Lotter

Original Lotter Ellypso 1 ellipsograph


REFERENCES / NOTES

 

Chr. Lotter is especially known for his parallel compasses, the first version DRGM 78651 invented in 1897, see Der Mechaniker vol. 19., page 320-321, 1897. An improved version DRGM 333756 was patented in 1908 (see also 1911 DRP 238295) and in 1951 DRP 899420. For the latter 2 see Depatisnet.