US1078446A - Collapsible core-bar. - Google Patents

Description

A. H. LEWIS.

flfiLLAPSIBLE CORE BAR.

APPLIUATION FILED JUNE s, 1913.

Patented Nov. 11, 1913.

2 SHBETS-SIIEDT 1.

A. H. LEWIS. GOLLAPSIBLE GORE BAR. APPLIUATION FILED JUNE 8, 1913.

Lmfiflw; Patented Nov. 11, 1913.

2 SHEETS-$113131 Z.

q/vM-Mamme a ALBERT H. LEWIS, on new COMERSTOWN, oisfio, .essienon on o ONE-THIRD T CHARLES e. sraansn, soul.

R. STARKER AND TOWN, OHIO,

ei-rates.

To all whom, it may concern: i Be ittknown that I, ALBERT H. LEW-1s, a

citizen of the United States, residing at,

New (Jomerstown, in the county of Tusca- 5 raWas-and State ofOhio, have invented new adjacent its upper end,

and useful Improvements in Collapsible -ore-l3ars, of which the following is a speciflcation.

My present invention has to do with col, lapsible core bars, such as are used in metal founding; and it contemplates the provision of a sectional andccllapsible core bar, I embodying peculiar and advantageous means for detachably securing the sections against movement with respect to each other, and for releasing the sections at the proper time for such movement, so as to facilitate the withdrawal of the core bar.

With the :t'oregoing in mind, the invention in all of its details will be any understood from the following description and claims when the same are read'in-connection with the drawings, accompanying and forming part of this specification, in which:

Figure 1 is a View, partly in elevation and partly insection, showing my novel core bar or print with the body sections locked for use. Fig. 2 is a similar View shmving the core bar or print in a collapsed state. I Fig.3 is an enlarged detail section illustrative of the resilient latches and the parts adjacent thereto. Figs. 4 and 5 are sections taken on the lines H and .5-5, respectively, of Fig. 1.

Similar letters designate parts in all of the views of. referring to which: I

A A are the downwardlytapered metallic sections, and BB are the upwardly-tapered metallic sections, comprised in the cylindrical body of the corelbar the sections A being arranged oppositeeach other, as are also the sections B, and the sections B being in terpcsed between the sections A andvicc verse. v I G is a. central stem arranged within the cylindrical body, and having, an aperture (1 and equipped with collars b b"; the said collars b 6' being fixed to the stem by set screws 6, or other means compatible with the purpose of myinvention."

D is e vertically-movable sleeve that rests corresponding the drawings,

Specification of Letters ftatentr Application filed Tune 3, 11313.

upper and pivoted at their oute e ends against the inner (JOLLAiPEJIBLE OUEEQBAR.

itateirteeil time It it, serial No: Wiesel ,on the lower collar Z, and surrounds the stem t) and has a large base flange 0, and an com 'iarat-ivcl v smell flange (Z, and surrounding; and ll'lOWllf) urticall, sleeve D is a collar ll? to :hich t 1e i of in" hase flange oi? the and these link.

are

sleeve Dare links c inner sides of the Fixed by a set sort the stein C is collar said collar F G, which or other means to and pivoted to the are ver icelly swinging arms are designed to at their outer sides of the sections At ii." on. the stem U able sleeve hat i2 1' a l upper compare ti ei r otcd to the said base on the collar 5, 1' Cally swingii 'inl' said links liei pi lugs on the inner cities in the sleeve H and extent flanges 57 and are diam tr slots 2', and formed in tl or stem is a dianietrical slot t, w h is regisi :c. with the s; d slots Arranged in the said 7 and an :etween L is opposite slots 2' and 2 and fixedly connected at their stem Care resilient latches The said latches are provided Wltll in lower ends to the I.

tei'niediate outwardly proiecting and rounded portions 71?, and are also provided with hereled heads on'upper ends 5. Surrounding theslecre iii and the latches pivoted ally 11mi l and movable vertically hetween the flanges g and 71V of the sleeve, is a collar J, and con necting the said collar with lugs e on the inner sides of the sections 1h are vertically swinging links H. v i

The collard is provided with diametrieny opposite arms J and fixed with respect to and rising from the said arms J are upright rods J having- .heads at their upper ends. lhlovahle vertically on the said rods between the arms J and the heads of the rods are bars 1*, end to each oi. the said hairs J hlCOIlDfiCi td n couo 'ne; J".

through a link of the chain '1, and is de' 'end portions of which are bifurcated, and are pivotally connected to the ends .of the bars J Pivotally connected at their ends to the collar E and the collar J are rods P.

The couplings J are designed to be engaged by the hook-shaped arms of vertically swinging levers Q, the other arms of'sai levers being comparatively heavy. The levers Q, are fulcrumed on links at the lower ends of chainsR, and the said chains Rare conneted, in turn, to a ring S. This ring S is designed to be connected to a cable (not shown), for use in lowering the core bar and in raising the same from a flask; Also connected to the ring S is a chain T which. is connected in turn to a clevis U, a portion of which is disposed in the aperture a of the stem C. A bar V disposed in comparatively long links a of the chains R, is extended signed to be moved vertically by the said 7 upward heads of the rods J J acting against chains R can with the aid of the the stem by the chains R,as herev It will be notice 6 however,'at this point that because of the disposition of the bar V in the long links w, the be moved upwardly to a limit ed extent independently of the bar V and the chain T;

In the practical use of my improvements, the core bar or print is placed in a flask chain T, and also inafter described.

0, and at any suitable time precedent to the withdrawal of the bar or print, thefhooks of the levers Q are engaged with the couplings J 7 When it is'desired to remove'or withdraw the core bar or print, upward'pull is exupward pull will first raise the couplings J 5 and thereby draw the arms or latches G upwardly and inwardly. Subsequently tothe said movement of the arms or latches G, the continued ull on the ,couplings J will, by the bars dTti acting against the raise the collars E and ,J so as to raise and draw inwardly the body sections 'A.- The upward movement of the reason 0 collar J will press the latches I inwardlyso :as to enable the sleeve H to clear the heads of said latches, and "then the collarsE and the upper flanges of the 1 sleeves D and H, respectively, will move the said sleevesD and .H upwardly, and release all parts so as to enable the body,sec tions B to move downwardly. and contribute to the reduction of the core bar or print in diameter 50 that the same can be readily withdrawn.

- Continued'upward pullon the,

ringS wili then raise the'device as'aunit.

- '1 have enteredf nt'o detailed description 1 chain '1 connected with of the construction and relative arrangement of the parts embraced in the present and preferredembodiment of my invention in order to impart a full, clear, and exact understanding of the said embodiment. I do not desire, however, to be understood as confining myself to the said specific construction and relative arrangement of parts, as, in the future practice of the invention, such changes or modifications may be made as fairly fall within the scope of my appended claims.

Having-described my invention, what I claim and desire to secure byLetters-Patent, is:

1. The combination with a body having opposite downwardly-tapered sections and opposite upwardly -tapered sections, one pair of sections being movable with respect to the other, of a stem disposed within the group of body sections, movable latches carried by said stem and arranged to hold one pair of body sections against movement, collars movable on the stem in the direction of the length thereof and connected with 'sai pair of sections, means for moving the latches and the collars in the order named, and means connecting the other pair of body sections with the stem.

2. The combination with a body comprising opposite downwardly-tapered sections and opposite upwardly tapered sections alternating with the downwardly tapered sec-' tions, one pair of sections being movable with respect to the other, of a stem disposed within the group of sections, sleeves movable carried thereby, said sleeves and upper flanges, and the upper sleeve having diametrically opposite slots registered with a diametrical slot in the stem, links connecting the lower flanges of the sleeves with opposite body sections,

on supports having lower witnesses. I I I ALBERTHLEWIS.

Wimess'esz' I Man'MoEr-nor,

, Man? Beans.

endwise on the stem and normally resting swinging latches connected with the stem collars movable on the between the collars, d-

m .handi ni 'presence of two subscribing

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