US1344409A - Centrifugal casting-machine - Google Patents

Description

UNITED STATES OFFICE.

JAMES B. LADD, OF ARDMORE, PENNSYLVANEA, ASSGNOR T UNITED STATES CAST IRON PIPE AND FOUNIDRY CMPANY, F BURLINGTON, NEW JERSEY, A CORPORA TION 0F NEW JERSEY.

CENTBUGAL CASTIN G-1VI ACHINE.

Application filed November 1918.

T o all whom if may Conner?? Be it known that I, Janne li, Laon, a citizen of the `United States, residing in Ardmore, in the county of l\lontg omer)Y anfl State of Pennsylvania, have invented eerY tain new and useful Improvements in fentrifngal Casting-Mael1i1ies, of which the followingr is a true and exact description, ret erenee being had to the accompanying drawin s, whifh forni a part thereof.

ly present invention relates to eentriw gal casting machinesl for forming piper@ or like tubular eas-tinge, and has for its. geni-ral object to provide improvements in the east ing apparatus adapted'to facilitate the easy and expeditioue removal of Caetinge troni the mold of the centrifugal casting nlaehine in which they are cast.

The various features ol' novelty whieh characterize my invention are pointed ont with partieularity .in the elaixne annexeil to, and forming a part ot' this speeiiieation. F or a better understanding of the invention, however, and the advantages obtained with its use, reference should be had to the evconlpanying drawings and descriptive niet ter in which I have illustrated ancl iieeeriiierl preferred embodiments of my invention.

Of the drawings: 3g Figure l is an elevation. with partel hrolqen away and in section. or" a preferred forni oi centrifugal pipe eaeting apparatus untimely ing my present invention.

F ig. 2 is a plan, with parts broken away and in section, of a portion of the appara-ties shown in Fig. l.

F ig. 3 is a partial section on the line BH3 of F 1g. 2. Y

Fig. 4 is an end elevation, with parte broken away and insection, of a portion of the apparatus shown in Fig. 2.

Fig. 5 is a partial sectional elevation of a portion of the apparatus Shown in Fie'. l, illustratingr a different condition et the apparatns from that shown in Fig. 1.

Fig. 6 is a section on the line -l of Fig. l. I,

Fig. T is a partial section taken einiilarlv to Fig. l illustrating a modified eonetrnr tion.

' Fig. 8 is a Section illustrating a detail ot construction of the mold employed with the v'modification illustrated in Fig. 7.

Specification of Letters Pa tent.

Patented June 22. i920.

Seria No, 266.855,

Mg. ie wlan view of a molo part .shown o Fig Y..

Fig, lf3 is a section taken similarlyv to Fig.

l, showing a portion ol' the a )parat'ns shown in that ligure on larger scale. i

In the drawings, A represents a pelleetal at the hell emi ot' a Centrifugal rusting,r ina- 6U rhino for reeling; a pietal pipe with a hell at onreini. ioller supports A for the roiarv pipe niohl li are jonrnalerl in the pedestal A. l represents an integral hearing roller fornirti on the hell end of the revolvin; r metal pipe xnolrl body B which is ,lil'ertlv engaged hy the peripheries of the support hip rollers A. The-bell end ol' the pipe inolll l ie rloeetl during the Casting opera tion liv :i renewable enp .shaped emi nienlher i0 (fr 'formell ol1 metal and lletaehalilv eernrwl to the lnolil l prope as by nieahe ot' the pivoter! whooping holte B2. To 'l'nrilitate the proper insertion and ready removal oi the member C from the niolll B, the nienilier (i is preferably formell with a conical hotly portion enterinr a cenit-al portion of the main niolrl part B at `the end ol the lnolfl cavity proper. and is provided with a flange at the heee ot' this conical portion which 30 ahnte aff inet the enfl of the niohl lioely il. Tl ling portion of the end inemY es an axial tubular hoes t n n ilrletl sand eore portion in the i'orin of' an annular collar Ci", which ie 3 provitlell :o ith` periphery with a ril (m to forni liu nepal packing groove S in the hell enll oll the east metal pipe Advan tagreonelv the eollar C3 is supported on a niernlnr (,i' removably Inountefl on the llo C and romprieingf a tubular portion son rounding the hoes (f2, and a radial flange at the outer wml ot the tubular portion. At ite inner anni the nnoltl end niexnher C is lorinml with a hearing C for trnnnion D turmoil on the roi-responding end of the metal ponring irongh D. The end lnernoer C is also l'orineel with a Spider portion having: a eonirnl openingr C* in its hub portion. The larger end of this conical *opening atljaren the inolcl eavity.

The enti member C is movetlinto the mold nienher li. :nifl removed frein the latter, by ineens* oi" an :irni F. mounted to swing about a vertiinl wir; As shown, the arm F eonr prieee a cenit-al hub portion F2 journaled or;

gli

lig-innig l` fila lila s! lfqli i" -i-illl llwu imm its fiiigzigglfuwllt willi i 'lili lill llzv simu ll"g 11 permil lill; fll'iiflgg Emmy uuml mi' lglw upper lvvm' liz. :mel il; www n. wm'. 'growling leuning nmwmeml; nl 'lio lllwl'i' lever (i5. Siam U2 ,uhmm :is in the iin-m mf rollers mounted 011 tim- 'iaifm mum-- liml A1", positively arregle thu movement UF tlw` pipe S :il thv point in ilS ll'i'llel llt which ille spurs G nl" the levers G4 release the ISQ iournaled :it its ends in the pedestals A", and is provided between the ends with an arm H (see Fig. 3) connected by links l", passing through. the openings A11' formed in the frame member A to the cross bend I2 carried by the plunger I of a fluid pressure motor cylinder I, shown as secured :it one end to the frame member A, l* represents the pipe for admitting motive fluid to'` and permitting its exhaust from the cylinder l.

In operation the motive luid as admitted to the c-.ylindor I is required to bring the arms H up against the underside of the pipe S before the spgotend of the latter leaves the supporting smrfzice formed by the rylindrioal bodv portion ot' the mold member l. The arms T then occupy the dotted line position marked H in Fig. Alfter the pipe is moved into the. dotted line position shown in Fig. 'l and is disengaged from the retractiug means, more motive fluid is admitted to the cylinder l to more tbc arms H into the dotted line isitionv marked H in Fig. 3. 'lho pipe S t ien rolls off the :irme H on lo the track rails l, provided to receive. the cast pipe.V The cyiinder i is then operated to re Europe. "arms H to the full line position slim in Fig. 3, and when en end member (l, carrying a fresh core collar C, is put in piave und scoured to the mold B the latter is in condition fo a. following rusting operation.

Where tho'pipe cast is cylindrical and of uniform third-:ness from oud to end, as is usually the rase with thin pipes` such as the pipo bil, shown in Fig. T, the modified form of apparatus, shown in Figs. 7, and 9 may be used. The pipe retraeting ineens propel', shown in Firr. T. comprises a stem G si.- cured to a .-lirlin,r carriage (if which may be mounted and operated as is the varriage (i2 in the construction first described. The` Stein G is providml. as :shown` with a single gripping lover G4 piroted to the stein Gm. und the latter is also provided with a stationary claw (.ir" which engages the outer surare of the pipe, the latter being." gripped between the ola-w (im and the roughened portion G of the .lever Gm in the pipe withdraw-.il operation. Tho lever (im is oonnected by a pin und slot connection G to a` lover G* pivoted to u collar (im sliding on the stem G3. The levers" G" and G are thus connected and are autoniaticelly adjusted in the pipe. griiliping and releasing operations in the same manner as are the levers ('i'r and G in the construction first described. To provide the olea-rance space necessary to permit of the movement of the claw G into the pipe enga ing position shown in F ig. 7, the mold enr member (C is formed with a )rejection C1". The latter.' is in the form oli a portion of a cylinder and is received in e corresponding shaped recess B formed in the main pipe niold member BB when the mold is in the aeserubled position for casting. The inner surface o the projection C then forms a portion of the cylindrical wal! of the mold eiwit v ll' iile in accordance with the :revisions of the statutes I have illustrated and de scribed the. best forms of. apparatus embodying my invention now known to me it will be apparent to those skilled in the urn that changes may be made in the form of the apparatus disclosed without departing from the spi rit of the invention as set fortli .in the appended claims and that certain features of my invention may sometimes be used to advantage without the correspond ing use of other features.

Haring non' described my invention, whatY I claim as new and desire to secure by Letters Patent, is:

l. in a centrifugal casting apparatus. the combination with a mold body and a support in which said body is rotatably mount ed, of an end member adapted to be insert ed in and detachably soeuredto said mold body and means for morini* said end mem bei' into and out of the. meid body comprising a pivoted arm mounted to turn about an axis transmise to.l and at one side of the axis of said mold body.

2. In u, centrifugal casting machine, the combination with u rotatable mold body and a support in which it is rotatably mounted, ol? an end member for removably closing one end of the mold, means for moving said end member from the position in which it closes the mold body end into aposition out ot alinement with the mold body, comprising an arm pivoted to turn about tie axis transverse to, and laterally displaced from the axis oi the mold.

3. ln a Centrifugal casting apparatus, the combination with a mold body and u sup port in which said body is'rotatably mounted., of en end member adapted to be inserted in and detachabl' connected to said mold bod and means or moving it into and out of t-lie mold body comprising a pivoted arm mounted to turn about an axis transverse to and at one side of the axis of said mold body. and means mounted on said arm and adjustable with respect to the arm in the direction of the axis of seid body in one position of said arm connecting the latter to Fluid member.

`4f. In a. centrifugal casting machine, the combination with a rotatable mold body and a support in which it is rotatably mounted, of an end member for removably closing one end of the mold, and means for moving,r said end member from the position in which it closes the mold endinto o position out ol? alinement with the mold body, oomprising an erm pivoted to turn about am axis transveree'to'nd laterally displaced from the traoting plunger movable axially of the molrl, und pipe gripping means carried by Suid plunger und comprising n lever havingr n portion adapted to engage the inner wall oi' tho rusting and n second lever engaging the mold on the movement of the plunger into tho pipe gripping position and shifting! tlm first named lever into engngeniont with tlnl inner wnll of the pipe.

`l. ln wntrifngnl pipe casting appointing tho conllrinntion of a rotating mold. and a lcwr into engagement with the inner will 2U of tlm pipeli JAMES B L *KDD

Images