US136479A - Improvement in dies for shaping hatchet-blanks - Google Patents
Improvement in dies for shaping hatchet-blanks Download PDFInfo
- Publication number
- US136479A US136479A US136479DA US136479A US 136479 A US136479 A US 136479A US 136479D A US136479D A US 136479DA US 136479 A US136479 A US 136479A
- Authority
- US
- United States
- Prior art keywords
- dies
- blanks
- hatchet
- shaping
- improvement
- 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
- 238000007493 shaping process Methods 0.000 title description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/08—Bending by altering the thickness of part of the cross-section of the work
- B21D11/085—Bending by altering the thickness of part of the cross-section of the work by locally stretching or upsetting
Definitions
- Fig. 2 is a vertical transverse section of the same taken on the plane of the line 0 c, Fig. 1.
- Fig. 3 is a plan or top View of the die.
- the invention consists in dies constructed as hereinafter described and claimed.
- a in the drawing represents the die used by me in the manufacture of hatchets. It has, near the forward end Where its surface a is concave or flat, projecting lips b b at the sides, the inner faces at of said lips being beveled, as is clearly shown in Fig. 2. Where the face of the die is convex or ridge shaped, as at e, the lips are not required, as the lateral enlargement of the blank over the rounded ridge is desirable.
- the die B is of the same form as an inverted die A.
- the blank to be shaped is placed on the lower die, and the upper then brought down.
- the lips b embrace the blank before the surfaces a can reach and press it; therefore, the lips prevent alllateral enlargement, and serve, in fact, to bevel the corners of the blank, and start the octagonal shape of the hatchet-head.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Description
J. YEBKES.
Dies for Shaping Hatchet'Blanks. NO. 13,6, 79, PatentedMarch 4,1873.
1.921 Jig. 2
mum;
AM PHOTO-L mm sRAHv/c ca A. mass amvzls Pnocsss.)
JONATHAN YERKES, OF FRANKFORD, (PHILADELPHIA,) PENNSYLVANIA, ASSIGNOR TO YERKES AND PLUMB, OF SAME PLACE.
IMPRGVEMENT IN DIES FCR SHAFiNG HATCHET-BLANKS.
Specification forming part of Letters Patent No. l3 ,4=7. dated March 4, 1873.
proved die for shaping hatchet-blanks, showing also the die B above the same. Fig. 2 is a vertical transverse section of the same taken on the plane of the line 0 c, Fig. 1. Fig. 3 is a plan or top View of the die.
Similar letters of reference indicate corresponding parts.'
The invention consists in dies constructed as hereinafter described and claimed.
The chief objection to the use of dies in the manufacture of hatchets, thus far, has been the lateral enlargement produced on the blanks by their pressure, and the consequent trouble of sharpening them. This is avoided by the use of the lips which permit the application of full power, and at the same time aid in giving shape to the blanks. The more tedious and expensive ordinary process of forging these blanks under power-hammers is thus substituted by the more effective and rapid action of the dies. 7
A in the drawing represents the die used by me in the manufacture of hatchets. It has, near the forward end Where its surface a is concave or flat, projecting lips b b at the sides, the inner faces at of said lips being beveled, as is clearly shown in Fig. 2. Where the face of the die is convex or ridge shaped, as at e, the lips are not required, as the lateral enlargement of the blank over the rounded ridge is desirable. The die B is of the same form as an inverted die A.
The blank to be shaped is placed on the lower die, and the upper then brought down. The lips b embrace the blank before the surfaces a can reach and press it; therefore, the lips prevent alllateral enlargement, and serve, in fact, to bevel the corners of the blank, and start the octagonal shape of the hatchet-head.
H avin g thus described my invention, I claim as new and desire to secure by Letters Patent- The dies A B, each provided with a convex portion, 6 c, and lips I), constructed substantially as described.
JONATHAN YERKES.
Witnesses:
PETER CASTOR, WM. B. HILL.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US136479A true US136479A (en) | 1873-03-04 |
Family
ID=2205895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US136479D Expired - Lifetime US136479A (en) | Improvement in dies for shaping hatchet-blanks |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US136479A (en) |
-
0
- US US136479D patent/US136479A/en not_active Expired - Lifetime
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