US43669A - Improvement in method of making bolts - Google Patents
Improvement in method of making bolts Download PDFInfo
- Publication number
- US43669A US43669A US43669DA US43669A US 43669 A US43669 A US 43669A US 43669D A US43669D A US 43669DA US 43669 A US43669 A US 43669A
- Authority
- US
- United States
- Prior art keywords
- dies
- bolt
- improvement
- angular
- cylindrical
- 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
- 238000004519 manufacturing process Methods 0.000 title 2
- 230000000875 corresponding Effects 0.000 description 4
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 235000013382 Morus laevigata Nutrition 0.000 description 2
- 244000278455 Morus laevigata Species 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
- B21J13/03—Die mountings
Description
UNITED STATES PATENT OEEICE.
IMPROVEMENT IN METHGD OF MAKING BOLTS.
Specification forming part of Letters Patent No. 43,669, dated August 2, 1864 5 antedated February 2, 1864.
To all uhom it mary concern: l
Be it known that I, WILLIAM J. CLARK, of the town of Southington, in the county of Hartford, State of Connecticut, have invented a new and useful improvement in the maillit'acture ot' bolts from round rods or bars. For this purpose I construct a pair of dies of cast-iron or other metal, making the grooves therein for a portion of their length of a semicylindrical form, and the remaining portion of an angular form. with a groove of this character, willpermit the two when placed together to present atv one end a cylindrical opening, corresponding 'in diameter to that of the cylindrical bolt-blank, while the opening at the opposite end, instead of being cylindrical, will be square or angular, but of similar section al area to the cylindrical end, so that when the two dies are forced together upon bolt-blank (which is heated to a proper degree before being placed therein) that part of the blank lying within the angular portion ot1 the grooves will be swaged out and forced to take the angular form corresponding to that ofthe angular portion of the groove, while the part lying Within the c vlindrical-portion of the groove will retain its original shape 5 and while the bolt-blank is hel'd in the dies they form an anvil upon which a portion of the blank projecting from the dies at the end containing the angular groove Each die being provided is upset and formed into a head by anyA proper machinery.
Figure 1 represents the dies open to au inf terior view, showing a square or angular form in each for a portion of the length of the dies as long as may be required on the bolt, the said square or angular form gradually merg# ing into a semi cylindrical form in each of the dies to conform to the size ot' the rod to be used. Fig. 2 shows the front or anvil end of the dies, on which the head of bolt is formed. Fig. 3 shows the back or cylindrroal end. Fig. 4 shows the bolt as completed of one form ot' head, tut I confine myself to no particular form ot' head.
That I claim is-- The combination and use ot' metallic dies for the purpose of giving angular shape to a portion of'a cylindrical bolt, by compression laterally, leaving the remaining portion of the bolt in its original form, and which dies at tho same time serve the purpose of an anvil, upon Whichthe head of the bolt is formed by upsetting a projecting portion thereof, substantially as set forth.
Washington, District of Columbia, March WM. J.V CLARK. Witnesses:
G. E. UPsoN, L. G. HINE.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US43669A true US43669A (en) | 1864-08-02 |
Family
ID=2113235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US43669D Expired - Lifetime US43669A (en) | Improvement in method of making bolts |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US43669A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3211300A (en) * | 1962-02-26 | 1965-10-12 | Woolard Fritz Hertford | Tobacco harvesting stick |
-
0
- US US43669D patent/US43669A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3211300A (en) * | 1962-02-26 | 1965-10-12 | Woolard Fritz Hertford | Tobacco harvesting stick |
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