Cone-shaped mystery - Usage, manufacturer, place to find?

[Mech-for-i]

I recall reading some very very old ( like early 1900's ) manual and mention of such tools for Drafting / Technical drawing qhich require a uniform line width and precise placement of line and whatever

[LughLamfada]

On 31/01/2021 at 7:47 AM, Rawrik said:

Fabri00: Do you have any idea where can I get those except antiques and old bookshops?
Sadly that mines are rusted to hell.

There is a set of five of these nibs currently up on eBay. US seller though

 

 

[dipper]

Here are some photos of my small collection of pens under the "Uno Pen" brand name in the UK.

Dates of manufacture are unknown, though the chronological sequence is clear from the changing materials used.

Will start here with the oldest item, and see how far through the collection I can go in later posts.

 

A bakelite box. "UNO" PEN DELUXE MODEL 2 (meaning nib width 2?) On the underside of the box it says MADE IN ENGLAND:

 

With a pen, attached to a black handle, inside the box (ebonite?). All the extra storage spaces are sadly empty:

 

A close-up shot of the business end of the pen:

 

There are no springs in this early version of the Uno Pen. The wire pin, thicker shaft, and knurled top are all one piece that slides up and down freely in the ink delivery tube. (Just like a Rotring Isograph!)

Ink is added into the pen with an eyedropper through the big window visible in the photograph.

 

The pen writes well, giving the same results as a modern technical pen. The Uno Pen is more comfortable to use because of the cranked and adjustable handle joint.

 

But what did users do when they wanted to lay the pen down? Some sort of desk-stand must have been used.

[dipper]

In fact, the UnoPen desk stand is already shown in the photographs in my previous post.

 

Here is one end of the Bakelit storage box:

 

And now with the pen cradled in the notch in the box:

 

That's a neat design solution.

[dipper]

Is anyone interested in seeing photos of the later changes in the designs of these Uno brand "funnel pens"?