US 1674485 A
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Description (OCR text may contain errors)
L. P. SMITH GLASS PLIERS OR NIPPERS June 19, 1928.
Filed Nov. 2, 1926 Patented June 19, 1928 UNITED STATES PATENT OFFICE.
GLASS PLIERS OR NIPPERS.
Application filed November 2, 1926. Serial No. 145,833.
My invention relates to glass pliers or nippers, and has among its objects to provide such a plier with one jaw, for instance the top jaw, having a straight or flat face to afford a relatively long fiat bearing surface on the glass to be broken, and a second jaw having its inner face formed on a curve, or otherwise, so as to have at its outer end or extremity a contact-point or edge lying substantially opposite the outer terminal end of the top or fiat faced jaw and with its inner face receding from that point rearwardly.
- the result that when the jaws are closed under pressure the lass will break along the made line-cut with increased facility and accuracy.
To the accomplishment of the foregoing and such other objects as may hereinafter appear, the invention consists in the features hereinafter particularly described and then sought to be clearly defined by the claims, reference being had to the accompanying drawing forming a part hereof, and in which Figure 1 is a plan top View of the pliers;
Figure 2 is a side View;
Figure 3 is an end view, looking from the front;
Figure 4 is a side View showing the relationship of the inner faces of the two jaws to the glass to be cut, the handles being broken away.
In the drawing, the numerals 1 and 2 designate the two jaws of a pair of pliers or nippers and 3 and 4 the handles of the respective jaws, the two being pivotally connected together by a rivet or pivot pin 5. The jaw 1 is formed with a straight flat inner face extending fronna to b, and the jaw 2 has an inner forwardly and downwardly inclined face extending from c to 61, thus forming a space or reces between the two jaws increasing in depth from front to rear, the lower wall of the recess being substantially straight or in a plane parallel with the pivotal axis of the pliers and the upper wall inclined thereto. The outer terminal end of the jaw having the inner inclined face lies substantially opposite the outer terminal end of the jaw having the inner flat face, as illustrated in Figs. 2 and 4 of the drawing, and the lower edge of the outer end of jaw 2 affords or constitutes substantially a knife edge hearing or contact-point 6 to bear against one side of a glass 7 say at the point of the line-cut made in the glass to define its line of severance, and the flat face of the opposing jaw affords a fiat bearing surface, substantially parallel therewith, for the other side of the glass to be out, so that by having a flat bearing surface f0r one side of the glass and a relatively contracted bearing surface or fulcrum for the other side, the flat surface extending rearwardly from the point of opposite contact or engagement of the two jaws with the glass, the glass will be more easily and accurately broken or severed along the line-cut when pressure through the handles causes the jaws to grip the glass.
The pliers will preferably be forged from tool steel'with hardened jaws.
The preferred details of the inventive features have been illustrated and described, but it will be obvious to those skilled in the art in the light of the description given that changes may be made in the specific details and essential features of the invention retained.
Having described my invention, and set forth its merits, what I claim is 1. The glass-pliers comprising oppositely disposed jaws, one jaw having an inner face defining substantially a horizontal plane to form a relatively long bearing surface parallel to one side of the glass, and the other jaw an inner face defining a plane substantially oblique to the horizontal and having at its outer-end a relatively contracted contact-bearing for the contiguous face of the glass.
2. The glass-pliers comprising oppositely disposed pivotally mounted jaws, one jaw having an inner face defining substantially a horizontal plane, and the other jaw an inner face defining substantially a plane oblique to the horizontal and having a bearing-fulcrum at its outer end for the glass.
In testimony whereof I afiix my signature.
LANDON P. SMITH.