US466099A

US466099A - Folding square

Info

Publication number: US466099A
Authority: US
Publication date: 1891-12-29
Anticipated expiration: 1908-12-29

Description

(No Model.)

H.. F. HEGEMAN.

FOLDING SQUARE 190.466,099. Patented 1300.29, 1891.

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UNITED STATES( PATENT OEEIcE.

HENRY F. IIEGEMAN, OF MILWAUKEE, VISOON SIN.

FOLDING SQUARE.

SPECIFICATION formingpart of Letters Patent No. 466,099, dated December 29, 1891.

Application tiled June 8,1891. Serial No. 395,447. (No model.)

To all whom it may concern.-

I 3e it known that I, HENRY F. HEGEMAN, a citizen of the United States, and a resident of Mllwaukee, in the county of Milwaukee, and in the State of Wisconsin,have invented certain new and useful Improvements in Squares; and I do hereby declare that the following is a full, clear, and exact description thereof.

My invention relates to squares and it consists in certain peculiarities of construction and arrangement of parts to be hereinafter described, and pointed out in the appended claims.

In the drawings, Figure l represents a side elevation of a portion of Vmy square, partly broken away for the purpose of better illustration; Fig. 2, another side elevation of the device, showing the graduations thereon; Fig. 3, a similar view showing one arm of the square folded on the other; Fig. 4, a section on the line 4 4 of Fig. 1; Fig. 5, any edge View of the vertical arm of my square, and Fig. 6 a section on the line G 6 of Fig. 3; v

Referring to the drawings, A B represent the arms of aright-angled square constructed according to my invention, and projecting from the inner side of the arm A at a suitable distance from the lower end thereof is an ear a. A recess b is formed in the lower inner corner of said arm A adjacent to the ear a and has passed transversely therethrough a pin c for the purpose to be hereinafter described.

Extending along the entire length of the inner end of the arm B is a groove CZ, and pivoted within the upper portion of this groove by means of a pin e is the ear a. In the lower portion of the groove CZ is pivoted, as by pin f, one end of a hook C, the other end of which is designed to engage with the pin c in the recess b of the square-arm A, the latter' end of the hook. being preferably notched for engagement with the countersunk head of screw g, said screw holding the hook C iirmly in place and guarding against any liability of dropping out of its own weight.

Assuming that the parts are in the position shown in Fig. l and it is desired to fold my Square, the screw g is run out a certain distance to clear the hook O and the latter disengaged from the pin c in the recess b of the square-arm A, and the square-arms are swung upon their pivot and brought together, as shown in Fig. 3. When desired to return the parts to their normal position, the squarearms are unfolded, the hook C engaged with the pin c, and the screw g run down iush with the edge of the adjacent arm. l

Although I have shown and described the hook C held in place by the screw g, it is obvious that this screw may be dispensed with, as the hook can be made to be heldin place by frictional contact against lthe opposing surfaces, or some other means may be'employed for the same purpose.

The advantage of my square liesin the fact that by being enabled to fold the same I economize space, and am thus enabled to place said square entirely within a tool-box with the rest of the tools, and in case it rains none of the tools will get rusty, whilewith the square now in use, when placed in a toolbox, one arm thereof generally projects out of the top of said box, and in case it rains the rain runs down the projecting arm of the square among the other tools and rusts them, as well as the square, and hence it will be seen that I have constructed a' simple and neat device that overcomes these objections, aswell as one that may be more conveniently carried about than the ordinary non-jointed right-angled square.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

l. A right-angled square having one arm thereof provided with a groove at its inner end, a hook pivoted in the lower end of the groove, the other arm having a recess in the lower inner corner,a pin passed transversely through the recess for engagement with said hook, and an ear projecting from the inner side of the latter arm and pivoted Within the groove of the first, substantially as set forth.

2. A right-angled square having an arm thereof provided with a groove at its inner end, a hook pivoted in the lower end of the groove, the other arm having a recess in the lower inner eorner,a pin passed transversely through the recess Afor engagement with said` have hereunto set; my hand, at Milwaukee, in the county ol' Milwaukee and State of Wisto Cousin, in the presence of two witnesses.

HENRY F. HEGEMAN.

Witnesses:

H. G. UNDERWOOD, JOHN E. WILEs.