US96339A - Improvement in shears - Google Patents
Improvement in shears Download PDFInfo
- Publication number
- US96339A US96339A US96339DA US96339A US 96339 A US96339 A US 96339A US 96339D A US96339D A US 96339DA US 96339 A US96339 A US 96339A
- Authority
- US
- United States
- Prior art keywords
- shears
- improvement
- prefer
- blades
- blade
- 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
- 238000010276 construction Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 229910001037 White iron Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 241001584785 Anavitrinella pampinaria Species 0.000 description 2
- 229910001060 Gray iron Inorganic materials 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B9/00—Blades for hand knives
Definitions
- My invention relates to the construction of the cutting-blades of shears in such manner that the desired length and strength may be attained with the use of less material, while at the same time there isa greater uniformity of thickness throughout their entire length, thus securing a high degree of elasticity and a more perfect conversion into steel in the case of shears which are first cast from gray or white iron and then converted into steel.
- a further beneficial result-arising from'my improved construction is a narrow cutting-edge which willnot become bevelled and dull so soon as the wider ones, and which, when dulled, can be much more readily put in order, particularly by persons not wholly familiar with theoperatiou of grinding such articles.
- Figure 1 is a perspective view of a pair of opened shears, embodying my improvement
- Figure 2 is a section of the same when closed, taken through theline y y, fig. 1.
- the drawing- A A are the blades ,of shears, of any usual or desired form or size, and may be made in any ordinary manner, although, in practice, I prefer to'cast them from common gray or white iron, and then to steelif'y them by some of the many well-known processes.
- B is a rivet, which secures the parts together, and also serves as a fulcrum.
- a is a groove, cavity, or recess, upon the inner face of each blade.
- Patent is-
Description
Fez/e zz/efdfi a lei/859 Witnesses:
tame sata- @stwt @fijiitr.
BLE-IRON COMPANY, OF SAME PLACE.
' Letters Patent No. 96,339, dated November 2, 1869.
IMPROVEMENT m snmms.
The Schedule referred to in theaelhetters Patentand making part of the same.
I, BYRON W. NICHOLS, of Cant-on, in the county of Stark, and State of Ohio, have invented certain- Improvements in Shears, of which the following is a specification.
. My invention relates to the construction of the cutting-blades of shears in such manner that the desired length and strength may be attained with the use of less material, while at the same time there isa greater uniformity of thickness throughout their entire length, thus securing a high degree of elasticity and a more perfect conversion into steel in the case of shears which are first cast from gray or white iron and then converted into steel.
A further beneficial result-arising from'my improved construction is a narrow cutting-edge which willnot become bevelled and dull so soon as the wider ones, and which, when dulled, can be much more readily put in order, particularly by persons not wholly familiar with theoperatiou of grinding such articles.
Figure 1 is a perspective view of a pair of opened shears, embodying my improvement, and
Figure 2 is a section of the same when closed, taken through theline y y, fig. 1.
1n the drawing- A A are the blades ,of shears, of any usual or desired form or size, and may be made in any ordinary manner, although, in practice, I prefer to'cast them from common gray or white iron, and then to steelif'y them by some of the many well-known processes.
B is a rivet, which secures the parts together, and also serves as a fulcrum.
a is a groove, cavity, or recess, upon the inner face of each blade.
7 This cavity or recess I make in form substantially as shown in the drawings, but both form and depth maybe varied as experience or circumstances may dictate; however. I prefer that its outline shall be such that the cutting-edge which lies adjacent thereto, as indicated a. a?, shall be of uniform width throughout-,in order that the abrasion of ,parts which occurs during use may wear away this edge as evenly as possible; I also prefer that the depth of the groove shall be such as to give as nearly a uniform thickness as possible to the blade, as it is less liable towarp duringcooling, and in cases where it is steelified after shaping, itis much easier to do the work perfectly than it is when the blade is of varying thickness.
Having now described my invention,
\ What I claim as new, and desire to secure by Letters.
Patent, is-
The construction of the blades of shears, with a groove, cavity, or recess, as and for the purpose set forth.
BYRON W. NICHOLS.
Witnesses A. O. ToNNER, A. J. UNDERHILL.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US96339A true US96339A (en) | 1869-11-02 |
Family
ID=2165806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US96339D Expired - Lifetime US96339A (en) | Improvement in shears |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US96339A (en) |
-
0
- US US96339D patent/US96339A/en not_active Expired - Lifetime
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