US923567A - Seam-ripper. - Google Patents

Description

I G. W. NEWTON.

SEAM RIPPBR, APPLIOATION FILED JUNE 8, 190a.

Patented June 1, 1909.

I I awuwtoz CT VIZ/1 2 012 Mk/ messes attozwu o Specification of Letters Patent.

Application filed June 8, 1908.

CHARLES WILLARD NEWTON, OF KANSAS CITY, KANSAS:

SEAM-RIPIPER.

Patented June 1, 1909.

Serial No. 437,415.

To all whom it may concern:

Be it known that I, CrrARLns WILLARD NEWTON, a citizen of the United States of America, residing at Kansas City, in the county of lVy-andotte and State of Kansas, have invented certain new and useful Im provements in Seam-Rippers; and I do doclare 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 has relation to new and useful improvements in seam rippers, and has for its object to provide a simple and inexpensive device of this character through the use of which. all liability of cut-ting the cloth during the operation of ripping seams is obviated.

Vi ith the foregoing and other objects in view, that will readily appear as the nature of the invention is better understood, the invention consists of certain novel features of construction, combination and arrangement of parts illustrated in the drawings, and particularly pointed out in the appended claims.

In the accompanying drawings: Figure 1 is a perspective view of a seam ripper, constructed in accordance with the invention, the cutting blade partly open. central longitudinal sectional view and Fig. 3 is a cross sectional view, out in the line 33 of Fig. 2.

In the embodiment illustrated, and in accordance with the invention, the seam ripper comprises two members, namely, a guard and cutting blade or knife 1 and 2, respectively. The guard is made substantially in the form of a shuttle being of approximately cylindrical form in cross section at its inner end and beveled upon its under surface and at opposite sides at its outer end to provide a rounded tapering outer end portion 3. The guard is also provided with a central longitudinal slot iwhich extends entirely through the width of the guard from the inner end thereof to the inner end of said rounded tapering portion and through a portion of the tapering portion of the guard, leaving an inclined wall 4 which extends from the inner end of the rounded tapering portion of the guard to the extreme outer end and upper surface thereof. The cutting blade is preferably formed of a flat piece of steel or other suitable metal and is pivoted intermediate its ends, as at 5, in the slot and at the inner end of the guard. Said blade is beveled upon Fig. is a its outer edge at its pivoted end to form a straight cutting edge 6 and at said end and at its lower edge from a point somewhat beyond the inner end of the wall 4: to the extreme outer end and edge of the blade. Said cutting blade is also notched out near its free end, as at 7, to provide hook or catch for use in pulling out the thread.

In practice, the knife is placed in proper position for ripping and pushed forwardly by means of the thumb and forefinger under the thread to be cut and owing to the construc tion of the guard, liability of cutting the cloth is entirely obviated.

Having thus described and ascertained the nature of my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a seam ripper, an approximately cylindrical guard having a rounded tapering end portion and a central longitudinal slot which extends through the entire width of the guard and from the opposite end thereof to the inner end of the rounded tapering portion and also through a portion of the latter, leaving a wall at the tapering portion of the guard, and a cutting blade pivoted in the slot and at the inner end of the guard and provided with an outer cutting edge, the wall at the tapering end of the guard forming a stop to limit inward swinging movement of the cutting blade.

2. A seam ripper comprising an approxi mately cylindrical guard beveled upon its under surface and at opposite sides at one end to provide a rounded tapering outer end portion, said guard being slotted longitudinally through its entire width from its inner end to a point at or near the inner end of said tapering portion and through a portion of the latter, leaving an inclined wall between the inner end of said tapering portion and the extreme outer end and outer surface of the guard, and a cutting blade pivoted in the slot and at the inner end of the guard, the pivote d end of the blade having an outer cutting edge and beveled at its inner edge from a point beyond the inner end of the rounded portion of the guard to its extreme outer end and upper edge.

I11 testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

CHARLES WILLARD NEl/VT ON.

Vi itnesses E. S. HERIDER, A. B. ANDERSON.

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