US125302A - Improvement in devices for securing punches to their stocks - Google Patents
Improvement in devices for securing punches to their stocks Download PDFInfo
- Publication number
- US125302A US125302A US125302DA US125302A US 125302 A US125302 A US 125302A US 125302D A US125302D A US 125302DA US 125302 A US125302 A US 125302A
- Authority
- US
- United States
- Prior art keywords
- punch
- punches
- stocks
- securing
- devices
- 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
- 239000000203 mixture Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 244000221110 common millet Species 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 210000001699 lower leg Anatomy 0.000 description 2
- 238000004519 manufacturing process 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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/34—Perforating tools; Die holders
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T279/00—Chucks or sockets
- Y10T279/17—Socket type
- Y10T279/17863—Shouldered-tang holding
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/929—Tool or tool with support
- Y10T83/9411—Cutting couple type
- Y10T83/9423—Punching tool
- Y10T83/9428—Shear-type male tool
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/929—Tool or tool with support
- Y10T83/9457—Joint or connection
- Y10T83/9473—For rectilinearly reciprocating tool
- Y10T83/9476—Tool is single element with continuous cutting edge [e.g., punch, etc.]
Definitions
- the rivetholes in boiler-plates and for other purposes.
- the punches in such ma chines have been ordinarily secured in their stocks or holders simply by friction, and to obtain sufficient surface therefor have been of considerable length to enter correspondingly long sockets. Forging them to fit the sockets in their stocks or holders is a very delicate operation, and one requiring considerable time, and when once fitted it is a difficult matter to detach them.
- the object of this invention is to reduce the labor of manufacturing the punches, to facilitate their attachment to their stocks and detachment therefrom; also, to render their attachment positive likewise, by reducing the length of the punch, to economize the amount of steel used.
- Figure 1 is a perspective view of a punch stock or holder and attached punch constructed according to my invention
- Fig. 2 is a central section of the same.
- A is the stock or holder in which the punch is secured. It is provided, as usual, with a shank, a, for its attachment to the press, and has a taper slot extending transversely through it, communicating with the under side of which is the socket for the punch B.
- the upper part of this socket is flaring-or, in other words, ta-' pered from the top downward.
- the punch B is of such length as to permit of its being inserted into its socket in the stock through the slot therein.
- 0 is the key which fits within the slot and secures the punch therein.
- the punch is first inserted through the slot in the stock into the socket provided for its reception, and is prevented from slipping through by means of its tapered or swelled upper portion fitting the flarin g portion of the socket.
- the key 0 is then inserted in the slot and driven in tight, and by bearing on the top of the punch it secures it in place, and that in a positive and rigid manner. To detach the punch it is only necessary to remove the key, and. the punch may then be readily taken out by the hand.
Description
JOHN JOHNSON. Imprdvemeht in Devices for Securing Punches to their S'tbcks..,
No. 125,302. PatentedApril2J872',
UNITED STATES PATENT QEEIOE,
JOHN JOHNSON, OF NEW YORK, N. Y.
IMPROVEMENT IN DEVICES FOR SECURING PUNCHES TO THEIR STOCKS.
Specification forming part of Letters Patent No.125,302, dated April 2, 1872.
. in g the rivetholes in boiler-plates and for other purposes. Heretofore the punches in such ma chines have been ordinarily secured in their stocks or holders simply by friction, and to obtain sufficient surface therefor have been of considerable length to enter correspondingly long sockets. Forging them to fit the sockets in their stocks or holders is a very delicate operation, and one requiring considerable time, and when once fitted it is a difficult matter to detach them. The object of this invention is to reduce the labor of manufacturing the punches, to facilitate their attachment to their stocks and detachment therefrom; also, to render their attachment positive likewise, by reducing the length of the punch, to economize the amount of steel used. To this end it consists in the combination, with a stock or holder transversely slotted above the punch-socket, of a punch capable of being inserted through the stop of the holder into its socket, said punch having its upper portion swelled or enlarged to prevent it from dropping through the socket, and a key which fits said slot and bears on the top of the in place.
In the accompanying drawing, Figure 1 is a perspective view of a punch stock or holder and attached punch constructed according to my invention, and Fig. 2 is a central section of the same.
punch and retains it Similar letters of reference indicate corresponding parts in both figures.
A is the stock or holder in which the punch is secured. It is provided, as usual, with a shank, a, for its attachment to the press, and has a taper slot extending transversely through it, communicating with the under side of which is the socket for the punch B. The upper part of this socket is flaring-or, in other words, ta-' pered from the top downward. The punch B is of such length as to permit of its being inserted into its socket in the stock through the slot therein. 0 is the key which fits within the slot and secures the punch therein.
The punch is first inserted through the slot in the stock into the socket provided for its reception, and is prevented from slipping through by means of its tapered or swelled upper portion fitting the flarin g portion of the socket. The key 0 is then inserted in the slot and driven in tight, and by bearing on the top of the punch it secures it in place, and that in a positive and rigid manner. To detach the punch it is only necessary to remove the key, and. the punch may then be readily taken out by the hand.
Claim.
The combination, with the socketed and transversely-slotted stock or holder A, of the punchB having an enlarged upper portion, and the key 0, substantially as and for the purpose herein set forth.
JOHN JOHNSON.
Witnesses:
FRED. HAYNES, R. E. RABEAU.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US125302A true US125302A (en) | 1872-04-02 |
Family
ID=2194731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US125302D Expired - Lifetime US125302A (en) | Improvement in devices for securing punches to their stocks |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US125302A (en) |
-
0
- US US125302D patent/US125302A/en not_active Expired - Lifetime
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