Pair of measuring compasses

A measuring compass comprising a pair of first and second legs (10;

• 110 and 20;
• 120) pivotally connected at first ends thereof, a mounting member (40) pivotally connected to the second end of said first leg (10;
• 110) and having an aperture (43) therethrough, an articulated member (53) supported on said mounting member (40) for rotation about an axis (H) disposed generally within a plane defined by said legs, a rod-like centering element (51) secured to and projecting from said articulated member (53) and including a spike (52) on the free end thereof having a pointed end spaced radially outwardly from said axis (H), said centering element being supported for angular movement with said articulated member (53) about said axis (H) between a first position (S1) and a second position (S2) angularly offset 180.degree. from said first position, means for releasably retaining said centering element (51) in said first position (S1) and in said second position (S2) a carrying member (21) pivotally connected to the second end of said second leg (20, 120), a marking device mounted on said carrying element (21) including at least one marking element having a marking end, a measuring member (60) releasably secured at one of its ends to said carrying member (21) and having graduations (65) therealong, said measuring member (60) extending through said aperture (43), means (46) on said mounting member (40) for releasably securing said measuring member (60) in fixed position relative thereto, said indicating means comprising a first indicator (44) secured to said mounting member (40) for cooperating with said graduations to indicate the linear distance between said pointed end and said marking end when said centering element (51) is in its first position (S1) and a second indicator (45) for cooperating with said graduations when said centering element (51) to indicate the linear distance between said pointed end and said marking end when said centering element (51) is in its second position (S2).

A measuring compass comprising a pair of first and second legs (10;

• 110 and 20;
• 120) pivotally connected at first ends thereof, a measuring and mounting element (40) connected to the second end of first leg (10;
• 110), a supporting element (21) connected to the second end of said second leg (20;
• 120), a centering element (51) mounted on said measuring and mounting element (40) and having a pointed end, a marking member (70) carried by said supporting element (21) and having a marking end, an elongated measuring element (60) secured to said supporting element (21) and having graduations (65) therealong, means for releasably securing said measuring element (60) to said measuring and mounting element (40) and indicating means mounted on said measuring and mounting element (40) for cooperating with said graduations (65) on said measuring element (60) to indicate the distance between said pointed end and said marking end and further characterized by means supporting said centering element (51) on said mounting and measuring means for rotation about an axis (H) between first and second positions wherein said pointed end is disposed within a plane defined by said axis and said marking end, said pointed end in its first position being disposed to the same side of said axis (H) as said marking end, said pointed end in said second position being disposed at the opposite side of said axis (H) from said marking end, and said indicating means comprises means for indicating the distance between said pointed end and said marking end in said first position and in said second position.