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Naming and measuring a gun carrier the scandinavian way

av Trond Johannessen


Ekstrabilde
Tekst
Se also the Artillery dictionary for more translations  
The carriage component and names

dimensional

C = Caliber = The bore of the gun

L = length
H = height
B = breadth
T =  thickness
D = depth

Sidewalls

sidewalls was made of 2 parts over and under walls ond where splice together and bolted with 5 long irons. The bolts in front and behind the trunnione was also used as attachment for the trunnion cover. one had an eye at the top to a gusset.

Breast

The breast was a compact piece of wood that went from the trunions down to the fore wheel axel. This was inlaid in the sidewalls and bolted with one bolt in each sidewall.

Røstingen

This is the front of the sidwalls sidewalls

Bunnstykket

The earliest carrier had hole bottom before 1750 to lighten the carrier they replaced the bottom with "røstingen" at the back.

From The Drawing Name of part or measure Dimension
a Measure of length The Cannons L fra trunnions forkant til druen
b behind trunnion Length = ca. 3 to 4 C
c In front of trunnion Length =11/6 C
d Leie for stillholtet Length = ca. 2 1/2 C
e Hole to the "Broge" (Rope to restrict the recoil )  
f trunnions rest Depth = 2/3 av diameteren
g Røsting Thickness= ¾ C inlaid in the sidewalls 1 inch
h breast Thickness= ¾ C inlaid i sidewalls 1 inch
i breast height Totale height vary from where the Cannon was deployed
j   Depth= ½ Caliber
k   Length =11/2 Caliber
l wheel axel the square part
Length = breadth between sidewalls + 1 1/2 Caliber
Thickness = 1 1/4 Caliber of this is 1/4 inlaid in the sidewalls underside. Each of the round ends have:
Diameter = 1 Caliber and
Length 2 Caliber
m Frontweel Diameter = 3 C Thickness=1 Caliber Hullet = 1 Caliber
n bricks reaches almost to the weels lower edge (spare wheel )
o Aksel placing so that the weel is on the inside of the front of sidewall. ca. 1 1/2 Caliber
p Steps Length ¾ or 1 Caliber, H= 3/4 Caliber Thickness L på alle palene er
q    
r    
s sidewalls Thickness= 3/4 Caliber, distance between sidewalls at the top = The Cannons diameter at the trunnione + 1/12 Caliber ordinarily parallel with The Cannons cone.
t sidewalls distance between sidewalls i lower edge is the same as with the trunnione +1/6 Caliber
u Bakhjul Diameter = 2 3/4 Caliber Thickness=1 Caliber, Hullet = 1 Caliber
 

 

Dimensjonene til en 24 pundig kanon

 
Here is an original description of an construction to the carrier for an 24 pound cannon from the middel of 1600 century. In addition is there an column for caliber and one for the desimalvalue of the caliber by using this one can construct the entire carrier from the diameter of the bore and length of the cannon from the trunnions to the back.  
  Fot inchr Caliber Desimal deler
sidewallss length blir fra druens ende til forkant av trunnione plus 1 1/2 caliber   9,0 1 1/5 1,20
sidewallss thickness   5,0 5/6 0,83
sidewallss front (endeved /røstingen) skrånes mot toppen   2,0 1/3 0,33
Fra sidewalls topp hjørne til tapphullets start   7,0 1 1/6 1,17
Tapphullet dypt   4,0 2/3 0,67
The sidewalls totale length deles i 2 hvor den akterste delen til blir til paler        
lowest steps height 1 1,5 2 3/12 2,17
From lowest step to upper edge of the sidewalls is divided in 4 equal parts and the steps hight is the lowest steps length. 1 3,5 2 7/12 2,58
From lowest step corner to the center is divided in 3 parts to get the lengt of the steps.        
Nedfelling i underste pal til å sette stilholtet på   0,5 1/12 0,50
Plassering av front axsel fra forkant   6,0 1 1,00
Forreste aksel innfelles i sidewalls   2,5 5/12 0,42
Fra bakenden til stødholtet   6,0 1 1,00
Stødholtet bredt 1 4,0 2 2/3 2,67
Stødholtet tykt bak   6,0 1 1,00
Stødholtet tykt i forkant 2/3 av bak   4,0 2/3 0,67
Bakakselen settes mitt under stødholtet felles inn i vangen   4,0 2/3 0,67
breasts thickness overkant   5,0 5/6 0,83
breast blir bredere nedover mot weel axles   7,0 1 1/6 1,17
Brog hullet plassering fra toppen er 1/3 av heightn og 1/3 av lengthn fra forkanten        
Ringboltens plassering er fra bunnen av sidewall, 1/3 av heightn, og 1/3 av lengthn fra bakkant. 20b        
Uthulingen under sidewalls starter fra forkant 1/4 av totale length   18,0 3 3,00
the caving under sidewalls ends from the weels back end        
caving under sidewalls depth   3,0 1/2 0,50
Rapperten er bredere nede enn på topp   1,0 1/6 0,17
axles height   7,0 1 1/6 1,17
axles breadth   6,0 1 1,00
axles square protrude out from the sidewalls   3,0 1/2 0,50
axles round end length   12,0 2 2,00
axles round end diameter   6,0 1 1,00
front wheels diameter or (height under axle 1caliber) d.v.s.   18,0   3,00
Bakhjulenes diameter or (height under the axle 5/6caliber) d.v.s.   16,0 2 1/3 2,33
Hjulenes thickness   6,0   1,00
sidewalls reenforces with 10 bolts 5 in each        
breast attach with 2 bolts        
stødholtet festes with 2 bolts