THE M A R A B U PANTOGRAPH ( = "StochSchnabel" in German Slang ) Model 1 ******************************************************************************** Text of the MARABU flyer: " The PANTOGRAPH serves to the technical engineer, the designer, the painter, the map-maker, and similiar professions as an indispensible assistend for copying, enlarging, and reducing in size: designs, drawing plans, pictures etc. D I R E C T I O N S F O R T H E U S E O F T H E P A N T O G R A P H ------------------------------------------------------------------------------- The draftsman press or screws the peg A at the side of the drawing-board. The appliance is then prepared for double enlargement. If a fourfold enlargement is desired the two middle-screws have to be placed into their respective holes 4. Then the plan to be enlarged is placed under the tracer B which is held by the left hand while the right hand guides the pencile-holder. In this way an enlarged copy is produced. If a plan shall be reduced, the tracer has to be placed into the side-piece C and the pencil-holder into the side-pice B. The procedure is opposite to that used for enlarging. If you want a copy of the same size as the original you exchange the peg A with the tracer B. " I hold the receipt in the box: I bought this wooden tool in »KaDeWE« warehouse, Berlin(West) for 4 DM on 11th November 1956. I used it to reduce wing-profiles of famous model airgliders to build smaller models. I want reductions between 1 and 1/2 - but the instruction was only valid for reductions (enlargements) less (bigger) than 1/2 -???- By "trial-and-error" I found out how to do it: I made the fix-point at B (and made a BASE not to damage the original plans). The pen comes in A (I had to make the lever-hole bigger) and the tracer I sat in C. The following connections could be choosen ... for Reduction 0.8 ----------------- Connections at 2_1/4 ===>> 1 + 0.25 = 1.25 ; 1 / 1.25 = 0.8 or Reduction 0.66 ----------------- Connections at 2_1/2 ===>> 1 + 0.5 = 1.5 ; 1 / 1.5 = 0.66 or Reduction 0.57 ----------------- Connections at 2_3/4 ===>> 1 + 0.75 = 1.75 ; 1 / 1.75 = 0.57 For Enlargements 1.25 or 1.5 or 1.75 ----------------------------------------- Exchange places of tracer & pen in A & C Have a look at a "Professional" NESTLER-2490 Back to the ENGINEERING TOOLS Main Page impressum: ******************************************************************************** © C.HAMANN http://public.BHT-Berlin.de/hamann 08/11/09 |