US2140098A - Bevel - Google Patents

Description

Dec. 13, 1938. F. A, wElsKoF 2,140,098.

- BEVEL Fil-ed sept. 1, 1957 f@ @www torneys Patented Dec. 13, 1938 UNITED STATES PATENT OFFICE 1 Claim.

The present invention relates to measuring tools, appliances, and instruments, and has reference to a so-called adjustable bevel having incorporated therein certain structural refinements and improvements calculated to enable it to be more satisfactorily'employed to the advantage of printers, carpenters, draftsmen, cabinet makers, and others engaged as lay-cut men and satisfactorily usable to find any and all angles, whereby to especially adapt it to take any angle from a printers lay-out and transfer that angle to a saw trimmer table without moving the table or gauge.

Briefly, the preferred concept is characterized by a pair of principal pivotally connected component parts one of which is in the nature of a sheath and the other adapted to fold thereinto, the two parts having associated therewith a hand regulated stay link.

My primary aim is to generally improve upon bevel-squares and equivalent measuring instruments by providing a unique collapsible arrangement with the features constructed to nest together in jack-knife fashion so as to promote compactness and convenience for a tool box and similar usage.

Other features and advantages will become more readily apparent from the description and drawing.

In the drawing:

Figure l is an elevational view of a bevel or tool constructed in accordance with the principles of the present inventive conception showing the same used as a square, that is, with the parts in full open position.

Figure 2 is a view of Figure l observing the same in a direction from right to left.

Figure 3 is a top plan View of Figure 1.

Figure 4 is a horizontal section on the line -l of Figure l.

That part constituting the so-called sheath is denoted by the numeral 5 and comprises a pair of spaced parallel duplicate metal or equivalent strips 5. At their outer or upper ends in Figure l, the parts 5 are riveted together as at l, there being a spacing washer located therebetween as indicated at 8 to provide the desired parallel assemblage. Either one or both of said strips may be provided with an elongated guide and retention slot 9.

The companion or complemental part is denoted by the numeral iii and this comprises a straight edged arm Ii having a right angularly disposed n or rib I2 extending from end to end. The outer end of said rib is out away to provide a clearance portion as at I3 to nest against the washer 8 when the structure is folded or closed. The opposite end of the rib is pivoted as at I4 between the lower ends of the side members 6 of the sheath unit 5. The stay link is denoted by the numeral I5 and is pivoted as at I5 to the intermediate portion of the rib I2. The opposite end is provided with a stud I I slidable in the slot 9 and equipped with a thumb nut I 8 and a spring lock washer I9. 'Ihe lock washer I 9 is of the 10 concave convex type and interposed between the thumb nut and the adjacent bearing surface of the complemental side member 6. This is brought out to advantage in Figure 4 of the drawing. This simple lock or retention means makes it l5 possible to adjust the parts 5 and I0 into positions at direct right angles or into various intervening angles ranging from obtuse to acute. Consequently, the device may be used essentially as a bevel-square, or its features may be adjusted into varying angular relationships for laying off different and varying types of jobs. Since the device is aptly tted for use by printers, carpenters, draftsmen, and other lay-out men and mechanics, it is obvious that' the range of utility is extensive and that it is unnecessary to attempt to describe all such activities.

It is to be observed that by pivoting the stay link I5 to one side of the rib I2 and slidably joining it to one of the side members 5 of the sheath, it nests itself nicely between the side members of the sheath and lies alongside of the rib I2 when the latter is folded completely into said sheath. Moreover, the structure is characterized by requisite compactness and convenience, stability 35 and efliciency for precision usage. These factors will be unquestionably clear to persons familiar with the handling of instruments in this general category.

It is thought that the description taken in connection with the drawing will enable-a clear understanding of the invention tov be had. Therefore, a more lengthy description is thought unnecessary.

While the preferred embodiment of the invention has been shown and described, it is to be understood that minor changes coming within the eld of invention claimed may be resorted to if desired.

I claim:

A foldable bevel of the class described comprising a sheath embodying a pair of spaced parallel substantially duplicate side members, a spacing and assembling washer fastened between corresponding ends of said member, one of said 55 tion and terminating in spaced relation adjacent Y the washer, an arm abutting the opposite ends of said members, said arm being provided with a right angularly disposed flange forming a rib, the rib extending from the normal inner end of the arm lengthwise and terminating inwardly of the outer end of the arm, said terminal end being of curved formation to provide clearance coaction with said washer when the rib is folded between the members of said sheath, said inner end of the flange being pivoted between the last named ends of said members, a stay link pivoted at one end to the intermediate portion of said rib, ,the opposite end of said stay link being provided with a threaded stud extending through the slot, and a thumb nut on said stud cooperating with said slotted member in the manner and for the purposes described.

FREDERICK A. WEISKOFF.

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