Sand core pattern and method of forming a sand mold
A sand core pattern (11) for producing a one-piece cast wheel (10) having a radially inner shell (12), a radially outer blade support (13), and a plurality of angled blades (14) extending in a spaced, annular array (22). The pattern includes a plurality of similar segments (15), each having an inner...
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| creator | FLESBURG EDWARD E |
| description | A sand core pattern (11) for producing a one-piece cast wheel (10) having a radially inner shell (12), a radially outer blade support (13), and a plurality of angled blades (14) extending in a spaced, annular array (22). The pattern includes a plurality of similar segments (15), each having an inner end portion (18) defining a portion of the profile of the shell, and an outer end portion (21) defining the profile of the blade. The segments are supported in annular array about a mandrel (25) and are circumscribed by a split ring (26) defining the pattern for the outer blade support portion of the wheel (10). The inner portions of the segments are defined by angled side surfaces (16,17) which, in alternate ones of the segments in the annular array, converge and diverge toward the center of the array. Upon completion of the forming of the sand mold about the pattern, the mandrel and outer ring are removed, permitting the segments having the inwardly diverging side faces to be withdrawn inwardly from the array and permit the remaining segments then to be withdrawn inwardly therefrom. |
| format | Patent |
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The pattern includes a plurality of similar segments (15), each having an inner end portion (18) defining a portion of the profile of the shell, and an outer end portion (21) defining the profile of the blade. The segments are supported in annular array about a mandrel (25) and are circumscribed by a split ring (26) defining the pattern for the outer blade support portion of the wheel (10). The inner portions of the segments are defined by angled side surfaces (16,17) which, in alternate ones of the segments in the annular array, converge and diverge toward the center of the array. Upon completion of the forming of the sand mold about the pattern, the mandrel and outer ring are removed, permitting the segments having the inwardly diverging side faces to be withdrawn inwardly from the array and permit the remaining segments then to be withdrawn inwardly therefrom.</description><language>eng</language><subject>BLASTING ; CASTING ; ENGINEERING ELEMENTS AND UNITS ; FOUNDRY MOULDING ; GEARING ; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS ; HEATING ; LIGHTING ; MECHANICAL ENGINEERING ; PERFORMING OPERATIONS ; POWDER METALLURGY ; THERMAL INSULATION IN GENERAL ; TRANSPORTING ; WEAPONS</subject><creationdate>1981</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19811013&DB=EPODOC&CC=US&NR=4294303A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19811013&DB=EPODOC&CC=US&NR=4294303A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>FLESBURG; EDWARD E</creatorcontrib><title>Sand core pattern and method of forming a sand mold</title><description>A sand core pattern (11) for producing a one-piece cast wheel (10) having a radially inner shell (12), a radially outer blade support (13), and a plurality of angled blades (14) extending in a spaced, annular array (22). The pattern includes a plurality of similar segments (15), each having an inner end portion (18) defining a portion of the profile of the shell, and an outer end portion (21) defining the profile of the blade. The segments are supported in annular array about a mandrel (25) and are circumscribed by a split ring (26) defining the pattern for the outer blade support portion of the wheel (10). The inner portions of the segments are defined by angled side surfaces (16,17) which, in alternate ones of the segments in the annular array, converge and diverge toward the center of the array. Upon completion of the forming of the sand mold about the pattern, the mandrel and outer ring are removed, permitting the segments having the inwardly diverging side faces to be withdrawn inwardly from the array and permit the remaining segments then to be withdrawn inwardly therefrom.</description><subject>BLASTING</subject><subject>CASTING</subject><subject>ENGINEERING ELEMENTS AND UNITS</subject><subject>FOUNDRY MOULDING</subject><subject>GEARING</subject><subject>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</subject><subject>HEATING</subject><subject>LIGHTING</subject><subject>MECHANICAL ENGINEERING</subject><subject>PERFORMING OPERATIONS</subject><subject>POWDER METALLURGY</subject><subject>THERMAL INSULATION IN GENERAL</subject><subject>TRANSPORTING</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1981</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDAOTsxLUUjOL0pVKEgsKUktylMACeSmlmTkpyjkpymk5RflZualKyQqFIMl8nNSeBhY0xJzilN5oTQ3g7yba4izh25qQX58anFBYnJqXmpJfGiwiZGlibGBsaMxYRUA_jsq8Q</recordid><startdate>19811013</startdate><enddate>19811013</enddate><creator>FLESBURG; EDWARD E</creator><scope>EVB</scope></search><sort><creationdate>19811013</creationdate><title>Sand core pattern and method of forming a sand mold</title><author>FLESBURG; EDWARD E</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US4294303A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1981</creationdate><topic>BLASTING</topic><topic>CASTING</topic><topic>ENGINEERING ELEMENTS AND UNITS</topic><topic>FOUNDRY MOULDING</topic><topic>GEARING</topic><topic>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</topic><topic>HEATING</topic><topic>LIGHTING</topic><topic>MECHANICAL ENGINEERING</topic><topic>PERFORMING OPERATIONS</topic><topic>POWDER METALLURGY</topic><topic>THERMAL INSULATION IN GENERAL</topic><topic>TRANSPORTING</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>FLESBURG; EDWARD E</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>FLESBURG; EDWARD E</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Sand core pattern and method of forming a sand mold</title><date>1981-10-13</date><risdate>1981</risdate><abstract>A sand core pattern (11) for producing a one-piece cast wheel (10) having a radially inner shell (12), a radially outer blade support (13), and a plurality of angled blades (14) extending in a spaced, annular array (22). The pattern includes a plurality of similar segments (15), each having an inner end portion (18) defining a portion of the profile of the shell, and an outer end portion (21) defining the profile of the blade. The segments are supported in annular array about a mandrel (25) and are circumscribed by a split ring (26) defining the pattern for the outer blade support portion of the wheel (10). The inner portions of the segments are defined by angled side surfaces (16,17) which, in alternate ones of the segments in the annular array, converge and diverge toward the center of the array. Upon completion of the forming of the sand mold about the pattern, the mandrel and outer ring are removed, permitting the segments having the inwardly diverging side faces to be withdrawn inwardly from the array and permit the remaining segments then to be withdrawn inwardly therefrom.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BLASTING CASTING ENGINEERING ELEMENTS AND UNITS FOUNDRY MOULDING GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS POWDER METALLURGY THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS |
| title | Sand core pattern and method of forming a sand mold |
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