US2985930A - Chaplets - Google Patents

Chaplets Download PDF

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Publication number
US2985930A
US2985930A US791155A US79115559A US2985930A US 2985930 A US2985930 A US 2985930A US 791155 A US791155 A US 791155A US 79115559 A US79115559 A US 79115559A US 2985930 A US2985930 A US 2985930A
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chaplet
legs
core
base
mold cavity
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Expired - Lifetime
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US791155A
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Jr Harvey F Hohlfelder
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F HOHLFELDER Co
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F HOHLFELDER Co
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C21/00—Flasks; Accessories therefor
    • B22C21/12—Accessories
    • B22C21/14—Accessories for reinforcing or securing moulding materials or cores, e.g. gaggers, chaplets, pins, bars

Definitions

  • This invention relates to chaplets, more particularly to an improved chaplet which provides support for a core in at least three directions.
  • Chaplets have long been used in the foundry art to support cores in'metal receiving cavities of molds, the chaplets being fused into the casting when molten metal enters the mold. Some chaplets are designed to fit directly into the mold or the core or both. Other chaplets are designed to sit in the metal receiving cavity. Chaplets of the latter type shown in the prior art have a hollow rectangular cross section, the top portion thereof supportingthe core and. .the bottom portion resting on the floor of the mold cavity. Although this typeis' 'far easier to use than the former type, great difliculties have been encountered due to shifting and even breakdown of the cores, particularly when long narrow cores are used. My improved chaplets eliminate this diificulty by providing support for the core in at least three directions.
  • Figure 1 is a vertical section through a mold illustrating the manner in which my improved chaplets are used
  • Figure 2 is an enlarged perspective view of one embodiment of my invention
  • FIG. 3 is an enlarged perspective view of an alternative form of my improved chaplet
  • Figure 4 is an enlarged perspective view of another embodiment of my invention.
  • Figure 5 is an enlarged perspective view of another form of my improved chaplet.
  • chaplets constructed according to my invention are used in normal casting operations in which the mold comprises a bottom board and a drag 11 and cope 12 in which a mold cavity 13 has been formed.
  • the core 14 is supported substantially entirely within the mold cavity by chaplets 15 and 15a.
  • chaplet 15 embodies my invention
  • chaplet 15a supporting the top of the core, may be any conventional chapleta coil head shoulder radiator chaplet being shown.
  • a chaplet embodying my invention could be used in place of the coil head chaplet 15a.
  • Molten metal is poured into the mold through a gate 16.
  • my improved chaplet shown in Figure 2, it comprises a base having a centrally located portion thereof projecting inwardly to form a raised flat surface 21 on which the core rests.
  • Legs 22 extend from the base in the same direction as the projection, and portions of the legs intermediate the upper and lower portions are adapted to support the sides of the core.
  • a portion 23 of the upper end of each of said legs above the level of the projection are offset outwardly to contact the side walls of the mold cavity and brace the chaplet to prevent lateral movement of the chaplet in the mold. Chaplets of this nature can be readily manufactured, requiring only a single stamping operation from a thin strip of low melting alloy.
  • the metal is preferably perforated to any chilling effect, to permit the free flow of metal around the chaplet, and to prevent the entrapment of gas which might result in gas pockets in the casting.
  • Figure 3 shows an alternative form of chaplet embodying my invention comprising a base 30 having a centrally located portion thereof projecting inwardly forming a flat surface 31 on which the core rests.
  • Legs 32 extend from the base in the same direction as the pro jection, the sides of the legs supporting the-sides of the core.
  • the upper ends of the legs are turned outwardly and extend downwardly substantially parallel to the upstanding portion of the legs as shown at 33.
  • the downwardly extending portion 33 of each leg braces the chaplet against the side walls of the mold cavity to prevent lateral movement of the chaplet in the mold.
  • FIG. 4 shows another embodiment of my invention comrising a base 40 having a centrally located portion projecting inwardly forming a flat surface 41 on which the core rests.
  • Legs 42 extend from the base in the same direction as the projection bracing the chaplet against the side walls of the mold cavity to prevent lateral movement of the chaplet in the cavity.
  • the upper ends of the legs are turned over and extend downwardly substantially parallel to'the upstanding portion of the legs to the inside of said legs as shown at 43.
  • the downwardly extending portions 43 of the legs support the sides of the core. 7
  • FIG. 5 Another form of my invention is illustrated. in Figure 5.
  • the core rests on a base 50.
  • Legs 51 extend from the base and support the side walls of the core.
  • the upper ends of the legs are turned over outwardly and extend downwardly substantiall parallel to the upstanding portion of the legs as shown at 52.
  • the downwardly extending portion of the legs braces the chaplet against the side walls of the mold cavity to prevent lateral movement of the chaplet in the cavity.
  • the downwardly extending portions of the legs extend below the base and are turned inwardly forming feet 53 running substantially .parallel to the 'base which supports the chaplet on the floor of the mold cavity.
  • my improved chaplet supports the core in the mold cavity in at least three directions, the core sitting on the base of the chaplet and the legs thereof supporting the side walls of the core. Furthermore, lateral movement of the chaplet in the mold cavity is prevented. With this type of support, a core cannot shift in the mold cavity and breakdown of the core is very unlikely.
  • a chaplet for supporting a core in position in a mold cavity having a floor and side walls comprising: a base having at least a portion on which a core rests elevated above the floor of the mold cavity; and legs connected to opposed ends of said base, said legs having portions above the elevated portion of the base, in planes normal to the plane of the elevated base portion which engage the sides of the core, said legs also having portions in planes parallel to the planes of the sideengaging portion of the legs which engage the walls of the mold cavity.
  • a chaplet for providing three-way support for a core in a mold cavity having a floor and side walls comprising: a base having a centrally located projection forming a flat surface on which the core rests, and two legs connected to and extending fromthe base in the same direction as said projection of the base, said legs supporting the sides of the core, a portion of the upper ends of said legs above the level of said projection of the base being oifset outwardly, the offset portion of said legs bracing the chaplet against the sidewalls of the mold cavity to prevent lateral movement of the chaplet in the mold cavity.
  • a chaplet for providing three-way support for a core in a mold cavity having a floor and side walls comprising: a base having a centrally located projection forming a flat surface on which the core rests, and two legs connected to and extending from the base in the same direction as said projection of the base, said legs supporting the sides of the core, the upper ends of said legs being turned over and extending downwardly substantially parallel to the upstanding portion of the legs, the downwardly extending portion of the legs bracing the chaplet against the side walls of the mold cavity to prevent lateral movement of the chaplet in the mold cavity.
  • a chaplet for providing three-way support for a core in a mold cavity having a floor and side walls comprising: a base having a centrally located projection forming a flat surface on which the core rests, and two legs connected to and extending from the base in the same direction as said projection of the base, said legs bracing the chaplet against the side walls of the mold cavity to prevent movement of the chaplet in the mold cavity, the upper ends of said legs being turned over and extending downwardly substantially parallel to the upstanding portion of the legs, said downwardly extending portion of the legs supporting the sides of the core.
  • a chaplet for providing three-way support for a core in a mold cavity having a floor and side walls comprising: a base on which the core rests, and legs connected to and extending from the base which support the sides of the core, the upper portion of the legs being turned over and extending downwardly substantially parallel to the upstanding portion of the legs to a distance below the base and being turned substantially parallel to the base, the downwardly extending portion of the legs bracing the chaplet against the side walls of the mold cavity to prevent lateral movement of the chaplet in the mold cavity and the portion thereof extending parallel to the base supporting the chaplet in the mold cavity.
  • a chaplet for supporting a core in position in a mold cavity having a floor and side walls comprising: a base having at least a portion on which a core rests elevated above the floor of the mold cavity; and legs connected to opposed ends of said base, said legs having portions extending above the elevated base portion which engage the sides of the core, said legs also having portions which engage the walls of the mold cavity.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Description

United States Patent CHAPLETS Harvey F. Hohlfelder, In, Painesville, Ohio, assignor to The F. Hohlfelder Company, Cleveland, Ohio, a corporation of Ohio Filed Feb. 4, 1959, Ser. No. 791,155
6 Claims. (Cl. 22-184) This invention relates to chaplets, more particularly to an improved chaplet which provides support for a core in at least three directions.
Chaplets have long been used in the foundry art to support cores in'metal receiving cavities of molds, the chaplets being fused into the casting when molten metal enters the mold. Some chaplets are designed to fit directly into the mold or the core or both. Other chaplets are designed to sit in the metal receiving cavity. Chaplets of the latter type shown in the prior art have a hollow rectangular cross section, the top portion thereof supportingthe core and. .the bottom portion resting on the floor of the mold cavity. Although this typeis' 'far easier to use than the former type, great difliculties have been encountered due to shifting and even breakdown of the cores, particularly when long narrow cores are used. My improved chaplets eliminate this diificulty by providing support for the core in at least three directions.
I have shown the present preferred embodiments of my invention in the accompanying drawings in which:
Figure 1 is a vertical section through a mold illustrating the manner in which my improved chaplets are used;
Figure 2 is an enlarged perspective view of one embodiment of my invention;
Figure 3 is an enlarged perspective view of an alternative form of my improved chaplet;
Figure 4 is an enlarged perspective view of another embodiment of my invention; and
Figure 5 is an enlarged perspective view of another form of my improved chaplet.
As shown in Figure 1, chaplets constructed according to my invention are used in normal casting operations in which the mold comprises a bottom board and a drag 11 and cope 12 in which a mold cavity 13 has been formed. The core 14 is supported substantially entirely within the mold cavity by chaplets 15 and 15a. While chaplet 15 embodies my invention, chaplet 15a, supporting the top of the core, may be any conventional chapleta coil head shoulder radiator chaplet being shown. However, if greater support is required a chaplet embodying my invention could be used in place of the coil head chaplet 15a. Molten metal is poured into the mold through a gate 16.
Referring to the embodiment of my improved chaplet shown in Figure 2, it comprises a base having a centrally located portion thereof projecting inwardly to form a raised flat surface 21 on which the core rests. Legs 22 extend from the base in the same direction as the projection, and portions of the legs intermediate the upper and lower portions are adapted to support the sides of the core. A portion 23 of the upper end of each of said legs above the level of the projection are offset outwardly to contact the side walls of the mold cavity and brace the chaplet to prevent lateral movement of the chaplet in the mold. Chaplets of this nature can be readily manufactured, requiring only a single stamping operation from a thin strip of low melting alloy. The metal is preferably perforated to any chilling effect, to permit the free flow of metal around the chaplet, and to prevent the entrapment of gas which might result in gas pockets in the casting.
Figure 3 shows an alternative form of chaplet embodying my invention comprising a base 30 having a centrally located portion thereof projecting inwardly forming a flat surface 31 on which the core rests. Legs 32 extend from the base in the same direction as the pro jection, the sides of the legs supporting the-sides of the core. The upper ends of the legs are turned outwardly and extend downwardly substantially parallel to the upstanding portion of the legs as shown at 33. The downwardly extending portion 33 of each leg braces the chaplet against the side walls of the mold cavity to prevent lateral movement of the chaplet in the mold.
. Figure 4 shows another embodiment of my invention comrising a base 40 having a centrally located portion projecting inwardly forming a flat surface 41 on which the core rests. Legs 42 extend from the base in the same direction as the projection bracing the chaplet against the side walls of the mold cavity to prevent lateral movement of the chaplet in the cavity. The upper ends of the legs are turned over and extend downwardly substantially parallel to'the upstanding portion of the legs to the inside of said legs as shown at 43. The downwardly extending portions 43 of the legs support the sides of the core. 7
Another form of my invention is illustrated. in Figure 5. The core rests on a base 50. Legs 51 extend from the base and support the side walls of the core. The upper ends of the legs are turned over outwardly and extend downwardly substantiall parallel to the upstanding portion of the legs as shown at 52. The downwardly extending portion of the legs braces the chaplet against the side walls of the mold cavity to prevent lateral movement of the chaplet in the cavity. The downwardly extending portions of the legs extend below the base and are turned inwardly forming feet 53 running substantially .parallel to the 'base which supports the chaplet on the floor of the mold cavity.
From the foregoing, it is readily apparent that my improved chaplet supports the core in the mold cavity in at least three directions, the core sitting on the base of the chaplet and the legs thereof supporting the side walls of the core. Furthermore, lateral movement of the chaplet in the mold cavity is prevented. With this type of support, a core cannot shift in the mold cavity and breakdown of the core is very unlikely.
While I have described the present preferred embodiments of my invention, it is to be understood that it may be otherwise embodied within the scope of the following claims.
I claim:
1. A chaplet for supporting a core in position in a mold cavity having a floor and side walls, said chaplet comprising: a base having at least a portion on which a core rests elevated above the floor of the mold cavity; and legs connected to opposed ends of said base, said legs having portions above the elevated portion of the base, in planes normal to the plane of the elevated base portion which engage the sides of the core, said legs also having portions in planes parallel to the planes of the sideengaging portion of the legs which engage the walls of the mold cavity.
2. A chaplet for providing three-way support for a core in a mold cavity having a floor and side walls, said chaplet comprising: a base having a centrally located projection forming a flat surface on which the core rests, and two legs connected to and extending fromthe base in the same direction as said projection of the base, said legs supporting the sides of the core, a portion of the upper ends of said legs above the level of said projection of the base being oifset outwardly, the offset portion of said legs bracing the chaplet against the sidewalls of the mold cavity to prevent lateral movement of the chaplet in the mold cavity.
3. A chaplet for providing three-way support for a core in a mold cavity having a floor and side walls, said chaplet comprising: a base having a centrally located projection forming a flat surface on which the core rests, and two legs connected to and extending from the base in the same direction as said projection of the base, said legs supporting the sides of the core, the upper ends of said legs being turned over and extending downwardly substantially parallel to the upstanding portion of the legs, the downwardly extending portion of the legs bracing the chaplet against the side walls of the mold cavity to prevent lateral movement of the chaplet in the mold cavity.
4. A chaplet for providing three-way support for a core in a mold cavity having a floor and side walls, said chaplet comprising: a base having a centrally located projection forming a flat surface on which the core rests, and two legs connected to and extending from the base in the same direction as said projection of the base, said legs bracing the chaplet against the side walls of the mold cavity to prevent movement of the chaplet in the mold cavity, the upper ends of said legs being turned over and extending downwardly substantially parallel to the upstanding portion of the legs, said downwardly extending portion of the legs supporting the sides of the core.
5. A chaplet for providing three-way support for a core in a mold cavity having a floor and side walls, said chaplet comprising: a base on which the core rests, and legs connected to and extending from the base which support the sides of the core, the upper portion of the legs being turned over and extending downwardly substantially parallel to the upstanding portion of the legs to a distance below the base and being turned substantially parallel to the base, the downwardly extending portion of the legs bracing the chaplet against the side walls of the mold cavity to prevent lateral movement of the chaplet in the mold cavity and the portion thereof extending parallel to the base supporting the chaplet in the mold cavity.
6. A chaplet for supporting a core in position in a mold cavity having a floor and side walls, said chaplet comprising: a base having at least a portion on which a core rests elevated above the floor of the mold cavity; and legs connected to opposed ends of said base, said legs having portions extending above the elevated base portion which engage the sides of the core, said legs also having portions which engage the walls of the mold cavity.
References Cited in the file of this patent UNITED STATES PATENTS 1,099,672 Sonnet June 9, 1914 1,459,464 Bradley June 19, 1923 1,877,049 Raible Sept. 13, 1932 2,560,258 Snyder et al. July 10, 1951 FOREIGN PATENTS 183,516 Germany Oct. 25, 1955 336,575 Germany May 6, 1921 OTHER REFERENCES Fanner Chaplets publication, Catalog 1050, Farmer Manufacturing Co., Brookside Park, Cleveland 1, Ohio.
US791155A 1959-02-04 1959-02-04 Chaplets Expired - Lifetime US2985930A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3401738A (en) * 1966-02-10 1968-09-17 United Aircraft Corp Core location in precision casting
US4487246A (en) * 1982-04-12 1984-12-11 Howmet Turbine Components Corporation System for locating cores in casting molds
FR2569590A1 (en) * 1984-09-03 1986-03-07 Peugeot Cooling bed for moulding pieces in a foundry
US5505250A (en) * 1993-08-23 1996-04-09 Rolls-Royce Plc Investment casting
US8813821B2 (en) * 2012-12-05 2014-08-26 Hamilton Sundstrand Corporation Aerospace sand casting support
US11224913B2 (en) * 2017-05-02 2022-01-18 Bayerische Motoren Werke Aktiengesellschaft Holding device for holding a casting core in a casting mold

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE183516C (en) *
US1099672A (en) * 1912-10-01 1914-06-09 Heinrich Sonnet Core-support.
DE336575C (en) * 1919-02-07 1921-05-06 Louis Courtot Core holder for cast pipes or similar long hollow bodies
US1459464A (en) * 1920-09-25 1923-06-19 John W Bradley Molder's chaplet
US1877049A (en) * 1930-02-25 1932-09-13 Charles G Raible Chaplet
US2560258A (en) * 1949-04-20 1951-07-10 Snyder Francis Paul Mold chaplet

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE183516C (en) *
US1099672A (en) * 1912-10-01 1914-06-09 Heinrich Sonnet Core-support.
DE336575C (en) * 1919-02-07 1921-05-06 Louis Courtot Core holder for cast pipes or similar long hollow bodies
US1459464A (en) * 1920-09-25 1923-06-19 John W Bradley Molder's chaplet
US1877049A (en) * 1930-02-25 1932-09-13 Charles G Raible Chaplet
US2560258A (en) * 1949-04-20 1951-07-10 Snyder Francis Paul Mold chaplet

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3401738A (en) * 1966-02-10 1968-09-17 United Aircraft Corp Core location in precision casting
US4487246A (en) * 1982-04-12 1984-12-11 Howmet Turbine Components Corporation System for locating cores in casting molds
FR2569590A1 (en) * 1984-09-03 1986-03-07 Peugeot Cooling bed for moulding pieces in a foundry
US5505250A (en) * 1993-08-23 1996-04-09 Rolls-Royce Plc Investment casting
US8813821B2 (en) * 2012-12-05 2014-08-26 Hamilton Sundstrand Corporation Aerospace sand casting support
US9101975B2 (en) 2012-12-05 2015-08-11 Hamilton Sundstrand Corporation Aerospace sand casting support
US11224913B2 (en) * 2017-05-02 2022-01-18 Bayerische Motoren Werke Aktiengesellschaft Holding device for holding a casting core in a casting mold

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