US1312157A

US1312157A - Planookaph co

Info

Publication number: US1312157A
Authority: US
Publication date: 1919-08-05
Anticipated expiration: 1936-08-05

Description

wn'mzssss' a Z10 INVENTOR C. F. BUENTE.

COLLAPSIBLE CORE FOR MOLDS. APPLICATION FILED 001'. 2. 1911.

Patented Aug. 5, 1919.

2 SHEETS-SHEET 1- THE cOLuMmA PLANOGRAPH c0.. WASHINGTON. D. c.

C. F. BUENTE. CQLLAPSIBLE CORE FOR MOLDS. APPLICATION FILED OCT. 2. 19H.

1 ,3 1 2, 1 57. Patented Aug. 5, 1919.

2 SHEETS-SHEET 2- WITNESSES INVENTOR WWW 1% $4 THE COLUMBIA PLANOCIRAPH 60., WASHINGTON, n. C.

UNITED STATES PATENT omnon conmrsitrin c m os Mann s;

1,312,157. fiiicifilifiiif L e-earnest rate-med hag. 5; i919:

- t Wk ni u -nm ti m: i 1 1 Application filed October 2,1917. Serial No. 192,389. I

c in n a to. instances Be it 'known that I, OI-IARLEs F ben Q I wIi my Z m 1 a citizen of the United States, re ding at R es r g on the pallet is a base plate 3,

Avalon, All e y. c us nlien ey rani ha e v n an ew and, n fl almpr ee m e i P i 1e, e dr Ms l i which the following is a ifull, cleargaud exact description, re heinghad the accompanying drawings, fori'ni'ng part of this specification, in which; Figure 1 is avertical section through one form of my improvecl corel a, a Fig. 2 is a horizonta1 section of a portion ofthe core shown in Fig. 1.' as t a Fig. 3 is atsimilar View showing the key segments withdrawn, 1 a a t Fig. 4L is a. detail sectional view of a pore tion of the structure showingathe connections between one of the key segments," and the main segments, and i Fig. 5 is an edge view of a portion one of the main segments. l This invention relates to an improvement in collapsible core for molds, and more pan tioularly relates to cores for concrete molds.

The object of myinyention islto provide core which. can readily. be collapsed and extended,- aild in which all ofithe parts are connected to each other. A {further object of my inventionisto providea core in which the various members will automatically be collapsed when a single operating member is actuated; A furthergobjectbf my ,invention is to provide a core in which the tops and the bottoms of the members can bead justed relative to each other, in which all of the membersQ-will be moved at an angle to the axis ofthe mold" and at an angle to the line at right anglesto the axis of the mold.

eferring to the accompafiyingdrawings, the reference character 2 designates abas'e boardorpallet forsupport ing the core and molded article the outer edges of which are arranged to be engaged by the outer 'secti ons of the mold, which may be of any approved type, or the type shown in my cO-pending The precise natiire cf my mea est will h is (c nect d avails br s e a nil d smel fufl s e hance ia nt: eesle..i;mn- Ilse c a ends of a h sta es eer dto espe inamem e i it'hat in a snide pr ect les i a the en th rwf 1n heic' n t l ti show t e e re eight;

teer the a radi l} arms a d ghte de ltei etiellsi whi h; te ms four e soot gu des 180? tram; ea h et r, for gu ding the. ey s i e a her ina t r de c ibeds The Ecor teelti s t ur a n me s and ennkey egmentsfi .iE ch of t key egmen 3 a is ar anged 1 to Slide Q l wo.

uide nreiec iens 1. le rly nd c t i F g-v an c nnected wre h oft e; k nsf se ese 13 are. l n s il 1 The l n 5 are conne ted. to t e a k y s s tsl ear (the low r en thereof and are also nec ed to @Slide block;L 16, guidedjlbetween the angle bars 5t yEajch of thei;linksl 15 is connected to ,a key seg'nicljlt 13 nean the upper end thereof and: aslide 3131061? 117 above the slide block11'6. flhisusli'de block ,171 iSufilSO ar rangetltoi beguicled hby the ahglebarsfi;

These slide. blocks 16 and a 171 are connected to cachother by meanslof aifrod" 18 which arranged toipermitjonetofi the blocks to be adjnsted relative ito. the other to square up theislides of; the key segments with relae tion to thewpallt. .i Therod 18 is {provided withwa screw l9lwhich extends upithrough the i nutj; I? and; them-upper end lofa this: screw i 'sipi'ovided with aneye 20 which is arranged to beieiigaged by. the hook of crane or. any suitable device 1 to. lift the .core' as hereinafter described; The riiairlisfcgments vfi are bro-2 vided with two brackets 21 at; each vertical edgthereo fat qdoints adjacent to the ends ofthe'l'links. 14 ancl15. Thesebrackets are prdvided wi-tha recess having an inclined race 22lian'd stops 23and 24. 25 are pins or inroj'ections which extend laterally from the key segments 113 into the recesses in the brackets 21', and in this case Lhave shown these pins as continuations of the pivot plns for the'ends of the links l land 15, although separate projections may be formed on the key segments. The brackets'21; and pins are so positioned that the pins normally move along the incline 22 which are at'the same angle as the guide projections 11, the

stops 23; and 24 are arranged to beengaged g by the pins 25 to shift the main segments 12 when collapsing or placing thecore. Connected to the pallet is an annular centering member 26 whichalso forms the bottom for the article to be molded, which in this case is a sewer pipe, and which is arranged to center the segments which form the collapsible core. The upper ends of adjacent main segments are connected'to eachother by ad justable rods 27"whicli freely pass through openings in brackets'28"on*the segments 12 when the'co're is collapsed, but prevent the movement of these members, beyond a predetermined point when'the core is extended. The operation ofthe device isas follows: If it is desired to remove the formed article to a'position' other than that at which it is formed, the core, together with the. formed pipe, can bodily be moved to anotherpoint by connecting the chain hook of a'crane to the eye 20. As the chainis raised by means ofthe crane, the'pipe will be supported on the palletwhich will, in turn be supported by the different segments of the collapsible core which have an undercut engagement with the annular centering member 26. After the device hasbeen moved to the desired'point, the hand wheel'8 is operated, which will elevate the screw 19, and which will, in turn, move the slide blocks 16 and 17 upwardly. This upward movement of the slide blocks 16 and 17 will first movethe key-segments 13 inwardly and upwardly. As soon as-the pins 25 engage the stops-24, thefurther movement of the key segments 13 will drawfthe main segments 12 inwardly away from the pipe. As soon as the core has been collapsed sufliciently, it can beremovedfrom the pipe by means ofthe crane.

The core is then moved to another pallet, and the-base'plate 3'is lowered thereon; As soon as the base plate is seated on the pal-- let, the handwheel 8 is moved-in the're-' Verse direction to extend the core into en-- gagement-..with' the centering member 26.

It will readily be" understood by those familiar with "the art that if it is desired article by the actuating mechanism, and supported by the frame when withdrawn.

Also from the )rovision of core havim a plurality of mam segments and a plurality of key segments connected to each other in such a manner that the key segments will first be operated and which will, in turn, operate the main segments. Another advantage results from the provision and means for moving the segments upwardly away from the pallet when the core is collapsed, together with positive supporting and guiding means for the core segments on the frame.

I claim:

1. A collapsible core for a mold comprising'a' plurality of main segments, a plurality of key segments and means to move the key segments toward each other and then move the main segments toward each other, substantially as described.

2. A collapsible core for a mold comprising a supporting frame, a plurality of key segments, guides on said frame for the key segments, a plurality of main segments, means for moving the key segments relative to each other, and connecting means between the key segments and the main segments for shifting the main segments after the key segments 112]."6 been moved a predetermined distance, substantially as described.

"3. A collapsible core for a mold comprising a plurality of main segments, a plurality of key segments, means to move the key segments toward and from each other, guiding means for said key segments, and means for moving the main segments after the key segments have been moved a predetermined distance, substantially as described. 4} A collapsible core for a mold comprissegments, means on' the frame for guiding the key segments, actuating mechanism for moving the key segments relative to each other mounted on said frame, a plurality of main segments, and connections between the key segments and: the main segments for actuating the main segments after the key segments have been moved a predetermined distance, substantially as described.

5. A mold having a supporting frame, a

plurality of mold members arranged to move relative to each other, and mechanism for moving the mold members relative to each other, supported on said frame, sub stantially as described.

6. A mold having a supporting frame, a plurality of mold members arranged to move relative to each other, mechanism connected to the frame for moving the mold members relative to each other, and guide members on the frame and some of the mold members for supporting and guiding said mold members when moved away from their molding positions, substantially as described.

mga supporting frame, a plurality of key 7. A mold having a central supporting frame, two sets of mold members arranged to move relative to each other, guiding supports on the frame for one set of said members, actuating connections for said members, and actuating and supporting members on the first set of members for moving the second sets of members and supporting them during the movement thereof, substantially as described.

8. A mold having a base plate or sup port, a supporting frame mounted thereon, guide members on said supporting frame, a plurality of mold sections mounted on said guides and arranged to move thereon, actuating members connected to the supporting frame and mold members, said actuating members and guides being arranged to move the mold members toward each other and away from the base of the mold, other mold sections arranged to move to and from each other, and means for moving the last mentioned mold sections, substantially as described.

9. A concrete mold comprising a pallet, a frame mounted thereon, guides on said frame, a plurality of mold sections mounted on said guides, said guides being arranged to cause the mold sections When moved toward or away from each other to be moved in an angle With relation to the pallet, actuating devices for the mold sections mounted on the frame, other mold sections between the first mentioned mold sections, and means on the first mentioned mold sections for moving and supporting the second mold sections, substantially as described.

In testimony whereof, I have hereunto set my hand.

CHARLES F. BUENTE.

Gopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). G.