US442426A - Pliers - Google Patents
Pliers Download PDFInfo
- Publication number
- US442426A US442426A US442426DA US442426A US 442426 A US442426 A US 442426A US 442426D A US442426D A US 442426DA US 442426 A US442426 A US 442426A
- Authority
- US
- United States
- Prior art keywords
- jaws
- pliers
- plates
- cutting
- levers
- 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
- 210000001847 Jaw Anatomy 0.000 description 36
- 239000002184 metal Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 229910001315 Tool steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000037250 Clearance Effects 0.000 description 2
- 210000002832 Shoulder Anatomy 0.000 description 2
- 230000035512 clearance Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 230000003247 decreasing Effects 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
- B25B7/02—Jaws
Definitions
- This invention relates to pliers, and most particularly to that class which are provided with wire-cutting edges.
- the object of the in ention is to provide a tool which can be cast and readily put together without welding or forging.
- the gripping-jaws and cutting-edges are drop-forged and of the best tool-steel, being secured to the ends of the levers by screws, so as to be easily replaced at a small cost when broken.
- Figure l- is a perspective view of a pair of cutting-pliers embodying my invention.
- Fig. 2 is a perspective view showing the parts detached and arranged in their relative position.
- Fig. 3 is a perspec tive view of the detachable steel plate.
- Fig. at is a side view of the front portion of the pliers, the jaws being closed and the cuttingedges being on the obverse side.
- Fig. 5 is a reverse view of that portion of the pliers seen in Fig. 4.
- a and B represent two levers, which are pivoted together at (J in the usual manner.
- D and D are two drop-forged plates of best tool-steel. These plates are properly tempered and have suitable openings cl for the insertion of screws or other fastening devices ffor securing them to the ends or jaws a and Z) of the respective levers.
- the rear portion E of the plates is cut away to form the cutting-edge e and give clearance for the wire between the jaws.
- the opposing sides of the jaws a and b are parallel for a short distance and approach near their outer ends, and the plates D and D are of corresponding shape on their outer sides, so as to lie close to the jaws.
- the lever A is composed of two parts, the jaw a and the handle G.
- the jaw a is provided with tang a, which is inserted through opening I) in the lever B.
- the inner end of the handle G is bifurcated and spans the tang a, to which it is secured by rivets g.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
Description
(No Model.)
J. DONNELLY.
PLIERS.
No. 442,426. Patented Dec. 9, 1890.
Fay. J
UNITED STATES JOHN DONNELLY, OF
PATENT OFFICE.
KRANFORD, CONNECTICUT.
PLIERS.
SPECIFICATION forming part of Letters Patent No. 12,426, dated December 9, 1890.
Application filed March 21, 1890. Serial No. 344,777. (No model.)
To aZZ 1071 0122 it may concern:
Be it known that 1, JOHN DONNELLY, a subject of the Queen of Great Britain, but have declared my intention of becoming a citizen of the United States, residing at Branford, in the county of New Haven and State of Connecticut, have invented certain new and use ful Improvements in Pliers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.
This invention relates to pliers, and most particularly to that class which are provided with wire-cutting edges.
The object of the in ention is to provide a tool which can be cast and readily put together without welding or forging. The gripping-jaws and cutting-edges are drop-forged and of the best tool-steel, being secured to the ends of the levers by screws, so as to be easily replaced at a small cost when broken.
In the drawings, Figure l-is a perspective view of a pair of cutting-pliers embodying my invention. Fig. 2 is a perspective view showing the parts detached and arranged in their relative position. Fig. 3 is a perspec tive view of the detachable steel plate. Fig. at is a side view of the front portion of the pliers, the jaws being closed and the cuttingedges being on the obverse side. Fig. 5 is a reverse view of that portion of the pliers seen in Fig. 4.
A and B represent two levers, which are pivoted together at (J in the usual manner.
D and D are two drop-forged plates of best tool-steel. These plates are properly tempered and have suitable openings cl for the insertion of screws or other fastening devices ffor securing them to the ends or jaws a and Z) of the respective levers. The rear portion E of the plates is cut away to form the cutting-edge e and give clearance for the wire between the jaws. The opposing sides of the jaws a and b are parallel for a short distance and approach near their outer ends, and the plates D and D are of corresponding shape on their outer sides, so as to lie close to the jaws. By this construction of the jaws and the plates a pressure on the said plates, as when gripping a wire or other article, will have a tendency to press the plates in or toward the pivot C of the levers, thereby relieving the fastenings f from lateral strain, as the inner ends of the plates abut against shoulders at the inner ends of the said jaws.
The lever A is composed of two parts, the jaw a and the handle G. The jaw a is provided with tang a, which is inserted through opening I) in the lever B. 'The inner end of the handle G is bifurcated and spans the tang a, to which it is secured by rivets g. By having lever A made in two parts the levers A and B can be cast and quickly put to gether.
Having thus described my invention, what I claim, and desire to secure by Letters Patent, 1s
1. The hereinbefore shown and described cutting-pliers, composed of the cast-metal 1e" ver B, having jaw b and the opening I), the cast-metal jaw a, having the tang a, the latter being thrust through. the opening I), the cast-metal handle A, having its end bifurcated and adapted to receive the tang a, to which it is firmly riveted, the jaws to and. I), having their opposing faces extending parallel for a short distance and converging near the outer ends of the jaws, and the temperedsteel plates D D, fitted to and secured by screws to the jaws a and b and having side cutting-edges e, substantially as and for the purpose described.
2. In cuttingpliers, the combination, with a pair of levers pivoted together and having the opposing faces of their jaws approximately parallel for a short distance and approaching near the outer ends of the jaws, of tempered-steel plates fitted to and secured by screws to the said jaws, the said plates having side cutting-edges e and having their outer portions decreasing in thickness to correspond with the inclination of the said jaws, substantially as set forth.
In testimony whereof I atiix my signature in presence of two witnesses.
JOI-IN DONNELLY.
\Vitnesses:
JAMES OBRIEN, MICHAEL F. OBRIEN.
Publications (1)
Publication Number | Publication Date |
---|---|
US442426A true US442426A (en) | 1890-12-09 |
Family
ID=2511321
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US442426D Expired - Lifetime US442426A (en) | Pliers |
Country Status (1)
Country | Link |
---|---|
US (1) | US442426A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2706987A (en) * | 1952-09-12 | 1955-04-26 | Harold F Bramstedt | Insert for surgical needle clamp |
US3047947A (en) * | 1959-11-25 | 1962-08-07 | Bell Telephone Labor Inc | Wire cutting pliers |
US4669341A (en) * | 1985-07-03 | 1987-06-02 | Small Thomas J | Extraction device |
US5537727A (en) * | 1994-09-28 | 1996-07-23 | Itt Corporation | Release tool for quick connector with integral release member |
US20130032769A1 (en) * | 2011-08-01 | 2013-02-07 | Kittell Jason W | Embedded element pulling apparatus |
-
0
- US US442426D patent/US442426A/en not_active Expired - Lifetime
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2706987A (en) * | 1952-09-12 | 1955-04-26 | Harold F Bramstedt | Insert for surgical needle clamp |
US3047947A (en) * | 1959-11-25 | 1962-08-07 | Bell Telephone Labor Inc | Wire cutting pliers |
US4669341A (en) * | 1985-07-03 | 1987-06-02 | Small Thomas J | Extraction device |
US5537727A (en) * | 1994-09-28 | 1996-07-23 | Itt Corporation | Release tool for quick connector with integral release member |
US20130032769A1 (en) * | 2011-08-01 | 2013-02-07 | Kittell Jason W | Embedded element pulling apparatus |
US9839999B2 (en) * | 2011-08-01 | 2017-12-12 | Happiness Tool Co., Inc. | Embedded element pulling apparatus |
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