Drafting template

• US 4,026,030 A
• Filed: 12/29/1975
• Issued: 05/31/1977
• Est. Priority Date: 12/29/1975
• Status: Expired due to Term

• Current Assignee: Deceased, Paul H. Kuever, Surviving Spouse, Hazel J. Kuever
• Original Assignee: Deceased, Paul H. Kuever, Surviving Spouse, Hazel J. Kuever
• Inventors: Kuever, surviving spouse, Hazel J., Kuever, deceased, Paul H.
• Primary Examiner(s): Aegerter, Richard E.
• Application Number:
  US05/644,909
• Time in Patent Office: 519 Days
• Field of Search: 33/174 B, 33/103, 33/108, 33/41 R, 33/174 G, 33/80, 35/38, 35/37, 35/36
• US Class Current: 33/565
• CPC Class Codes: B43L 13/205 geometrical figures

Abstract

Adjustable drafting template characterized by relatively slideable members which may be positioned to form openings for drawing figures with two parallel sides of different widths and lengths having ends of various shapes; also, circles, chordal portions thereof, squares, portions thereof, and equilateral triangles.

Claims

1. A drafting template, comprising:

(a) a flat relatively thin integral body of uniform thickness,

(b) said body having a plurality of spaced stacked elongated cut-outs therethrough, forming openings with surrounding edges, providing guides for moving a pencil or the like in contact therewith, for forming a desired line on a drawing upon which a bottom face of the body is adapted to lie in contact therewith,

(c) each opening including parallel edges of differing spacings therebetween,

(d) a first straight edge joining the parallel edges of each opening at one end thereof and perpendicular thereto,

(e) a second semi-circular edge joining the parallel edges of each opening at the other end thereof,

(f) a slideable member moveable across the top face of the body in a direction parallel to said parallel edges and between ends of the openings,

(g) said slideable member having a third straight edge at one side thereof crossing all of the openings perpendicular to their parallel edges,

(h) said slideable member also having a plurality of cut-outs at an opposite side thereof forming fourth edges, each forming a symmetrical shape within a 180°

arc, the ends of which arc join the parallel edges, forming ends of the opening with which each is associated.

2. A template in accordance with claim 1 wherein said fourth edges are two sides of an isosceles triangle and cooperate with the straight edges at one end of the openings to thereby form (1) isosceles triangles or (2) figures with parallel sides, a flat base at one end and an arrow head shape at the other end.

3. A template in accordance with claim 1 wherein said fourth edges are semi-circular and cooperate with the semi-circular edges at said other end of the openings to form (1) circular openings or (2) elongated figures with parallel sides and semi-circular ends.

4. A template in accordance with claim 1 having two sets of openings of the shape defined and a slideable member for each set, said fourth edges on one slideable member being semi-circular and adapted to cooperate with the semi-circular edges at one end of the openings of one set to form circular openings or elongated figures with parallel sides and semi-circular ends, said fourth edges on the other slideable member being two sides of an isosceles triangle which cooperate with the straight edges at one end of the openings of the set to thereby form isosceles triangles or figures with parallel sides, a flat base at one end and an arrowhead shape at the other end.

5. A template in accordance with claim 1 wherein said body is rectangular and provided with guides in the edges thereof which are parallel with the slots, the slideable member having ends adapted to slideably engage the guides, and means for releasably locking the slideable member to the body at a desired slideable position therealong.

6. A template in accordance with claim 5 wherein the locking means comprises a rotatable cam engageable with the body at a position thereon between adjacent openings.

7. A template in accordance with claim 6 including manual means, such as a knob, for rotating the cam.

8. A template in accordance with claim 1 including apertures extending through the body in positions in alignment with the centerline of each opening for aligning the openings with a reference line on a drawing.

9. A drafting template in accordance with claim 1 including scales on the body for indicating the position of edges of the slideable member relative thereto and a length of an opening.

10. A drafting template in accordance with claim 1 including indicia on the body for indicating the position of the slideable member for drawing squares.

11. A drafting template in accordance with claim 1 wherein said slideable member is provided with bevels to dispose said third edge and said fourth edges in the plane of the top face of the body.

12. A drafting template comprising;

(a) a flat relatively thin integral sheet of material of uniform thickness forming a body,

(b) said body having sets of spaced stacked elongated cut-outs therethrough, forming openings with surrounding edges providing guides for moving a pencil or the like in contact therewith, for forming a desired line on a drawing upon which a bottom face of the body is adapted to lie in contact therewith,

(c) each opening in a set including parallel edges of different spacings therebetween,

(d) a first straight edge joining the parallel edges of each opening at one end thereof and perpendicular thereto,

(e) a second semi-circular edge joining the parallel edges of each opening at the other end thereof,

(f) a first slideable member movable across the top face of one set of openings in a direction parallel to said parallel edges and between ends of the openings of the set,

(g) said first slideable member having a third straight edge at one side thereof crossing the openings of the set perpendicular to their parallel edges,

(h) said first slideable member also having a plurality of semicircular fourth edges at another side thereof joining the parallel edges,

(i) a second slideable member moveable across the top face of another set of openings in a direction parallel to said parallel edges and between ends of the openings of the set, and having a like third straight edge crossing the openings of said another set perpendicular to their parallel edges,

(j) said second slideable member having a plurality of edges which are sides of an isosceles triangle and cooperate with straight edges at one end of the openings,

(k) the construction and arrangement being such that the first slideable member may form, at one side thereof, squares or rectangles of various sizes and, at its other side, circles or elongated figures with parallel sides and semi-circular ends,

(l) the construction and arrangement also being such that the second slideable member may form, at one side thereof, isosceles triangles or figures with parallel sides, a flat base at one end, and an arrowhead shape at the other end, and form, at the other side thereof, semi-circles or elongated figures with parallel sides, a flat base at one end and a semi-circular shape at the other end.