US237182A - Casting bolt-holes in chilled mold-boards - Google Patents
Casting bolt-holes in chilled mold-boards Download PDFInfo
- Publication number
- US237182A US237182A US237182DA US237182A US 237182 A US237182 A US 237182A US 237182D A US237182D A US 237182DA US 237182 A US237182 A US 237182A
- Authority
- US
- United States
- Prior art keywords
- holes
- boards
- mold
- chilled mold
- casting bolt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000005266 casting Methods 0.000 title description 8
- 239000004576 sand Substances 0.000 description 8
- 238000001816 cooling Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D15/00—Casting using a mould or core of which a part significant to the process is of high thermal conductivity, e.g. chill casting; Moulds or accessories specially adapted therefor
Definitions
- A represents the upper part of a flask, and B the lower part or drag.
- G is the chill, which is constructed and secured to the drag B in the manner described in Letters Patent No. 228,064, granted to me May 25, 1880.
- the die E is cast with a sharp point, F, upon its large end, about three-sixteenths of an inch in diameter at its base and three-sixteenths of an inch long.
- the mold-board pattern G are formed countersunk or tapering holes considerably larger than the required bolt-holes, and into the said holes are fitted similarlyshaped cups H, which have holes formed through them tapered or flared in the opposite direction and of the size of the required bolt-holes.
- the dies E are placed in the cups H, and the cups and dies are placed in the holes in the pattern G, the points F of the dies being pressed down into the green sand in the holes D.
Description
(No Model.)
' B. B., HARRIS.
. Casting Bolt Holes in Chilled Mold Boards.
No. 237,182. Patented Feb. 1,1881.
{Z A A A V J a 1: z if J B I,
WITNESSEST INVENTOR:
ATTORNEYS.
N. PETERS, PHOTO-LITHDGRAPHER WASHINGTON, D, c.
UNITED STATES PATENT. OFFICE.
BURNETT B. HARRIS, OF SOUTH BEND, INDIANA.
CASTING BOLT-HOLES IN CHILLED MOLD-BOARDS.
SPECIFICATION forming part of Letters Patent No. 237,182, dated February 1, 1881.
Application filed June 30, 1880. (No model.)
To all whom it may concern Be it known that I, BURNETT B. HARRIS,
of South Bend, in the county of St. Joseph holes in chilled mold-boards with metal dies in such a manner that the contraction of the casting in cooling will not break off the points from the metal dies or crack the mold-boards.
A represents the upper part of a flask, and B the lower part or drag. G is the chill, which is constructed and secured to the drag B in the manner described in Letters Patent No. 228,064, granted to me May 25, 1880.
In the chill U,in the place where a die is to be placed, I drill a hole, D, three-eighths of an inch (more or less) in diameter and depth, and fill the said hole with green sand.
The die E is cast with a sharp point, F, upon its large end, about three-sixteenths of an inch in diameter at its base and three-sixteenths of an inch long. In the mold-board pattern G are formed countersunk or tapering holes considerably larger than the required bolt-holes, and into the said holes are fitted similarlyshaped cups H, which have holes formed through them tapered or flared in the opposite direction and of the size of the required bolt-holes. The dies E are placed in the cups H, and the cups and dies are placed in the holes in the pattern G, the points F of the dies being pressed down into the green sand in the holes D. After the mold has been formed the cups H are removed and the pattern G is drawn, leaving the dies E in place upon the chill, the resistance of the sand to the points F being sufficient to prevent the dies E from slipping out of place. With this construction the contraction of the mold-board in cooling will have no effect upon the dies E, as the sand in the holes D will yield promptly.
Having thus fully described my invention, I claim as new and desire to secure by Letters Patent In chills for casting bolt holes in moldboards, the combination, with the chill D, having sand-holes D, and the die E, having point F, of pattern G, having countersun k holes filled with corresponding cups H, as shown and described.
BURNETT B. HARRIS. Witnesses:
WILLIS A. BUGBEE, GEO. W. MATTHEWS.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US237182A true US237182A (en) | 1881-02-01 |
Family
ID=2306540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US237182D Expired - Lifetime US237182A (en) | Casting bolt-holes in chilled mold-boards |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US237182A (en) |
-
0
- US US237182D patent/US237182A/en not_active Expired - Lifetime
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