US2007421A - Puzzle - Google Patents

Description

Patented July 9, 1935 UNI-TE f STATES PATENT OFFICE PUZZLE y y HilaryV Coughlin, Belfast, vMaine Application Jamiary is, 1934, serial No. 707,206

s onims. (o1.` i6-37') Vaid to the worker in folding the blank sheet to finished form and to further provide a puzzle which isnot only difcult to work but will prove to be highly entertaining as well as instructive to the worker and one which is very inexpensive to manufacture.

Referring to the accompanying drawing, which is made a part hereof and on which similar reference characters indicate similar parts,

Figure 1 is a plan view of the blank sheet,

Figure 2 is a plan View of the blank after several steps of folding,

Figure 3 is a further plan view of the blank as the folding progresses.

Figure 4 is a side elevation of the blank after being folded in the direction as indicated by the arrows on Figure 3.

Figure 5 is a side elevation of the blank after being folded in the direction as indicated by the arrows on Figure 4.

Figure 6 is a side elevation showing the corners folded down.

Figure 7 is a plan View of the folded blank spread apart,

Figure 8 is a perspective view of Figure 7, and

Figure 9 is a plan of the finished puzzle.

In the drawing reference character Ill indicates a square blank formed of any suitable material, preferably paper or cellophane. The blank I0 is rst creased on the diagonals II and I2 and then unfolded. The corners of the blank are each folded over along the lines I3 and I4, respectively, with the extreme ends of the diagonals touching the center I5 of the blank, thus forming a smaller square having corners I6, I1, I8 and I9.

Each of the corners just referred to are then folded under along the lines 29, 2I, 22 and 23 respectively to contact the -center I5.

The Vtriangular portions having apices 2li, 25, 26 and 2 thus formed are each pulled upwardly being folded along a portion of the diagonals II and I2 and then flattened so that the point 28 contacts the point 29 and the point 3l contacts the point SIB to assume the position shown in Figure 4.

The portions of edge 2S are then pulled do-wnwardly in the direction of the arrows indicated on Figure 4 to occupy the position indicated by the dotted lines. Likewise on the opposite side, the portions of the edge 22 are moved to occupy similar positions adjacent the portions of the edge 20. After the completion of this operatio151 the blank is now shaped as shown in Figure Each of the upper corners on both sides are then folded downward to occupy the position as indicated in Figure 6. The blank is now ready for the final step. Each side of the blank on opposite sides of the center point I5 is grasped between the fingers and pulled in the direction indicated by the arrows on Figure 7, to nat position as shown in Figure 9, thus forming the finished puzzle.

The mode of operation to form or fashion the puzzle will no doubt be highly interesting but will prove instructive and entertaining, not only to children, but to adults as well.

It is evident that such a puzzle will be eX- ceedingly inexpensive to manufacture, yet at the same time is so novel and unique as to strike a persons fancy that it will be in great demand for many and Varied purposes.

It. will be obvious to those skilled in the art that various changes may be made in my device without departing from the spirit of the invention and therefore I dol not limit myself to what is shown in the drawing and described in the specification, but only as indicated by the appended claims.

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

1. The method of forming a puzzle from a square blank having diagonal crease lines comprising folding the corners of said blank to the center to form a smaller square, then folding the corners of said smaller square under in like manner to form a still smaller square, raising the inner corners opposite the outer corners of said last formed square and pressing the portions so formed together, folding each of the top corners to contact its lowermost corner thus producing a rectangular form, then folding each upper corner over toits opposite corner to produce a triangular form and pulling each side of the resulting form in opposite direction and then flattening the same to form the finished article, substantially as set forth.

2. The method of forming a puzzle from a square blank comprising folding the blank to form diagonal crease lines, flattening the blank to its original form, then folding the corners of said blank to contact the center to form a smaller square, folding the corners of said smaller blank under in like manner to form a still smaller square, raising the inner corners opposite the outer corners of said last formed square and pressing the portions so formed together, folding each of the top corners in such a manner as to contact its lowermost corner, thus producing a rectangular form, folding each upper corner over to its corresponding opposite corner to produce a triangular form and pulling each side of the last mentioned form in opposite directions at the same time flattening the `same to form the 1inished puzzle, substantially as set forth.

3, The method of forming a puzzle from a square blank comprising folding the blank to form diagonal crease lines, iiattening the blank to its original form, then folding the corners of said blank over to contact its center to form a smaller square, folding the corners of the smaller square under in like manner to form a still smaller square composed of four square portions, raising the inner corners of the square portions at the same time folding along the diagonals thereof which are the outer extremities of the diagonal crease lines and pressing the portions so formed together to form squares composed of pairs of superposed sosceles triangles, folding the top corners of the isosceles triangles to contact opposite corners to produce a rectangular form composed of pairs of smaller superposed square portions, folding each of the outer corners oflsaid square portions over to its corresponding opposite corner to form a triangular form composed of pairs of smaller superposed isosceles triangles and then pulling each side of the triangular form in opposite directions at the same time attening the same to form the finished puzzle, substantially as set forth.

HILARY COUGHLIN.

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