US1772925A - Combination tool - Google Patents

Description

' Aug. 12, 1930. L. WERNl-CKE COMBINATION TOOL Filed Aug. 24, 1925 2 Sheet t 1 V JN EN A TTOR J Filed Aug. 24, ,25 2 Sheets-Sheet 2 ATTORNEY? ATEZS LOUIS WERNICKE, or wnsr BEND, Wisconsin COMBINATION TOOL Application filed August 24, 1925. Serial No. 52,030.

This invention relates to certain new and useful improvements in tools, and refers more particularly to a tool especially designed for use by builders.

At the present time builders find it necessary to have a number of separate tools that are expensive and necessitate the carrying of an unusually large tool kit, which is objectionable. Hence, with the above and other objections in mind, my invention has for one of its objects, to provide a combination tool whereby a spirit level, protractor, try square, straight edge and other similar tools are combined into one unitary device.

A further object of this invention is to provide a combination tool of the class described in which a plate member is rotatably mounted in a base member, said plate member and base member having cooperating graduations delineated thereon, and said plate member carrying a pair of spirit levels arranged to be visible from either side.

1V ith the above and other objects in View, which will appear as the description pro ceeds, my invention resides in the novel construction, combination and arrangement of parts substantially as hereinafter described, and more particularly defined by the appended claim, it being understood that such changes in the precise embodiment of the herein disclosed invention may be made as come within the scope of the claim.

In the accompanying drawings, I have illustrated one complete example of the physical embodiment of my invention, constructed according to the best mode I have so far devised for the practical application of the principles thereof, and in which:

Fig. 1 is a plan view of an improved tool embodying my invention;

Fig. 2 is a sectional view taken through Fig. 1 on line 22; and I Fig. 3 is a fragmentary sectional View taken through Fig. 1 on the plane of line Referring more particularly to the accompanying drawings in which like numerals designate like parts throughout the several views:

The numeral 5 designates the base member of my improved tool, and has an enlarged central circular opening 6 therein, in which is rotatably secured, by means to be later described, a circular plate 7 having a central opening 24. The base member 5 has one edge thereof formed on a straight line and struck laterally to provide a flange 8rforming a. straight edge.

The plate 7 has a member 9 secured thereto, to one face thereof, and the opposed ends of said member coincide with the adjacent edges of said plate to engage the base member. The diametrically opposed knurled set screws 12 have threaded engagement with the base 5, and are provided with washers or flanges 13 which extend beyond the adjacent peripheral portion of the base 5 and engage the adjacent portions of the plate 7 on the opposite side to the member 9 whereby said plate will be rotatably secured in opening 6. With this construction, the flanges or washers 13 maybe brought into binding engagement with the member 5 and thus restrain the plate 7 from rotation within the opening 6, but a loosening of the screws 12 will permit the ready rotation of said plate to the desired position.

As illustrated in Fig. 1, the base member 5 has graduations 14 delineated on one face thereof at this inner peripheral edge and which delineations begin with zero substantially perpendicular with respect to the straight edge 8 and graduate to either side thereof up to 90 representing the degrees of one fourth a circle.

The plate 7' is also provided with graduations 15 on its outer peripheral edge beginning with zero substantially perpendicular with respect to the edge on member 9 fastened thereto and graduated to either side thereof to any desired pitch, indicating the elevation in inches and fractions thereof for each foot on the base line, within the limits of the graduation 15.

The member 9 and plate 7 have secured thereto, as shown in Figs. 1 and 2 a spirit level 17 which is provided with a projecting housing 18 having a central aperture as at 19 to permit sighting of the spirit level from either side of the tool. A similar spirit level 17 is secured to the upper opposite portion of the member 7 as shown in Fig. 1. \Vhen it is desired to use the spirit level 17, the zero of the plate 7 is alined with the zero of the base member, when the spirit level 17 will be in true parallel relation with the straight edge 8. When it is desired to ascertain the vertical plumb of work, the Zero of the plate 7 is brought in alinement with one of the 90 10 degrees of the base members to bring the spirit levels in true right-angular relations with respect to the straight edge 8.

For the purpose of attaching a steel rule member 20 to the plate 7 the member 9 is bent outwardly, and carries two binding screws 23 for removably securing the rule between their inner ends and the plate as illustrated in Figs. 1 and 2.

hat I claim as my invention is 20 A tool, comprising a base member having a e straight edge and central circular opening, the peripheral edge adjacent said opening having graduations delineated thereon extending equally in both directions from a 25 pointbisected by a radius of said opening perpendicular to said straight edge, said delineations representing degrees, a circular plate rotatably mounted in said opening and carrying a straight edge member, said plate being 1 formed with a relatively large central opening, there being coacting graduations delineated on said plate and extending equally in both directions from a radius of said plate a perpendicula te a d siililightedge member said plate graduations representing elevation in inches per foot on a base line, and a pair of opposed spirit levels carried by said plate and projecting into said plate opening and being visible from both sides of the tool. t In testimony whereof, I afiix my signature.

LOUIS WERNIOKE.

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