US172247A - Improvement in the art of forming the eyes of picks - Google Patents
Improvement in the art of forming the eyes of picks Download PDFInfo
- Publication number
- US172247A US172247A US172247DA US172247A US 172247 A US172247 A US 172247A US 172247D A US172247D A US 172247DA US 172247 A US172247 A US 172247A
- Authority
- US
- United States
- Prior art keywords
- forming
- eyes
- art
- picks
- 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
- 239000002184 metal Substances 0.000 description 14
- 229910052751 metal Inorganic materials 0.000 description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000011159 matrix material Substances 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 150000002505 iron Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
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
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
- B21D51/40—Making outlet openings, e.g. bung holes
- B21D51/42—Making or attaching spouts
Definitions
- Figure 1 is a face view of one of the two duplicate dies forming the first set, showing the stock inserted and operated upon by the punch.
- Fig.2 is a view of the first set of dies, in transverse section, in the plane indicated by the dotted line a; wfshowing the stock inserted, and clamped and upset by the closing of the dies, but before being operated upon by the punch.
- Fig. 1 is a face view of one of the two duplicate dies forming the first set, showing the stock inserted and operated upon by the punch.
- Fig.2 is a view of the first set of dies, in transverse section, in the plane indicated by the dotted line a; wfshowing the stock inserted, and clamped and upset by the closing of the dies, but before being operated upon by the punch.
- FIG. 3 is a face view of one of the two duplicate dies forming the see- I 0nd set, showing the stock, (2'. 6., the product of the first set of dies,) inserted ready to be operated upon by the punch.
- Fig. 4 is a view of the same as Fig. 3, except that the punch has opcrated'on the stock.
- Fig. 5 is a view of the product of the second set of dies.
- ershoes are usually made of iron, having steel welded in or on for the points or edges.
- This iron body is formed first, and is called the poll.
- the dies and punches I make use of in putting this invention in practice are for forming and producing elongated eyes in such polls.
- This invention is an improvement in the art of forming elongated eyes upon the bodies of picks and analogous articles; and it consists, first, in partly setting down and opening out the metal intended for forming the eye; second, inserting an additional piece of metal into the partly-formed eye; thirdly, welding said piece to the surrounding metal, and at the same timefurther elongating the eye.
- the punch c then advances, as shown in Fig. 1, making a hole into, but not through, the bar, and causing the metal to fill the matrix of the die.
- punch 0 now retreats, the dies open, and the stock is removed. It is again heated, the heated additional stock-piece d is dropped into the hole formed by the punch c, and then grasped between the second set of dies f f, asshown in Fig. 3.
- the punch gnow advances to position shown in Fig. 4, further elongating the eye, and perfectly welding and merging the piece din the surrounding stock.
- the webcap a. is sawed or ground off on the plane :0.
- the eye can be still further elongated by repetitions of this process.
Description
L. CHAPMAN.
ART OF FORMING THE EYESOF PICKS.
No.172,247. Patented Jan. 18,1876.
wall
um-mu m H; ll-lilllll'llV UNITED STATES PATENT QFFIC'E.
LUKE cEAPMAN, OF 'coLLINsvILLE, c0NNEcTIcUT, AssIeNoE To THE COLLINS COMPANY, OF sAME PLAcE.
IMPROVEMENT IN THE ART OF FORMING THE EYES OF PICKS.
Specification forming part of Letters Patent No. 172,241 7, dated January 18, 1876 application filed February 24, 1875.
CASE J.
To all whomit may concern:
Be it known that I, LUKE CHAPMAN, of Collinsville, in the county of Hartford and State of Connecticut, have invented certain new and usefulr Improvements in the Art of Producing Elongated Eyes for Pickaxes, and articles having similar elongated eyes, reference being had to the accompanying drawings, where- Figure 1 is a face view of one of the two duplicate dies forming the first set, showing the stock inserted and operated upon by the punch. Fig.2 is a view of the first set of dies, in transverse section, in the plane indicated by the dotted line a; wfshowing the stock inserted, and clamped and upset by the closing of the dies, but before being operated upon by the punch. Fig. 3 is a face view of one of the two duplicate dies forming the see- I 0nd set, showing the stock, (2'. 6., the product of the first set of dies,) inserted ready to be operated upon by the punch. Fig. 4 is a view of the same as Fig. 3, except that the punch has opcrated'on the stock. Fig. 5 is a view of the product of the second set of dies.
The bodies of pickaxes, adzes, and plant: ershoes are usually made of iron, having steel welded in or on for the points or edges.
This iron body is formed first, and is called the poll. The dies and punches I make use of in putting this invention in practice are for forming and producing elongated eyes in such polls.
This invention is an improvement in the art of forming elongated eyes upon the bodies of picks and analogous articles; and it consists, first, in partly setting down and opening out the metal intended for forming the eye; second, inserting an additional piece of metal into the partly-formed eye; thirdly, welding said piece to the surrounding metal, and at the same timefurther elongating the eye.
The thickness of the stock-bar a, relative to the matrix of the dies, is shown in Fig. l,
and its breadth, (partly by dotted lines,) in
propriate machinery, close together face to face, and, in thus closing, upset the bar, and force an extra amount of stock into the matrix of the die, as shown in Fig.2. The punch c then advances, as shown in Fig. 1, making a hole into, but not through, the bar, and causing the metal to fill the matrix of the die. The
punch 0 now retreats, the dies open, and the stock is removed. It is again heated, the heated additional stock-piece d is dropped into the hole formed by the punch c, and then grasped between the second set of dies f f, asshown in Fig. 3. The punch gnow advances to position shown in Fig. 4, further elongating the eye, and perfectly welding and merging the piece din the surrounding stock. The webcap a. is sawed or ground off on the plane :0. The eye can be still further elongated by repetitions of this process.
Lclaim as my invention- The herein-described improvement in the art of forming elongated metallic eyes, which consists in, first, partly setting down. and opening out the metal intended to form the eye; second, inserting an additional piece of metal into the partly-formed eye; and, third, welding said piece to the surrounding metal,
andat the same time further elongating the' eye, all substantially as shown and described.
LUKE CHAPMAN. Witnesses: v WM. EDGAR SIMoNDs, GEORGE E. NOLAN.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US172247A true US172247A (en) | 1876-01-18 |
Family
ID=2241654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US172247D Expired - Lifetime US172247A (en) | Improvement in the art of forming the eyes of picks |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US172247A (en) |
-
0
- US US172247D patent/US172247A/en not_active Expired - Lifetime
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