Before computer technology made my trade obsolete, I worked with these.
Anyone who didn't work with these care to guess what it is?
Did a little penmanship at the bottom of a drawing or too?
Ink pen from a drafting set for making mechanical drawings. Uses open bottle of ink.
Antique and soon to be obsolete handtool...
That is a bench tool,not meant to be carted around .It's historical significance will never be diminished. YMMV
Technical term, it is a ruling pen and can be adjusted for variable line widths.
I still have my Dietzgen Universal set from high school. It's in tact and in good shape, even after all these years.
Today it's point and click. I doubt the skills we were taught are very useful now. I can still vividly remember my junior
high school teacher looking at our work and no matter how "perfect" it was, there was always "room for improvement".
He had a sign near the clock that read, "Notice Clock Watchers - Time Will Pass, You May Not!".
Did you ever use a double line ruling pen?It was used in mapping for road casings. spent many an hour using them for highway maps that were FREE in service stations in the good old days.
PS I have one some where in my things.
Yup, that's a "ruling pen," just another traditional hand-tool that took quite a while to learn to use correctly. But after thirty years, it got so I could spin round corners in my sleep. Some guys cheated and used Rapidograph "technical pens," the nibs of which came in fixed sizes...
... but the larger sized Rapidographs tended to blob and were almost useless. Both types became obsolete when the desktop computer arrived on the scene.
This is the double ruling pen Bob McDonald mentioned:
It worked pretty much the same as a single: You loaded the ink with a brush and then tuned the little knobs until the two lines were of equal width according to the Mk-1 eyeball. Then, you drew the lines you needed. The trick was to load as much ink as needed to complete the line, but not so much that the stupid thing would blob and ruin the artwork. Took a steady hand. No Rapidograph pen in the world could rule a double line, so everyone kept at least one old-fashioned, double ruling pen in the toolbox.
Okay, here's another old tool I used back in the day. Who knows what it's for?