US555108A

US555108A - Charles morrill

Info

Publication number: US555108A
Authority: US
Publication date: 1896-02-25
Anticipated expiration: 1913-02-25

Description

(No Mdel.)

4C. MORRIL L.

CUTTING PLIBRS.

N0. 555,108. Patented Feb'. 25, 1896.

Fig l.

ANDREW EGRAHAM. PHQ'BUWUAWASHIHFIDMEC.

llNiTnn STATES CIL\RLES MORRILII,

OF NET YORK, N. Y.

CUTTING-PLIERS.

SPECIFICATION forming part of Letters Patent No. 555,108, dated February 25, 1896.

Application filed March 4, 1895.

To @ZZ wh'om/ 272 71u03/ concern:

Be it known that I, CHARLES Moneum, a citizen of the United States of America, and a resident of the city, county, and State of New York, have invented a new and useful Improvement in Cutting-Pliers, of which the following is a specification.

)Iy invention relates to cuttin g-pliers adapted for cutting wire or ribbon sheet metal, all of which will be fully described hereinafter.

)Iy invention consists of certain mechanical combinations forming a complete and novel cutting-pliers, all of which will be pointed out in the claims and fully described hereinafter.

In the drawings, Figure l represents a side elevation of the cutting-pliers. Fig. 2 represents a vertical section taken on the line Y Y of Fig. 3, the latter of which is a plan W'ew of Fig. l. Fig. a is a front elevation, in which view is shown the interchangeable cuttingblades and the manner in which they are held in position. Fig. 5 is a transverse vertical section taken on line X X of Fig. l. In this view is shown the construction of the fulcrumpin of the lever-handle.

Similar numerals refer to similar parts throughout the drawings, in which- The numeral 6 represents the upper vertically-moving cuttingjaw having integral therewith two depending` hangers '7. The lower ends thereof are fulcrumed to the leverhandle 7', the latter of which is provided with an eccentric enlargement 8, a portion of the outer contour of which works in frictional contact with a planed surface 0 integral with the stock of the lower vertically-cutting jaw, l0, the latter of which is held in position by and between the hangers 7 and is operated upon by the eccentric enlargement S of the lever-handle 7', the latter of which is fulcrumed to the hangers 7 by means of the fulcrum-pin ll, which is composed of a screw l2 adapted to fit a corresponding sleeve 13, the latter of which forms, as it does, the fulcrumed bearing. The interchangeable cutting-blades I3 are held in their respective cutting-jaws by means of screws. The upper vertically-movable cuttin g-j aw is tapped and adapted to receive the adjusting-screw l-i, which is encircled by the helical spring 15,

Serial No. 540,404'. (No model.)

the latter of which is housed in the cylindrical opening 16.

A very important feature of the construction of the pliers is that of having a projecting tongue 17 integral with the stock of the lower vertically-moving jaw and adapted to engage with a corresponding groove 18 made in the stock of the upper vertically-moving cutting-j aw. It will be obvious that this last feature will prevent the cutting-edges of the pliers from being sprung out of their horizontal alignment by any undue strain brought to bear upon them near their outer ends.

It will be obvious that when the handles of the pliers are compressed the eccentric enlargement of the handle will force the lower cutting-jaw upward in a vertical line, and by means of the fulcrum force the upper cuttingjaw down correspondingly. Both jaws will move with the same speed, distance, and exert the same power upon the wire or metal being cut. It will also be obvious that whenever the interchangeable cutting-blades are to be ground their width will be reduced, thus preventing their cutting-edges from approaching each other sufficiently to sever the wire or metal operated upon. To obviate this dificulty I have provided the regulating device, which consists of the adjusting or regulating screw 14, which enters the screwtap of the upper cutting-jaw and is encircled by a helical spring l5, which is held in position by means of the cylindrical bore made in the stool: of the upper and lower cutting-jaws. Said adjusting-screw maybe adjusted to suit the occasion, thus allowing the edges of the cutting-blades to assume their relative position one with the other. It will still further be obvious that when the pressure upon the handles is removed the retraction of the helical spring will force the jaws apart and to their normal position.

Having thus described my invention, what I claim as new, and desire to secure byLetters Patent, is-

l. In a cutting-pliers, the combination of vertically-moving jaws, the verticallyarranged tongue integral with the stock of the lower jaw and guided in a groove of the upper jaw, the adjusting-screw passing through the stock of the upper jaw and the coiled IOO spring encircling said screw; the screw serving as a center guide for said spring.

2. The combination consisting of the upper` vertically-moving j aw and its hangers the lever-handle the eccentric enlargement thereon the screw-pin and sleeve forming a fulcruln for said lever-handle, the lower cutting-jaw lO the latter adapted to operate between said hangers, the interchangeable cutting-blades, the adjusting or regulating screw passing through the stock of the upper cutting-jaw,

the helical spring encircling said zuiljusting-V In a cutting-pliers, the combination ofV the upper vertically-moving jaw and its hangers, the lever-handle, the eccentric enlargement thereon7 the screw-pin and sleeve for1ning a fulcruni for said lever-handle, the lower 2o cutting-jaw adapted to operate between said hangers, the interchangeable cutting-blades, the adjusting-screw passing through the stock of the upper cutting-jaw and the helical spring encircling said adjusting-screw.

In testimony that l claim the foregoing as my invention l have signed my name, in presence of two witnesses, this lstrday of March, i805.

CHAS. MRRILL.

Yfitnesses T. A. ANDnRsoX, O. N. STEIN.