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UNITED STATES PATENT OFFICE.
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WILLIAM ULSES, OF LOS ANGELES, CALIFORNIA.
SCRAPlNG-PLANE.
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SPECIFICATION forming part of Letters Patent No. 744,587, dated March 22, 1904.
Application filed October 29, 1903. Serial No. 179,070. (No model.)
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To all whom it may concern:
Be it known that I, WILLIAM ULSES, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented new and useful Improvements in Scraping-Planes, of which the following is a specification.
My invention relates to a plane for finishing surfaces made nearly smooth by the ordinary cutting-planes; and the object thereof is to provide a tool by means of which planed surfaces may be readily finished and with less danger of roughing the surface than if an ordinary scraper were used.
I accomplish this object by the scraping-planes described herein and illustrated in the accompanying drawings, in which —
Figure 1 is a side elevation, with a portion in longitudinal central section taken on the line 1 1 of Fig. 2, of my scraping-plane. Fig. 2 is a view of the sole of my plane.
In the drawings, A is the stock, having a throat B for the reception of the plane-iron C and the binding-wedge D, which secures the plane-iron in the throat, binding it against abutments A’ on the sides of the throat. These abutments are shown in dotted lines in Fig. 1, the inner dotted line representing the top line of the abutments and the outer line representing the bottom line of the abutments. The tops of these abutments project forwardly of the bottoms, so that the top of the plane-iron is inclined forwardly, as shown in Fig. 1, when the wedge and iron are in place. I have found by practical test that an inclination of five-sixteenths of an inch in a stock of two inches in height produces very satisfactory results. The plane-iron is constructed, preferably, of a thin piece of tempered steel having the lower edges C’ thereof sharpened, as shown in Fig. 1, or otherwise formed into a scraping-surface. The front side of the binding-wedge forms the segment of a circle, and when the scraper-iron is secured in the stock it is bent into circular shape, as shown in Fig. 2, which causes the central portion thereof, by reason of the forward inclination of the top, to project through the stock a greater distance than the edges. With a scraper-iron two inches wide I have found that one-sixteenth of an inch produces a very satisfactory curvature and that a plane thus constructed will take out all the tool-marks and perfectly finish the surface. The curvature of the plane-iron caused by the wedge when in place in the stock prevents it from chattering. It will be observed that by this construction the central portion of the iron does its scraping in advance of the side portions, and thereby the danger of catching under the grain of the wood is lessened over that of using a scraper with a straight edge. It will also be observed that when the plane-iron is out of the stock its cutting edge is a perfect straight line and that it can thus be readily sharpened and that when put in place in the stock the edges follow at the rear of the center and are a little elevated above the center, thus preventing any marring of the surface upon which the plane is being used, the edges being preferably placed in the same plane as the sole of the stock.
Having described my invention, what I claim as new, and desire to secure by Letters Patent, is —
1. A scraping-plane comprising a stock having a throat with abutments on the sides and in the front portion thereof; a plane-iron composed of thin resilient metal and having its lower edges formed into a scraping-surface; a rigid binding-wedge of a length substantially equal to the height of the stock having a circular face adapted to pass into said throat back of the scraper-iron and bind said iron in said stock in a forwardly-projecting curved form.
2. A scraping-plane comprising a stock having a throat with abutments on the sides and in the front portion thereof, the tops of said abutments projecting forwardly of the bottom thereof; a plane-iron composed of thin resilient metal and having its lower edge formed into a scraping-surface; a rigid binding-wedge having a circular face adapted to pass into said throat back of the scraper-iron and bind said iron in place in the stock and to produce in said iron a forwardly-projecting curve.
ln witness that I claim the foregoing I have hereunto subscribed my name this 22d day of October, 1903.
WILLIAM ULSES.
Witnesses:
G. E. HARPHAM,
MARGARETÉ C. NICHOLSON.
