US1124118A - Pliers. - Google Patents

Description

E. H. BLWELL.

PLIERS.

APPLICATION FILED DEG.2,1913.

Patented Jan. 5, 1915.

amventoz attuned EDGAR H. ELWELL, 0F DAWSON, YUKON, CANADA PLIERS.

Specification of Letters Patent.

Patented J an. 5, 1915.

Application filed December 2, 1913. Serial No. 804,250.

To all whom it may concern:

Be it known that I, EDGAR H. ELWELL, a citizen of the United States of America, residing at Dawson, in the Provinceof Yukon and Dominion of Canada, have invented new and useful Improvementsin Pliers, of which the following is a specification.

The present invention relates to pliers.

One of the objects of the invention is the construction of a pair of pliers with a ,removable knife member that embodies both a longitudinal and a transverse cutting edge, whereby a fuse leading to a charge of gun powder or dynamite may be simultaneously cut transversely and slitted longitudinally to expose the powder of the fuse without permitting the said powder escaping from the fuse.

Another object of the invention is the provision in a pliers of this class, of means \fvhereby the cap may be crimped upon the use.

A still further object of the invention is the provision of a pliers which may be employed for splitting and cutting the ends of an electric conductor Wire to provide the said end with branch wires, as well as for removing the insulation from thewires.

With the above recited objects in view and others which will appear as the nature of the invention is more fully understood, the improvement resides in the construction, combination and arrangement of parts set forth in the following specification and falling within the scope of the appended claims.

For the purpose of illustration the accompanying drawing discloses a simple and satisfactory reduction of the improvement to practise, and in which drawing:

Figure 1 is a perspective view of a pair of pliers constructed in accordance with the present invention, Fig. 2 is a central longitudinal sectional view taken through the jaws of the pliers, Fig. 3 is a detail perspective view of one of the jaws, showing the knife and knife retaining plate or member removed from the jaw, and Fig. 4 .is a perspective view of the second j'aw.

The pliers A comprise the usualtpan' of ivomd members, each of which including a andle and a jaw which is offset from its handle beyond the pivotal connection between the said members, and the handles are normally swung away from each other through the medium of a flat curved spring which has one of its ends secured to one of the handles and its opposite end engaging with the second handle.

One of the handles has its rounded end provided with a rounded member 1, which s employed in the usual manner for forcmg the powder within the casing of the fuse to provide a pocket or depression for the reception of the cap after it has been crimped upon the square end of the fuse.

'The jaws, which are designated by the numerals 2 and 3 respectively, are normally spaced away from each other through the medium of the spring above mentioned, and each of the jaws has its inner face of a substantially similar construction. The inner faces of said jaws are flat for a portion of their length and each of said fiat faces is formed with a substantially semi-cylindrical transversely arrangedchannel or depression 4 which, when the jaws are brought together, provide a circular openin'g'between the jaws. The sides of the jaws are projected in a line with semi-cylindrical openings 4:, and these portions of the jaws are wider than at any other cross section of the said jaws. One of the enlargements, upon one side of the jaw 2 is formed by a removable plate or cap 5' which is formed with a semi-cylindrical opening 5 that is adapted to form a continuation of the semicylindrical depression of the said jaw. The top of the member 5, is flat and its sides are reduced from the semicylindrical end'5 of the said member, the said ends bein provided with openings 5 which are a apted to register with vsimilar openings 5 in the straight side of the jaw 2, the openings 5 being threaded and retaining elements, in the nature of screws 5 pass through the registering openings 5" and 5 and engage with the threads of the openings 5. The semi-cylindrical opening 5 of the jaw 2 has the lower wall or central portion provided ormed with a dovetailed slot or channel 13 which extends the entire width of the said jaw. The slot B is adapted. to receive a dove-tailed portion 7 provided upon a knife member 8. The member 8 has one of its ends formed with a fiat head 8 which is of a semi-circular formation and its rounded edge sharpened. The head 8 may be received within a slot or depressionh provided upon the flat side of the jaw 2, as illustrated in Fig. 3 of the drawing but such an arrangement is not absolutely necessary, as the reduced ends of the member 5? will give sufficiently when engaged by the heads of the screws 5 to spring the said ends tightly against the fiat face of the jaw and the central and reinforced portion of the said member 5.

The second jaw 3 is provided with. a recess 10, which'extends longitudinally of the said jaw, and which is adapted-to serve as a pocket for the sharpened edge of the head 8 which barely enters the said recess. The longitudinal portion of theknife 8 is rounded from its ;outer end toward the head 8',

' as clearly illustrated in Figs. 1 and 3 of the drawing, and to accommodate the portion of the knife at the juncture of the head 8, the channel or depression 4' of the jaw 3 is provided with a slot 10 which enters the longitudinal depression or pocket 10.

The jaws adjacent their ends have their inner faces provided with curved depressions, the walls of which being serrated or otherwise provided with teeth 6, the purpose of which will presently be set forth.

When the device is employed in connection with a fuse the said fuse is inserted within the cylindrical depression 4 of the jaw 3, and the handles are forced together to bring the inner faces of the jaws in con- 7 tact, and as a consequence, the head 8' will sever the fuse, while the knife 7 will split the fuse. The ends of the jaws which are provided with the depressions having the teeth 6 are now employed for sustaining an explosive cap, which after being inserted over the square cut of the fuse, is crimped by the said teeth 6, and the splitting .of the said. end of the fuse makes it convenient to touch a match to one of the threads of the fuse which ignites the powder in the fuse, and the said ignited powder explodes the capwhich is turn explodes the charge of plyltilamite or gunpowder to which the fuse ea s.

When the device is employed for splitting the ends of an electric wire conductor, the said conductor is inserted within the re cessed or depressed portions 4 of the jaw 33, and the handles swung together to bring the knife into engagement with the fuse, the said engagement cutting the fuse transversely as well as slittin the same longitudinally, and the said sit lits the conductor and forms the same wlth two branch wires to which additional connecting wires may be attached; I

From the above description, taken in com insane nection with the accompanying drawings,

the simplicity of the device as well as the advantages thereof will, it is thought, be perfectly apparent to those skilled in the art to which such inventions appertain without further detailed description.

Having thus described the invention, what I claim is:

1. Pliers for the purpose set forth comprising a pair of pivoted members including spring pressed handles and a jaw provided for each of the handles, each of the jaws having a flat inner face, the jaws on the said inner face being provided with alining semi-circular depressions and'having their sides enlarged to provide extensions which surround the depressions, one of the said enlargements being removable, the depression provided upon the jaw with the removable enlargement having a slot, a knifemember adapted to be arranged within the slot, said knife member including a semicircular head which is arranged transversely of the knife proper and which is adapted to abut against the flat side of the jaw, means for securing the removable member to the jaw, and the said removable member adapted to contact with the outer face of the rounded head of the knife. I

' 2. Pliers for the purpose set forth, comprising a pair of pivoted members which in clude spring pressed handles and a jaw formed upon each of the. handles, each of said jaws having an inner fiat face which is recessed transversely to provide a semi-circular depression, the aws having their sides provided with enlargements which are also depressed, one of the said enlargements being removable, thejaw provided with the removable enlargement having the wall of its depression centrally formed with a lon gitudinally extending dove-tailed slot and its fiat side recessed, the said recessed portion communicating with both the depres sion and dove-tailedslot', a knife member having a'dove-tailed end adapted to be inserted within the dove-tailed slot, the said member being provided with a transverselyarranged head which is adapted to be received within the depression in the side of the jaw, and means com risingremovable elements for securing t e removable enlargement to the jaw.

3. Pliers comprising a pair of pivoted members including spring pressed handles and a jaw formed upon each of the handles, each of said jaws having an inner flat face which is recessed to provide a transverse semi-circular depression, the opposite faces of the jaws having extensions :which surround their depressions to provide extensions for the said depressions, the said depressions adapted to register when the jaws are brou ht together, each of the jaws be ingprovided with longitudinally extending slots, eknife member secured longitudinelly of and centrally within one of the depressions, aknife heed having a curved edge and secured to one end of the knife member transversely thereof, the registering depression of the other jaw adapted to receive the lmife member and .its head when the jews are closed, and the reduced ends of the jaws having areuate' depressions which are toothed. In testimony whereof I affix my signature in presence of two witnesses.

EDGAR H. ELWELL. Witnesses:

' HENRY E. PETER,

HARROLD N. BUTLER.

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