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SPIRIT LEVEL and STRAIGHT EDGE. No. 393539, Patented Nov. 27, 1888

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SPIRIT LEVEL and STRAIGHT EDGE. No. 393539, Patented Nov. 27, 1888 (No Model.) 2. Sheets-Sheet 1. J. W. W. CLARK, SPIRIT LEVEL AND STRAIGHT EDGE. No. 393,539, Patented Nov. 27, 1888, s s (No Model.) .- J. W. W. CLARK, 2. Sheets-Sheet 2. SPIRIT LEVEL AND STRAIGHT EDGE, No. 393,539, Patented Nov. 27, 1888. 3. 7%z-esses: - Z 7z Zeze (or else. 6. -6-4-6, /e/2- Z176 6/27 A. PETERS. Photo-thographer, washington, D.C. UNITED STATES PATENT OFFICE. JOHN W. W. CLAR R, OF R IV ERS IDE, ILL IN OIS. SPRT - LEVEL AND STRA GHT EDGE SPECIFICATION forming part of Tetters Patent No. 393,539, date l November 27, 1888. Application filed July 30, 1888. Serial No. 281,420. (No model.) To all whon, it may concern: D D'are right-angle clips or brackets having Be it known that I, JoHN W. W. CLARK, a threaded holes in which the adjusting and citizen of the United States, residing at River clamping screws FF are mounted. The side, in the county of Cook and State of Illi brackets D D'are attached to the straight-edge 55 nois, have invented a new and useful Improve A, one near each end of the level and above ment in Combined Spirit-Level and Straight the same, by screws d. Edge, of which the foilowing is a specification. The adjusting-screws F Fare provided with Myinvention relates to combined spirit-level caps or plates ff' at their ends to bear against and straight-edge for use by carpenters, ma-. the upper edge or face of the level B. The O Sons, and others. Screws F F turn in the caps fif', the caps be The object of my invention is to provide a ing secured on the ends of the screws by suit cheap, simple, and efficient means whereby an able collars or washers or by upsetting or riv ordinary carpenter's spirit-level may be read eting the ends of the screws. The screws FF ily and quickly combined with a straight-edge. have thumb pieces or handles.ff for turning the Same. The under face or surface of the andMy novel invention combinations consists ofin partsthe novel and devices caps or socket-pieces fif' may preferably be herein shown and described, and more particu finely corrugated to give better holding-sur larly pointed out in the claims. face against the level B. In the accompanying drawings, forming part The straight edge A is provided with a han of the specification, and in which similar let die, grasp-slot, or hole, A, near its middle ters of reference indicate like parts, Figure 1 edge and just above the bubble or middle point is a side view of a device embodying my in of the level, so that the level may be read from vention. Fig. 2 is a top or plan view. Fig. either side of the straight-edge A. The slot 3 is an enlarged side view, showing the level A serves both as a handle for the straight-edge and its means of attachment to the straight and to throw better light upon the reading 25 edge. Fig. 4 is a top or plan view of the same. point of the level. Fig. 5 is a detail front view of one of the clips The bottom and top faces of the level are and its adjusting and clamping screw. Fig. 6 clamped between the Supporting-bracket Cand is a side or edge view of the same. Fig. 7 is the screws FF, which are mounted in the up. 8 a detail view of the middle bracket or support per brackets, D D'. By turning the screws F upon which the level rests, and Fig. 8 is a sec IF", the level may be quickly adjusted to par tion on line S S of Fig. 7. (Figs. 5, 6, 7, and S allelism with the straight-edge. By this means are enlarged.) a carpenter or millwright can quickly attach In said drawings, A represents a straight his ordinary spirit-level to his straight-edge. 35 edge, the same being of the ordinary construc The straight-edgeitselfis required to bestraight tion. It is preferably or usually made of a only on one edge, a. The level, being attached light well-seasoned pine board and about six to the straight-edge, is carried about with it as teen feet in length. one piece, and does not require to be held on B represents an ordinary spirit-icvel of any or separately put on every time it is used. 90 suitable or usual construction. My combined straight-edge and level will C is a bracket having a curved projecting work with perfect accuracy, whether the level lip or flange, c, upon which the level B rests. itself be true or not, as the thumb-screws F. F. The curvature of the flange c permits the level adjust the bubble of the level to the straight to rock thereon, as may be necessary to adjust lower edge, a, of the straight-edge. In case 95 it parallel to the bottom line, a, of the straight. either the level itself gets out of true or the 45 edge A. The upper surface of this curved straight-edge warps or shrinks so as to affect flange c is, or should be, finely corrugated, as the trueness of the level, it may be quickly and indicated at c', to better hold or grip the level accurately readjusted. B. The supporting-bracket C is secured to the The brackets C, D, and D are preferably OO straight-edge A. at one side thereof, near the made of cast metal. The inner faces of these middle, by screws c'. brackets, which fit against the straight-edge, 393, 539 should be finely corrugated, as indicated in the said level being clamped between one of said drawings, so as to give a better and firmer brackets and said clamp-screws, substantially grip. as specified. I claim 3. The combination, with straight-edge A, of 20. 1. The combination, with straight-edge A, of level B, brackets C D D, and adjustable clamp spirit-level B, supporting-bracket C, having screws FF, furnished with cap-pieces ff', sub curved flange c, and upper brackets, D D, pro stantially as specified. vided with thumb-screws F F, said brackets 4. The combination, with straight-edge A, being secured to one side of the straight-edge, having handle-hole A", of spirit-level B, bracket 25 O and the level being clamped between said C, having curved flange c, and brackets D D', bracket Cand thumb-screws FF, substantially having thumb-screws FF, furnished with caps as specified. if f', substantially as specified. 2. The combination, with straight-edge A, JOHN W. W. CLARK, of level B and brackets C, D, and D, secured Witnesses: to said straight-edge, two of said brackets be A. H. STONEBRAKER, ing furnished with adjustable clamp-screws, WM. HACKMAN. .
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