Categories
Updates

Mimeograph Revival Forum: Better Communications Now

Hi mimeo fans!

Mimeograph Revival has a new feature that is being rolled out over the next few weeks – our own forum!

Now, we can have a place to gather and to gather questions and answers, to search for what others are doing with their old machines, to find out where to get and how to use supplies, and to build community and a knowledgebase right here on the site!

The forum will be available to browse, in keeping with my desire to make information available, but will require registration to post, to avoid spam and stupidity.

The code of conduct is simple: behave nicely, be kind to your fellow mimeographers, and let’s make a great place to share ideas, tips, and pics of our latest projects.

The forum is here: https://forum.mimeographrevival.com.

Categories
How-to Trial and Error

Homemade-Stencil Advances, Paper Suggestion, and Spirit Duplicator Fluid Alternative

Stencils suitable for making at home

The creator of the YouTube channel @oldtypewritersandcalculators recently posted a video about making home-scale stencils that can be used with a stylus and file plate, much in the manner of the Japanese file-plate method (see Tomoko Kanzaki’s work, using this method, here and here). These stencils can presumably also be used on a Gestetner or AB Dick-type mimeograph if they have an appropriate header attached in order to secure the stencil to the drum.

Ingredients: paraffin wax, carnauba wax, and “vaseline oil,” which, in the US, is known as mineral oil. Additionally, you need thin, transparent, sturdy paper. Here it looks a bit like tissue or tracing paper, and the stated weight is 20gr/m2. You might have good luck with washi/Yoshino paper, though (see next stencil experiment, below)

Supplies: Heat source, scale, metal tray, paintbrush, and a metal can.

Method: Weigh out 3 parts paraffin, 3 parts mineral oil or “vaseline oil”, and 1 part carnauba wax, into the can. Melt over low heat. Heat the metal tray also on low to facilitate the waxing of the paper without the wax hardening too fast. Use the paintbrush to spread a thin layer of the melted mixture onto the paper (or conversely, onto the tray itself, setting the paper into the wax), and set aside each sheet to harden.

Stencils suitable for making in your garage or secret lab

Recently Mimeomania (facebook group) member Sam Davisson was able to tinker around with a recipe for stencil coating available from a 1979 patent.

Sam’s process, comments, and photos follow:

Homemade Impact Stencils!!!

After some trial and error, I happened upon a coating recipe that worked amazing. This is from a 1979 Gestetner patent, US 4,180,621. This is the recipe found in Example 1, Main Coating.

This is based on nitrocellulose plastic, which has several plasticizers and lubricants mixed with it, along with solvents, allowing everything to be dissolved together, have paper dipped in it, and hug to dry.
******************

Recipe, as in the patent:
(Parts by weight)

Nitrocellulose – 10
Coconut oil – 4.2
Diethylene Glycol – 2.8
Butyl Stearate – 16.2
Oleic Acid – 81.7
Microlith Blue 4GA (a blue dye) – 3.8 — Didn’t include in mine
Nonoxol DCP (antioxidant and bactericide) — Didn’t include in mine
Ethyl Acetate – 46
Methylated Spirit (denatured alcohol) – 139
******************

I’ll be working with this recipe to see what else can be substituted and left out, to make it easier to recreate for others. Below is my best guesses as to what each ingredient does, in 3 essential categories (base, plasticizer/lubricant/distender/elasticizer, and solvent):

Nitrocellulose – base plastic – this is what photographic film used to be made from
Coconut oil – plasticizer
dithylene glycol – plasticizer
butyl stearate – plasticizer
Oleic acid – plasticizer
Microlith Blue – blue dye, used for legibility when stencilizing
Nonoxol DCP – preservative for oils so they won’t oxidize, also a bactericide
Ethly Acetate – allows nitrocellulose and oils to be soluble in alcohol
Methylated spirit – primary solvent, AKA denatured alcohol
******************
!!WARNING!!

If you plan to recreate this, know that there are a lot of volatile chemicals involved – my house still stinks from mixing this this morning. ALSO, nitrocellulose is EXTREMELY flammable – that’s why they stopped making film with it. It is shipped wet. It must be dried before mixing into solution.”

The collected ingredients:

Prior to mixing:

Jar of coating solution on left. Coating pan on bottom. Yoshino paper on cardboard drip tray, top.

Stencil hung to dry:

The stencil after being typed and written upon. See * below for details about the dark tone on the background and for more info on how to achieve quality imprints on stencils.

And the results!

Kevin asked, “Sam, there seems to be a light gray cast to the background on these prints. Do you know what is causing that? Is ink seeping through the stencil?”

Sam said, “Its not the ink, I needed a backing sheet that contrasted, so I spray painted a sheet of paper black but didn’t let it dry enough, so it rubbed off on the stencil (as seen in the picture holding it to the light) and transferred to the paper when printing. If you use black construction paper or something as a backing, this shouldn’t happen. I also need to add a colorant to the coating (titanium white, when used with a black backing) for contrast of stenciled letters.”

Kevin commented, “I see. It is good to know that the ink was not seeping through. From the factory, the stencils came with a sheet of carbon paper between the stencil paper and the backer sheet. It is a waxy carbon paper, not solvent carbon, and it offsets onto the stencil a bit when you type, so that you can clearly read what you have typed. It was referred to as a ‚cushion sheet’ by some manufacturers, because the softer, waxy surface of the carbon paper allows the type to cut a bit deeper into the stencil. Putting an ordinary sheet of wax carbon paper that you buy at Staples, carbon side up, behind the stencil paper should achieve the same effect. On blue stencils, this waxy carbon sheet is white, in order to create a good contrast.”

The paper used for the stencil is the classic Yoshino, available here. The nitrocellulose is from here.

Mimeograph Paper Option

Kevin, who is very actively using mimeograph and spirit duplicator machines, is always on the lookout for supplies available today that can replace the no-longer-produced versions of the past. He recently found that the Crayola brand lightweight construction paper that’s available in Canada makes a nice replacement for AB Dick Mimeotone paper. That brand, if it’s available wherever you, dear reader, happen to be, you might see if it’s similar in quality.

He says, “It has the same weight and texture and absorbs mimeo ink very well.  I think it is groundwood paper, which is what Mimeotone was.  I found that the grain on the construction paper is short, and normal paper (mimeo or any other copy paper) has a long grain, but it doesn’t seem to make a huge difference.  It feeds on the machines fine as long as you don‘t run it too fast (and Riso ink needs to be run slow anyway), and it folds without breaking at the folds when run through the paper folder.  (AB Dick Mimeotone cracks on the folds when folded).”

Alternative Spirit-Duplicator Fluid

Kevin also reports on his experiments with developing a less noxious fluid for use in spirit duplicators.

“Making a non-toxic spirit fluid is very simple.  Mix 85-90% propylene glycol and 10-15% distilled water (by volume).  But do note that with machines that do not use a pump to distribute fluid, it requires a more absorbent wick.  Such a wick can be made using soft, pure wool shoe felt, about 1/4“ thick.  It needs to be a material that absorbs very quickly.  An absorbent upholstery foam may work as well.

“There is a tendency for some papers to curl with this fluid, but I found if you run the paper with the top side as it comes from the package up, then the curl occurs toward the bottom and is not much of an issue for most things I duplicate.”

Categories
Uncategorized

So-Cal Mimeos Looking for a Home

A collection of mimeograph machines and supplies is available in Inglewood, California. They’re no longer being used and are just in storage for the time being.

In addition to the AB Dick Model 434 pictured above, there are other machines including Speed-O-Print, Gestener, other AB Dick, etc. They’re free for anyone who can use them. Please send me an email at [Wendy] [at symbol] [name of this website] if you’re interested. Or reply here.

Let’s rescue the mimeos!

Categories
History

Production-Level Duplicating

Mimeomania member David Kasprzak recently posted about his knowledge of 1970s mimeograph use. Reposted here (with changes for clarity) with his permission:

I get asked all the time, “How did printing companies use mimeographs?” My Grandfather’s old company started with offset presses, then added mimeographs from both A. B. Dick and Gestetner. In the beginning they had secretaries who typed stencils for local businesses’ printing jobs . Most of the work was bulletins, letters for mailing, and reports. Mimeographs were used daily, there were 6 going all day long printing various jobs.

Around the end of the 70s, data processing became the fad. Computers started flowing into the offices. Our office was no different, the word processor began to take hold. The older Varitypers and IBM Composers and mag card machines began to go silent.

A.B. Dick came out with continuous feed stencils. WordSTAR was the processing software of choice at that time. The copy was input into this program, then formatted for the pages. The fonts were chosen. The continuous feed stencils were loaded into the printer; only certain printers that had a bottom feed could be used, such as the GE Line Printer or the Qume printers. The special stencils came in a box of 250 – they didn’t have headers on them, and they were already interleaved with cushion sheets and backing papers. It was the backing paper that had the perforations for the tractor feeders. You could not use a machine that was friction feed as it put a lot of extra marks on the stencils as they passed through the machine.

A dummy copy was printed out before the stencil job was run, to check for errors and formatting. This mock-up copy was used to tell the final printing groups what stencils to use and where to paste in the electronic stencil images.

This was quite a production to do a small cookbook or corporate report, but it was easier than typing the stencils. You could not use electronic stencils for each page as it took too long and was at that time too expensive to use for every page.

Once the package was ready to print, the font wheel was inserted into the machine, stencils were loaded, and the job as printed.

When done, the work was inspected for perfection and then the whole package was sent to the prepress department for assembly, the stencils were torn apart and headers pasted into the masters.

Work for adding images was also done here. When ready it was sent to the press room for printing.

All stencils were filed for future use and reprints.

Sometimes the GE Printers were used for printing out spreadsheets and workbooks of financial nature, they worked better than the daisy wheel printers.

Wordstar was a great processor and did an excellent job at the time. This was all before windows came to be the software of choice – everything was done in DOS.

That is how it was done in the old times to speed up production.

Several commenters also posted about their experiences with other aspects of duplicating work. Check out the original post if you’re interested!

Categories
New additions Updates

July Update

Well, it’s been quiet around here! Nonetheless, over the last few months, I’ve been doing some behind-the-scenes work to make up for my lack of actual creative output.

With none of the fanfare one might expect of such thing, I’ve launched a “print shop” to offer print-on-demand copies of mostly-mimeo, but also other eclectic publications (mostly things in the public domain that deserve saving in print). Right now there’s only one thing that’ll be of interest to duplicating aficionados, and that’s a very nice copy of A. B. Dick’s “Fundamentals of Mimeographing” in a spiral-bound format.

That same volume is available for free in digital format in the library. The print version has essentially been “remastered” to clean up yellowed pages and remove stains and marks of age; all original color pages are presented in color. Additionally, its spiral binding allows it to lie flat for easy use while you follow the mimeographing lessons.

It’s pretty snazzy! If you’ve ever wanted a step-by-step guide to plunk down on your work table while you figure out stencils and ink and what all the parts of the mimeograph machine are called, I think you’ll really like it.

***

More recently I “catalogued” the advertisements and sales brochures currently available in the library after having uploaded some twenty or more documents scanned by Kevin B. from his physical collection.

A similar list has been compiled for the collection found on the Service and Instruction Manuals page (a collection that has also been filled out by Kevin’s generous efforts).

Both lists reveal significant additions since my last update post.

***

Categories
History How-to

The Pre-Hectographs, part 1: The State of Copying up to the Early Industrial Revolution

No, the pre-hectographs were not members of an art and cultural movement the way the pre-Raphaelites were. To our eyes they look simply like interim technologies, even like failures cast aside in the long winnowing process of time. But were they, ultimately? Will someone in the future decide to loop back around and pick one of these methods up, the way many of us in the digital age have looked back to mimeographs and hectographs and their offshoots, the spirit duplicators? Will they turn out, in the end, to be the vehicles of some future art and cultural movement? Only time will tell.

Who’s to say what constitutes a failed (or obsolete) technology when none of us know the full course of human endeavors far into the future?

Certainly some of the methods I came across as I searched through records for information on pre-hectograph (or contemporaneous) copying techniques look like failures. They fell out of use – or were never picked up at all – though their inventors pinned high hopes to them. But I don’t think they necessarily failed at anything more than an inability to stand out and get “picked up” in a time of intense technological innovation.

Ok, one or more of them probably failed because they were far too complex to either make or use; here I point to the “pantograph” as patented by Henry Neumeyer in 1856, which, unlike its namesake, the pantograph invented by Heron of Alexandria in the first century AD (replica pictured here) complexified something relatively simple…

Wikimedia Commons

The pantograph was modified in 1631 by Christoph Scheiner, a German astronomer.

Wikimedia Commons

It was reconfigured by Claude Langlois in 1744, with this iteration refining the ultimate in simple tools designed to complete a complex job (of making a copy of an original drawing perfectly to scale), seen here,

Wikimedia Commons

Compare those, then, to Neumeyer’s pantograph that looked like this:

screenshot from patent

and this

screenshot from patent

I can’t make heads or tails of it, honestly, other than to note that a writing implement is connected through gears to… other things.

I don’t think it was widely manufactured and I wouldn’t be surprised if that was because of its extreme complexity.


Basically, for as much of pre-industrial human history as we know about, copying texts was a human-scale skill in that it required the direct copying effort (as in, a re-creation of the original) on the part of either the originator or a person trained as a scribe, copyist, or a clerk to do the same. Of course students of many subjects and at various levels of mastery copied texts for their own use, or in the case of images, the act of copying existing works of art was itself a training exercise. Actually the same is true of texts – writing out passages by hand has long been recognized as a useful way to train the mind as well as the eye and the hand – but when the desired result is a copy for a copy’s sake, it’s rather slow going.

Wikimedia Commons

A momentary interlude – into the fine arts

As late as 1799, several methods were available to artists who wished to copy prints and engravings or perhaps their own work for reuse. That year’s edition of The Laboratory; or School of the Arts -containing a large collection of valuable secrets, experiments, and manual operations in arts and manufactures gives details (p.36).*

It is the second method of the volume that might be of interest to stencil-duplicating experimenters, as it hews very close to that method though it veers off at the end. Essentially, the same process is followed to achieve a tracing, then, the tracing is punctured along the drawn lines with a sharp needle attached to a stick (to avoid poking your finger) so that a clean sheet of paper below it is also lightly punctured. That sheet is then rubbed with “finely powdered charcoal, with a little stump, or roller, made up of a narrow slip of cloth, or flannel” – this provides an outline that can then be drawn over with ink. Where this might be useful from a stencil standpoint is if the punctured tracing can serve the stencil’s function, allowing the charcoal to fall through to the page below – of course the page below need not be punctured in that case.

The remaining three methods involve two types of what amounts to homemade carbon paper (one prepared with “vermilion or black lead dust, mixt with a little fresh butter” and the other with lampblack mixed also with butter). The third calls for “lanthern horn” – sheets of thinly sliced cow horn traditionally used as panes in lanterns (actually available here) – upon which a design could be traced or drawn in India ink to then be breathed upon several times and, thus moistened, transferred in reverse to a moistened sheet of paper.

It seems unlikely that any of us will have vermilion, black lead dust, or thinly-sliced cow horn on hand, though lampblack (soot) might make an appearance; so these recipes are probably of limited value and are presented here mostly to appease historical curiosity. (Actually, maybe my curiosity isn’t totally appeased. I am considering a later post on the various types of carbon paper I’ve come across…)


The ages-old method of hand-copying text changed as the Industrial Revolution (1760 to about 1840) prompted most of its sufferers into a frenzy of productivity that stimulated mechanical and chemical experimentation. This resulted in James Watt’s copy press and eventually the hectograph.

But first, to trace the earlier signs of some of that experimentation, we turn to W. B. Proudfoot’s The Origin of Stencil Duplicating, where we learn that John Evelyn’s diary mentions an ink developed by 1655 that would “give a dozen copies when moist sheets of paper were pressed to it” (pp.18-19). No other details are given; there’s no mention of the use of a press or the type of paper utilized, and unfortunately, the ink recipe is not included.

Later, other copying inks would be developed, including this simple version described in 1881, employing the use of glycerin – a product discovered only in 1779 and thus not available to our 1655 ink-maker.

We might be able to infer that, minus James Watt’s 1780 invention of the copy press and the 1881 author’s use of glycerin-infused ink, the overall method employed by the 1655 copyist was similar to later developments in its use of slow-drying ink, dampened papers, and manual pressure, perhaps applied by hand; however, it was Watt’s invention (and his specialized ink) that changed the nature of copying tremendously.

We’ll pick up with Watt in the next post and explore the method of copying he invented and that was put into use around the world, with an eye toward recovering that and other pre-hectographic duplicating methods.

screenshot from hygra.com – public domain image depicting James Watt’s copying press.

—–

*Hat-tip to Joyce Godsey, proprietor of Time Traveller’s Rabbit Hole, who shared this gem See also her facebook group, here. Earlier versions of this book (1750 and 1770) do not include the copying methods.


References

Online sources cited above.

For a timeline-derived overview with images, please see The Early Office Museum’s Antique Copy Machines page.

Printed text:

Proudfoot, W. B. 1972. The Origin of Stencil Duplicating. Hutchinson and Co., Ltd.: London.

Categories
Uncategorized

Stencil printing with another obsolete technology

Mimeomania member Jukka Lääti demonstrated what’s possible with a dot matrix printer when combined with a mimeograph stencil sheet (the old kind, wax covered).

Photo courtesy of Jukka Lääti, Facebook.

If you have a facebook account, I recommend the video that was provided with the images here.

Amazing detail and resolution. I’m kinda bummed I didn’t buy a dot matrix printer instead of a fax machine!

Categories
Uncategorized

Efficiency takes the life out of life

Photo courtesy of Claudia Tan Danwei, from Facebook.
Categories
New additions Updates

November Update

Nearly 40 documents have been uploaded to the site, thanks to Mimeograph Revival reader Kevin B. who scanned them from his collection. They include advertisements, sales catalogs, and instruction and parts manuals from popular manufacturers ranging from AB Dick and Heyer to Rex Rotary and Roneo, and including less widely known machines from Banda, CopyRite, and Ellams.

On the back end of the site, a few things have been reorganized in the “projects” section in preparation for eventual print works. The duplicating project got started with a hurrah once my fax-machine woes got sorted out, but then I got slammed with a big series of work projects just as I was figuring out that my Heyer Lettergraph Model D has a likely impression-roller issue.

The next few weeks will have me assessing whether this is the case and deciding if I need to get the roller refurbished – possibly making it time for me to review the work needed on the Heyer Model 1770 and see if I can get it running even though it’s got scars from its battle with the USPS.

I also made up a gelatin duplicator (hectograph) and used it to make a few dozen prints of the cover for the project I’d started on the Model D. A post is forthcoming with more details on that.

In addition, I’m considering putting together a print-on-demand book or two of some of the documents available here. If that’s something of interest to anyone else, please let me know!

Meanwhile, the comments sections of various pages and posts are little treasure troves of useful information provided by MR readers with years of mimeograph experience. It is rather inconvenient that they’re scattered all over the place, so I wonder if a dedicated forum would be something other mimeo enthusiasts would like to see (maybe especially those who don’t want to be involved with facebook or who can’t access it from their country).

Please leave a comment here if any of these things sound useful to you!

Categories
How-to Trial and Error

Functional Fax, Finally

-plus tips to ensure that you get a good machine-

With a new Brother Intellifax 775, I am now in thermal-stencil-making business. I prepped my Riso master sheet, inserted it into the paper feed tray, put my original into the scanner feed tray, hit copy, and voila, a thermal stencil with good resolution and no marring of the thermal paper.

It was pointed out to me that I could easily apply tape over the cartridge sensor lever to trick the machine into thinking a cartridge was in place (see photo below). Thermal paper could then be taped to a sheet of paper and, when run through the paper feed mechanism, the thermal printer would print directly on the thermal paper. That trick prevents the massive hassle of winding thermal paper onto cartridge rolls.

Should you wish to use a thermal fax machine to print stencils, I recommend the following:

  • Get the newest machine you can.
  • If you get one that is “new in box” make sure it’s NOT a model that has been sitting in its box since the 1980s. Or even the 1990s… and maybe not even since the early 2000s. Really, get the newest machine you can. Unfortunately you’ll likely be guessing when any particular fax machine was made – I have had no luck figuring out the manufacture dates of particular models; that information doesn’t seem to be publicly available. Still, you can kind of tell by brands’ model numbers that, in many cases, increase in relation to later release dates.
  • If the fax machine is used, ask the seller to test the copy function and send you proof that the output is clean. Ideally see a photo of both the original and the copy. If the seller says they can’t do that because they don’t have a cartridge installed, think long and hard about the purchase.
  • Purchase only from sellers who accept returns.
  • Test the fax machine immediately upon receipt – I waited too long with my first one because I was busy with other things and missed the chance to get a refund for its being non-functional.

Had I done those things, I could’ve saved myself some trouble. Oh well, at least I gained the experience with which I can help you make a better fax-purchase decision.

Here is what you want to look for:

  • A plain-paper thermal fax machine* – this prints on regular (letter or A4 depending on your location) copy paper with a thermal-printer mechanism.

Avoid laser, laserjet, and inkjet fax machines. They do not have the thermal printer unit that Riso master paper requires.

Alternatively, you can try one of these:

  • An Older-style thermal fax machine that prints on rolls of thermal “fax paper.” If you try this, make sure that the rolls are the same width as the Riso master rolls you wish to use. In some cases you can just swap out the thermal paper with the Riso master roll.

*Today I spent some time looking for the latest in thermal fax machines. I hate to break it to you, but there isn’t one. Most (all?) thermal fax machines have been discontinued. I checked the following manufacturers: Brother, HP, and Sharp. Likewise, neither Amazon, Walmart, Staples, OfficeDepot, nor Best Buy are carrying new thermal fax machines. Ah, the poignant sound of another obsolete technology slipping out of reach.

Your best bet is your local used-goods market/garage sale circuit, or online via ebay or facebook marketplace.

If you don’t need to make stencils from originals that are already on paper and are willing to produce directly from your computer, you can try a “pocket printer” that uses thermal printing technology. A Mimeomania member reports good results with a Paperang A4 printer (300dpi) and a quick search shows several such things for sale on various sites. Looks like A4 size is cheaper than letter size – but, since Riso paper is most easily found in A4 size, Americans don’t have to aim for letter-sized since stencil size can be flexible.

If you’d rather have a plain-paper fax machine, I can attest that the Brother Intellifax 775 works for this purpose. In addition, I’ve seen videos with the Intellifax 575 making thermal tattoo stencils, and of course Stampalofi uses a Philips (model unknown).

Mimeograph Revival