US142070A - Jonathan yebkes - Google Patents
Jonathan yebkes Download PDFInfo
- Publication number
- US142070A US142070A US142070DA US142070A US 142070 A US142070 A US 142070A US 142070D A US142070D A US 142070DA US 142070 A US142070 A US 142070A
- Authority
- US
- United States
- Prior art keywords
- jonathan
- hammer
- yebkes
- dies
- cavity
- 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
- 210000003128 Head Anatomy 0.000 description 10
- 239000002184 metal Substances 0.000 description 8
- 210000003739 Neck Anatomy 0.000 description 6
- 230000000875 corresponding Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 210000000887 Face Anatomy 0.000 description 2
- 241000251131 Sphyrna Species 0.000 description 2
- 238000005498 polishing Methods 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
- 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 an end view thereof.
- Fig. 3 is a view ofthe inner face of one of the dies.
- Fig. 4 is a top view of a hammer partly finished.
- Fig. 5 is a top view of a finished hammer.
- This invention consists in dies adapted for the manufacture of doubleheaded hammers, whereby a superior article will be produced at less expense ⁇ than by means heretofore ein ployed.
- a A represent the two parts or sections of the die.
- the workin g-face of each section is formed with acavity, B, corresponding to the portion O of the hammer, surrounding its eye D with a cavity, E, corresponding to one head, F, of the hammer and with a cavity, G, correspondingto the
- the cavity E is separated from the cavity B by a ridge, J, and the cavity G from the cavity B by a ridge, K.
- the ridge J is adapted to work down and form the neck L of the hammer between the head F and eye portion O.
- the ridge K is adapted to work down and form the neck M of' the hammer between the eye portion C and head H.
- One section of the die will be properly secured to a plunger, to which reciprocating motion is imparted in any well-known manner, and the ⁇ other section is fixed to a suitable bed, the two sections being arranged that the depressions will be coincident.
- the operation is as follows: The bar of metal to be worked into hammer-heads is properly punched for the eye portion of the head, and the eye thus punched is occupied by a pin or filling for preventing the closing ot' the eye.
- the bar is now laid sidewise on the lower or stationary die and power communicated to the plunger to which the other or upper die is secured.
- the metal or stock will be worked into the various depressions in the faces of the dies and worked down at the portions corresponding to the necks L Mand by turning or rotating the bar when the upper plunger is elevated the metal will gradually assume the form or contour of the depressions and be worked down by the ridges J K.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
Description
` l.. vuE-RKES.A
Diesfor Forming Hammers. N0.. 142,070. y Patented August19,1873.
l Z152 @JMJ Vf www ma, N
. opposite head H.
UNITED STATES ATENT OFFICEo JONATHAN YERKES, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO YERKES & PLUMB, `OF SAME PLAGE.
IMPROVEMENT IN DIES FOR FORMING HAMMERS., i
Specification forming part of Letters Patent No. 142,070, dated August 19, 1873; application filedA July 18, 1873.
To all whom it may concern:
Be it known that I, JONATHAN YERKEs, of the city and county of Philadelphia and State of Pennsylvania, have vinvented a new and useful Improvement in the Manufacture of Hammers; and l dohereby declare the following to be a clear and exact description of the nature thereof, sufficient to enable others skilled in the art to which my invention appertains to fully understand, make, and use the same, reference being had to the accompanying drawings making part of this specilication, in which` Figure lis a central longitudinal vertical section of the dies embodying my invention. Fig. 2 is an end view thereof. Fig. 3 is a view ofthe inner face of one of the dies. Fig. 4 is a top view of a hammer partly finished. Fig. 5 is a top view of a finished hammer.
This invention consists in dies adapted for the manufacture of doubleheaded hammers, whereby a superior article will be produced at less expense` than by means heretofore ein ployed.
Referring to the drawings, A A represent the two parts or sections of the die. The workin g-face of each section is formed with acavity, B, corresponding to the portion O of the hammer, surrounding its eye D with a cavity, E, corresponding to one head, F, of the hammer and with a cavity, G, correspondingto the The cavity E is separated from the cavity B by a ridge, J, and the cavity G from the cavity B by a ridge, K. The ridge J is adapted to work down and form the neck L of the hammer between the head F and eye portion O. The ridge K is adapted to work down and form the neck M of' the hammer between the eye portion C and head H. One section of the die will be properly secured to a plunger, to which reciprocating motion is imparted in any well-known manner, and the` other section is fixed to a suitable bed, the two sections being arranged that the depressions will be coincident.
The operation is as follows: The bar of metal to be worked into hammer-heads is properly punched for the eye portion of the head, and the eye thus punched is occupied by a pin or filling for preventing the closing ot' the eye. The bar is now laid sidewise on the lower or stationary die and power communicated to the plunger to which the other or upper die is secured. The metal or stock will be worked into the various depressions in the faces of the dies and worked down at the portions corresponding to the necks L Mand by turning or rotating the bar when the upper plunger is elevated the metal will gradually assume the form or contour of the depressions and be worked down by the ridges J K.
The pin or filling in the eye portion of the metal, as aforesaid, is now removed, and the hammer-head as formed is in condition for grinding, polishing", and finishing.
Having thus described my invention, What I claim as new, and desire to secure bygLetters Patent, is-
The dies A .A for the manufacture of hammers, constructed and operating as herein set forth. Y
JONATHAN YERKES.
Witnesses I JOHN A. WrEnERsHEiM, vMILLARD F. WALTON.
Publications (1)
Publication Number | Publication Date |
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US142070A true US142070A (en) | 1873-08-19 |
Family
ID=2211483
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US142070D Expired - Lifetime US142070A (en) | Jonathan yebkes |
Country Status (1)
Country | Link |
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US (1) | US142070A (en) |
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0
- US US142070D patent/US142070A/en not_active Expired - Lifetime
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