the runner bar screws 5-5, the adjustable clamping strip screw 6--B-66, and the pattern sections III-lfl-lll-lll (which in this instance is a thermosetting casting resin) see Figure 1 and Figure 1A. (the pattern sections, which will be specified as plastic pattern sections, are cast in the metal section frames 2-2-2-2) constitute the entire sectional match plate.

In the main frame I, Figure 1, one or more recessed openings, (four in this instance) are provided to receive one or more removable metal section frames 2-22-2, see Figure 2, (four in this instance) the said section frames 2-2- 2-2, have flanged edges l2-l,2--l2--l2, which fit into the said recessed openings of frame I. enough clearance being allowed at the point of FigureYIA; (whichjffurictlons also as a clamping bar) in conjunction with the tightening of the. runner bar screws 5 -5, andlthe adjustableclamping strip screws fi-g-fi-G-fii; securely clamps all the said sections 'I of the matchplate, securely in the recessed openingsin frame I.

The runner, ha isjremovable from the frame I, .t o provide for; different typerunner bars, when needed, and is securely held :in place by tightenm t ss we imiii f e F ur D the sa a aner bar 4, a'sgshown ingtheul 'igure 1A, and Figure 1, rests directly on the flanged edges l2-l'2-- l'2l2, of the said metal section frames 2-2- '22, which contact the runner bar 4. The portion of the frame I, lying directly under the runner bar 4, is. recessed below the surface of the frame I, to permit a sufficient amount of clearance between the runner bar 4, and. the bottom of the said recess in frame I, to attain a clamping action when the runner bar 4, contacts the flanged edges l2-l2--i2--l2, of the said frames 2-22--2, and the screws 5-5 are tightened.

The adjustable clamping strips 3-3-3-3, Figure 3, have elongated counter-bored holes 8-8- 8--8, which receive screws 66--6--6, said counter-bored holes permit easy adjustment of the permit. easv dlustment of the said clamping. strips g s-1: 3 m: not interfere with the foundrvffiasEwhenTsamefis set in position on said clamping strips 3333, which in conjunction with the said screws 6-E-6-6, permits said clamping strips 3-3-3-3, to be set securely in position when clamping the said metal section frames 2-2-2-2, in the recessed openings provided in the frame I.

The removable runner bar 4 and the adjustable clamping strips 333-3, provides a. quick method of removing or replacing, and. inter-.

changingthe said sections 2'.2:-2?.2, of: the. frame I, without entirely removing the screws 5--5, or 6666, from the frame I, first, by loosening the screws 5-5, in the runner bar 4,

which releases the clamping pressure exertedon the flanged edges l2--l2l2-,-l=2 contacting.

the runner bar 4, of the said section frames.22-

2-2, and second, by loosening thescmwsi' 6-6, of the clamping strips 33-33, andslida ing back the said clamping strips 33---3--3,' away from the recessed parts 8-9-9-9, of the said section frames 2+2 -2'-2.

The adjustable clamping strips 3,33'-3- and the removable runner bar" 4, are to be: lccatedon; theframe I", in any such location as to accommodate the number or sections in the frame i and to meet the foundry requirements.

The recessed openings in the frame'l', which receive the section frames 2--2-2-2, are in such location as to allow one or more flanged edges [2 of the section frames 2--2*-2' 2 (in thisi'nstanoe eight flanged edges I 2, of theses:- tion-frames-'22-2-2) to extend partly beyond the inside oftheflask line ofthe frame l, permitting the foundry flasktorest on one or more of the flanged edges i2", of'the said-metal sec tion frames 2'2-2--2, thislocation'of the said sections 2-2-2-2; when th'e" flask is setfi'n position on the frame the sections of th matchplate to withstand the shock and stress of sand molding operations.

The parts I! and 1 of the. section frames 29-2- 2-2, aroundwhich the plastic pattern sections lib-ID -l'U-IO are cast, are tongued or grooved (tongued in the present instance) said tongue],

(which runs completely around the inside. of the. said frames 2-2-2-2) being. on aparallel with the surface of the match plate and-of a uniform wall thickness to permit a slight. shrinkage or expansion of the said plastic pattern sections.

l 0l 0-l'B'-l l! and-still remain securely tongued in the said sections M-JiL-IU-JU', the parts of the said pattern sections |0'|'0-lU--|0, which contact the metalsection' frames; 2-2-2-2; after the plasticpattern sections I0'-iU--lfli0', are cast, (in this instance a thermosetting casting resin is referred to) inthe metal section frames: 2-2-2-2, and are-protected from chip-' ping or breaking when subjected tothe rough handling of foundry molding operations.

l additionally supports ali The metal section frames 222----! and the metal frame I, can be adapted to accommodate pattern sections made of other materials suitable to foundry molding operations.

The tongue 'I and adjoining parts H, which contact the plastic pattern sections Illl0-Ill- 10, can be coated if necessary, with a synthetic rubber paint or other suitable parting agent to provides. non-adhering surfacev which will allow the! piasicpattern sections l:ll-l 0-4 Il-l 0, to shrink or expand independently of the said metal frames 22-2-2 and prevent the said sections lU-ifl-lfl-IO from breaking or cracking'w-henusing a material for the said pattern sectionslwhioh does shrink or expand.

I am aware that prior to my invention, seca combination broadly; but I claim:

A ma tchplate comprising in combination. a unitary rigid main frame having sides, ends and a centrall'y disposed; member forming at least two openings. in the frame, said sides, ends and centrally disposed members beingv recessed about the sidesffacing said openings, flanged. pattern c r ying. blocks disposed in said openings in such.

fashion thatthe flanges on said blocks are received' in the recesses. in said openings, clamping strips vre'movably secured to. said main frame. a slot in' each clamping strip whereby said strip maybe movedjover an outer flange of. an. adjacent pattern carrying block to enga e said flang v andclampsaid block'into said recessed opening and'a centrally disposed removable, runner bar adaptedto be positioned on said central member and over an inner flange of: each. pattern block,

wherebyjsai'd inner flange may be clamped; into said recessed opening. each clamping, strip andv runner bar'copperati'ng'to form a clamp securring a pattern block in'the recessed opening provid'edtherefor. H p I EDWARD REDER, JR.

REFERENCES CITED The following-references are. of record. in the 2,394,394. Miller Feb. 5, 19,46.