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Adjustable Gauge Pins


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BASIC Press works subjects: GAUGE PINS

Gauge Pins
are used to hold the sheet in place as the platen closes and meets the type form. Some folks cut slits in their tympans or make 'paper guides' out of folded or taped card stock, some early printers would glue 10 or 12pt 3-em quads to their tympan, then affix a small piece of card stock to the top to  hold the sheet against the platen.

But hand-made glued quads or paper gauges are hard to position and nearly impossible to adjust. To print squarely on the sheet, or to register two color jobs, Gauge Pins offer advantages in both time and accuracy. Edwin Megill was the most prolific developer and manufacturer of gauge pins from the time he began in 1869 - 140 years before this web page was published.


The Edward L. Megill Company, Brooklyn, NY

As you can see from the advertisement below, Edward L. Megill specialized in designing and manufacturing gauge pins - clever little devices used to hold paper in place - in a very specific place - as it is being printed on a platen press.

The advertising flier below illustrates a wide variety of various gauge pins designed and manufactured by Edward Megill - and later, his son Alfred L. Megill - over the years. The label illustration further down shows a Spring Tongue Gauge Pin inserted into the typman of a platen press.

"Attached to tympan, adjusted to position, teeth forced down and tongue over margin"

Sometimes - and particularly when doing a longer run - or feeding a heavy card stock which may tend to force the pin from it's locked position, press operators will drip a few drops of sealing wax onto the pin - to fasten it more securely to the tympan sheet.


Of particular interest in this advertisement are:
  1. The Spring Tongue Gauge pin at top center. These are the most common style pins in use and have been the flagship product of Mr. Megill's line for many years
  2. The Extension Feed Guides  in the top left of the illustrations. These allow the pressman to actually feed stock below the lower edge of the platen. The extension feed guides are clamped under the lower tympan bale and allow the pressman to feed the sheet extended below the bottom edge of the platen.
  3. The Flexible Guides - shown in the bottom right are most useful when used - as recommended - as the left guide - and particularly if the pin must be set beneath the left paper gripper arm or along the non-image area of an engraving or plate base which would crush a normal gauge pin of any style.

Original
                                  Advertising Flier for Megill's Gauge
                                  Pins         



Megill Gauge Pin label

While perhaps not the easiest or best style gauge pin to use, there is no question that Megill's patented Spring Tongue Gauge Pins have been and still are - for well over one hundred years - the most common gauge pins in use throughout the United States.

Some printer go through their entire careers using only Spring Tongue Gauge Pins as shown above.

Some of the gauge pins shown on the flier are still being manufactured using Mr. Megill's own patented machine - which he designed during the late 1800s. This machine was purchased from Edward Megill's son Alfred Megill (in 1969?) by what was then the American Wood Type Company, which has evolved into the American Printing Equipment Company.

These gauge pins are available from a variety of sources, including The Excelsior Press - and are included as part of the Small Press Starter Kit




Megill's Double Grip Gauge

Megill's Double Grip Gauge PinBut Mr. Megill did not stop with the Spring Tongue Gauge Pin - not by a long shot. Competing with Mr. Larsen's popular Quad Guides*, Megill announced an improved gauge pin design which the company patented in 1924.

The Improved Double Grip Gauge - also still in use and available today- at about five times the price of the simple Spring Tongue model.

But this gauge pin gives the platen press operator a more flexible adjustment mechanism - along with a "double grip" screw set which clamps the gauge pin tightly to the platen. The operator cuts a vertical slit into the tympan top sheet, slips the base of the pin unit under the packing, then tightens the thumb screws to clamp the pin tightly to the sheet.

The main advantage of this style of pin is in the ease of adjusting it's position - repeatedly, until the right position is found and the pin can be tightly clamped to the tympan, giving the feeder firm quides to feed against - guides which can be locked even tighter with the use of the included "key". No sealing wax is needed, no pins pierce the packing. A slit is cut and the pin can be moved up and down without wearing out the paper  under its position, as can happen with the simpler and less expensive spring tongue style described above.

Megill Double Grip Gauge Pin
                    Instructions

Megill Double Grip Gauge Pin
                    Illustration

Megill Double Grip Gauge Pin box


Megill's Flexible Feed Gauges A 100-year old gauge pin re-surfaces as the paper guide for today's Photo-polymer plate base printer.

This rather uncommon and unique gauge pin solves a common problem for many new printers. We now stock and supply letterpress printers with this unique and excellent gauge pin. The Megill Flexible gauge pin is particularly useful for printers who mount photopolymer plates on Boxcar Base or the Excelsior Chase-Base. Any base would crush normal gauge pins - but no the 1-point-thick Megill Flexible Gauge Pin.

Megill's Flexible
                    Gauge PinThis is Megill's virtually flat Flexible Feed Guide as can be see here. This pin is only one-point thick - low enough to position anywhere safely - under a depressed gripper or with an Excelsior Chase-Base or the popular Boxcar Base.

These pins work perfectly under both the Boxcar Base and our Excelsior Chase-Base. And, better than that, we have found a stash - a not-quite-unlimited supply, but enough that we are stocking 4 dozen - soon to be 100 - at a time. See The Fundraising Page to purchase.

Megill's Flexible
                    Gauge Pin
Instructions: To mount these Flexible gauge pins on your top tympan sheet, you must stab it through the top sheet about 1/8" below the line where your sheet will fall. Then slide the blade beneath the paper and bring the tip back up and out of the top sheet. This will set it lightly in place and you can pull a proof and begin adjusting position. Once the pin is in position, tap it gently at the cross of the "T" to stab the pins through the top sheet of your typman.
 
If you are running a large, heavy sheet - like a file folder, for example - on a larger 8x12 or 10x15 press, you may find it helpful to set a second pin on the left side. Otherwise the weight of the paper may force the pin out of position. A second pin can minimize this problem if it occurs.

Megill's Extension Feed Guides

For extending the capacity of your platen.

Now here's something every small press user should not be without - Megill's Extension Feed Guides actually increase the usable area of your platen by allowing you to set your lower guides as much as 1 1/4" below the lower edge of the platen.

And we do have these in stock. See the Fundraising Page to purchase some for yourself - or as a gift to your favorite small press printer.

Megill's Extension Feed Guides


Megill's Extension Feed Guides


Megill's Extension Feed Guides


Megill's Extension Feed Guides


NEW! January, 2011

Megill's Perfect Register GaugeNow, here's something very exciting.

We have found and acquired for our collection, a full, working set of three of Edward Megill's

Perfect Register Gauges

This is something very, very special - something many of today's printers have discussed as "a good idea - I wish we had gauge pins that could be more easily adjusted."

Well, we once did. 120 years ago, Edwin Megill came to our rescue and invented a very convenient and easily adjustable gauge pin.

Dates stamped on the pins we have indicate patent dates of March 31, and April 7, 1891.

Unfortunately - and until now - even common knowledge of the existence of this gauge pin has been lost. Perhaps some old printers had heard of them, but no one I had spoken to in the past 50 years ever implied that they had ever existed. There may be some more out there some where in Letterpress Land, but I sure don't know of them. If you do, please please let me know.

A curious note about this addition to our collection - these gauge pins were found in Flemington, NJ - only ten miles from the location of the Excelsior Press Museum!

Megill's Perfect Register Gauge PinThis gauge pin is glued to the tympan - approximately where you suspect the pin should be placed.

But, once in place, this Perfect Register Gauge can be adjusted up or down a few points - by simply moving the tang on the upper cam - to allow for Perfect Register of each card you print.

The Perfect Register Gauge is the ideal solution for tight-register, multi-color work, in which aligning subsequent colors is always a challenge.

click the image above for a close-up view. The photo may look a bit rough, but the cam moves smoothly, so these pins should still work as designed - 120 years ago.


Megill's Perfect Regsiter Gauge Pin Info Sheet
The sheet at the left includes complete instructions on how to use this pin on your press.


As you can see, the price was dropped from $2.50/set to $1.75/ set after these cards were printed.

Perhaps they were not well received by job printers who were experienced using the less expensive pins and did not feel a need for such a device.

Megill's Perfect Register Gauge Pins
                    (set of 3)

But today's printers simply don't have time to gain the experience of the typical printer of 100 years ago. For them, it seems that this perfect register gauge pin would be a boon.



Below is an advertisement and price list this that came with these pins...
Note the strange graphic image. We had not see such an image on any other Megill literature. What year was such a graphic design in style????

(Note: the Double Grip Gauge shown on this sheet was patented in 1924)


Megill's Perfect
                      Regsiter Gauge Pin Info Sheet    Megill's Perfect Regsiter Gauge Pin
                      Info Sheet

I'm sorry that we don't have any of these to share with other printers - YET - but if we can come up with a source - or figure out how to make some, we will...



Larsen Quad Guides

Another popular gauge pin, also still in use today, is the Larsen Quad Guide. Although copied by other manufacturers and available under other names (aka KORT - available from NA Graphics), the Larsen Quad Guide is number three in this list of what I believe are the most popular gauge pins in use today.

The Larsen Quad Guide is based upon the old technique of gluing a 10 or 12 point 2-em or 3-em quad to the packing, with a small piece of cardboard glued to the top. While only minimally adjustable, the idea of gluing tabs onto a platen is still with us today.

The Larsen Quad guide uses a spring clamp and 3 rows of small teeth on the upper part, to literally clamp the guide into place when slipped through a slit in the tympan. These guides are adjustable about 18 points in either direction and are very firm.


Note: Thanks to Edward Megill's grand-daughter (Alfred Megill's daughter) Charlotte for important updates to this brief history.



LINKS worth following:

Briar Press discussion of gauge pins - re: Boxcar Base & another
Boxcar Press' own suggestions re using gauge pins with the Boxcar Base:
about 1/3 of the way down the page at:  http://www.boxcarpress.com/boxcar-base/manual-print.html

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last updated 4/1/2010 9/8/2010 1/18/2011
contact Alan with Questions

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