Steven Lowe
Note:
A version of this article appeared in Varangian Voice Issue 32, of August 1994.
It has been considerably revised in light of further research and reconstruction.
It is not suitable for novices.
For some time I have been
interested in the helmets shown in the Madrid version of the Skylitzes
Chronicle, particularly those of the type shown in fig. 1.
Fig.
1 From the copy of the Chronicle of
John Skylitzes in the Bibliotéca Naçional, Madrid (second half of the 12th
century C.E.)
During correspondence on
the subject in the early 1990’s, Tim Dawson suggested a likely explanation of
how they were made, and this article describes how I constructed my own.
Fig.
2
Tim’s original drawing giving a
theoretical construction of the helmet.
Materials
and equipment needed:
·
3mm (14 ga) steel strip,
approx 80cm (31.5”) long and 20mm (3/4”) wide. This will be your browband.
·
1.6mm (16 ga) steel
sheet, approx. 60 cm (2 ft) square.
·
Electric drill
·
3mm (1/8”) drill bits
(several – you might break or blunt a few)
·
3mm x 12mm (1/8” x ½”)
bolts with nuts (about 50)
·
Hacksaw, angle grinder
with cutting wheel or jigsaw with hacksaw blade.
·
3mm (1/8”) diameter
domed head rivets, or clout nails to cut down and use as rivets (about 50).
Alternatively, if you want to use larger rivets on the browband, make about 12
of these rivets 5mm (3/16”) diameter.
·
A wooden stump or log,
with a shallow hollow dished in one end.
·
A heavy hammer with a
slightly curved face (panelbeater’s hammer is ideal)
·
A ball pene hammer
·
An anvil or piece of
railway line
Note: All holes are 3mm
(1/8”) unless otherwise stated.
Fig. 2 shows the pieces
needed to make this helmet. I have included a scale so that you can get it
correct. I made mine to fit myself – head circumference at eyebrow level 58cm
(22.8”). I found it fitted me quite well, if adequately padded. You might have
to adjust the size a bit to fit yourself. Once you have printed it off, photocopy
it up to full scale, then adjust the copy size to suit your own head.
Fig.
2 The plates needed to make the helmet
Use 1.6mm thick (16ga) mild
steel throughout, preferably cold-rolled (bright) steel, so you don’t have to
remove a black layer before you can have a bright shiny helmet (as all
Byzantine helmets seem to be). I have been told that black steel can be made
shiny by soaking in vinegar with a bit of salt added. I haven’t tried it for
myself. See
here
for details of the technique.
Making the frame
Start with the centre band.
It needs to be slightly “dished” so it can curve in three dimensions. Viewed end-on, it should form a very
slightly curved arch. For dishing technique, click here
. Then carefully
bend it to match the shape shown on the helmet below (worn by far left hand
figure in fig. 1).
Fig.
3 The profile for the centre band.
Browband
Now something I probably should have done but didn't, and which should make helmet construction considerably easier; form the browband into an oval to the shape of your head (allowing extra for padding) and bolt it to the centre band, so you form a frame within which all the other plates can be placed.
The browband
is made by curving a piece of 3mm (1/8”) thick steel strip by hitting along one
side, as in fig. 7. The side that you are hitting will squash flatter, and
spread outwards. Since the other side doesn’t change its length, the only thing
the strip can do is curve.
Fig.
7 – curving the browband.
Once it is the shape shown
on the pattern, curve it into an oval to fit the opening at the bottom of the
helmet. Get it exactly right, clamping it into position to make sure it fits
well.
When you’re happy, sand and
polish it smooth, and attach it. The
first hole goes dead centre at the front of the browband, and the front of the centre band. The browband goes outside the centre band.
At the back, cut it to length so the ends of the browband meet
flush. There’s a bit of skill in this. Best to cut it a little over long to
start off with, and gradually file it down till it fits exactly. Bolt it to the back of the centre band, with one bolt on each end of the browband. It will be able to swivel a bit if you do this, so it's best to clamp it in place till you have another of the plates to hold it all firm.
Dishing
the plates
Dish one of the top plates to fit the profile of the centre band. If you do this correctly, it will
curve just right to allow for the middle plate to fit under it. Note that although
this requires less dishing than for the plates of a four-plate spangenhelm, it
is more exacting. Make sure to put enough curve in the plate for your head to
fit comfortably inside.
Smoothing
the plate
Once the plate is shaped,
it’s time to get the surface nice and smooth. Find all the little humps and
bumps and gently knock them out with your curved-faced hammer. It takes a bit
of patience, but it’s worth it. Smoothing
the surface will have changed the shape of the plate somewhat, so now go back
to gently shaping until it fits exactly within the frame, with no
inequalities, gaps or bumps.
Shining
the plate
Next, if you haven’t done
so already, shine the browband and centre band. If you’ve started with bright
steel or soaked your black steel in vinegar, this should be a fairly easy
process. Use a buffing wheel, and then metal polish.
It’s also possible to get the
surface blackness off with a fine sanding wheel or disc. Once this is done, you
use progressively finer grades of sandpaper/disc until it is beautifully smooth
and shiny. This technique can help you find and fix all the little inequalities
you missed on the previous step, but there’s a lot more work doing it this way,
and it makes the metal more likely to rust. Avoid it if you can.
Clamping
As much as possible in the
early stages, clamp the pieces together instead of bolting them. Don’t be in
too much of a hurry to drill bolt holes to join the plates. If you have to
re-adjust, you’ll have to re-drill the holes, and you may end up with
unsightly, out-of-place holes that then need to be filled by welding or blind
rivets.
Fig. 4 shows the shape the
top plate and middle plate should end up. Use a small piece of smooth metal
sheet between the jaw and the helmet plate. This is to stop the grip on the jaw
from marking the plate.
Fig.
4 The top and centre plates dished and
clamped together.
Do the same with the bottom plate. Make sure you take the trouble to get all the
plates to fit correctly without any gaps, dishing if you need to, or they will
become permanent when you rivet it together, and it will end up looking bad.
Worse still, if the pieces don’t fit together well, rivetting together will put
the helmet out of shape.
Re-adjust the shapes of
the plates until they fit smoothly within the frame. You will have a chance later on to get this
exactly right. Though it’s not possible to check this completely, you should also
be checking the shape of the partly completed helmet against your head, to see
if it’s going to fit. If not, work out why and fix it.
Note: there can be a problem with the arc pieces curving
too far inward at the top inside the helmet, forming “ridges” which can rub
against your head. Make sure the curve at the join is smooth at all points,
including here.
Fig.
5 The plates of one side bolted and
clamped together.
Bolting
together
When you’re completely
happy with the shape of this side of the helmet, and that there are no gaps,
drill holes as shown and bolt the plates together. Note that you should space
the holes at equal distances – about 75mm (3”) apart - it looks better. The heads of the bolts should be inside the
helmet, so you can put the helmet on to test the fit. Do the bolts up loosely
to start off with, and gradually tighten each one till you’re happy with the
shape. You can affect the form of the helmet quite a bit by tightening the
bolts unequally. This is a temporary move. You will be replacing the bolts
with rivets at a later stage.
Repeat the whole exercise
for the other side, making sure that the helmet is perfectly symmetrical (i.e.
the curve is equal on both sides).
Bolt the helmet together
loosely, then tighten up the bolts to an equal amount, keeping an eye on the
shape of the helmet. It should look
like this. (Note that this photo does not show the browband - I didn't add it till last. The photo is a record of how I did it, not how I'd advise you to do it.)
Fig.
6 The helmet assembled but not yet
rivetted.
Now, check that opening for
your head. If it isn’t symmetrical, adjust it (if it’s not too far wrong,
bashing it with a hammer is probably enough – you’ll probably wreck some of the
bolts, but they’re cheap). Check that it actually fits your head.
If not, figure out why not, and fix it. Maybe you need to get out the big
hammer again.
Fitting
the aventail and straps
At this point you need to
decide how you will attach the straps that hold the helmet on, and your aventail
(the protective “curtain” that covers the back of the neck – it can be of
padding, lamellar, scale or mail). It’s better if the rivets that attach these
are hidden under the browband, or if you use the browband rivets to also
support the aventail and straps. So plan how you’re going to do it now, and get
the bits ready and in place. If you’re going to use a leather suspension system
in the helmet instead of padding, this should also be arranged now.
Rivetting
Now, take out the bolts one
by one. As you take out each bolt, replace it with a rivet. This keeps the
helmet in shape. If you take all the bolts out and then put in all the rivets,
it’s likely to go out of shape, and the holes won’t line up. Believe me, this
is the best way to go, from long and painful experience. Make sure your
aventail, straps and suspension system (if you’re using one) are rivetted in
place now. You can improve the look of the helmet if you drill larger holes in
the browband and use 5mm (1/4”) domed rivets. For information on traditional rivetting click here Finishing
touches Now your helmet is all but
complete. Pad it with 12mm (1/2”) of felt or some similar substance.
Alternatively you can put in a leather suspension system, or use a padded
arming cap. The helmet really should have a knob on top, as well. Voila! Rationale I believe this construction
method was used for two reasons; strength and ease of construction. The overlap in the metal at the joins
between bands would form reinforcing “ridges”. This might also enable the
helmet to be made of thinner metal, to produce a lighter helmet, but still with
considerable strength. As far as I’m aware, iron
was usually available in hammered bars or billets. The bands themselves could
have been fairly easily made by flattening iron billets or bars in a forge, and
could actually have been fairly easily shaped into curves this way. Forming the
billets into sheet, to make the plates for a conventional four-plate spangenhelm
would have perhaps required greater skill, given the form the iron came
in.