Showing posts with label stone. Show all posts
Showing posts with label stone. Show all posts

Trades

Currier leather processing specialist. After leather has been tanned process, the currier dresses, finishes and colours the tanned hide to make it strong, flexible and waterproof. The leather is stretched and burnished to produce a uniform thickness and suppleness. Dyeing and other chemical finishes give the leather its desired colour. After currying, the leather is then ready to pass to the fashioning trades such as saddlery, bridlery, shoe-making, and glove-making.

ironmonger
farrier
smith
brazier
locksmith
bladesmith
cutler
spoonmaker
pinner
wiredrawer
lorimer
spurrier
nailer
pewterer
latten maker
bellmaker
furbisher
goldsmith

dyer
walker
weaver
shearman
chaloner
cardmaker
woadman

tanner .
skinner

whittawer
cordwainer
saddler
sheather

tailor
hosiers
capper
glover
purser

draper
mercer
retailer
tranter
chapman

butcher
baker
fishmonger
brewer
maltmaker
salter
spicer
cook
innkeeper

trowman
carrier

masons
carpenter
turner
glazier
painter

wheelwright
hooper
roper
bowyer
fletcher
sieve maker
patten maker
?charcoal burner (askeberner)
barber
millward 

Black, White, Brown, Red - Smiths ..  

𝕸 Material, Power Resources

Bones, wood ash, urine, rags -- very little went to waste in Medieval Europe.

Bone, Horn:
Chemical: 
Alchemy, Primitive Medicine ..      
Lye ..               
Potash Alum ..            
Soapmaking ..
Urine - a medieval resource ..
Urine - medieval uses ..


Dye, Pigment:
Fabric: 
Fibre: 
Weaving willow - eal trap, lobster pot, basket ..

Fleece:
Cloth Industry - Medieval & Tudor ..     

Food: 
Cherries, Plums, Blackthorn ..     
Fish Farming ..            
Foraging - Wild Food ..        

Fuel, Light: 
Askeburner ..     
Rush light to tallow ..

Herbalism:     
Alchemy, Primitive Medicine ..
Apothecaries, Barbers, Herbalists, Midwives ..                     
Herbalism, Humours, Illness ..     
Linden ..   
Morphine spread ..           

Metal:       
Blacksmithing ..     
Firescale ..     
Forest of Dean - ironworking ..     
Goldsmiths ..       
Iron Industry ..      
Iron furnace ..         
Paper: 
Coucher ..       
Layer ..       
Parchment .. 
Vatman ..       

Plant Fibre:
Papyrus .. 

Poultry: 
Feather Paintbrush ..       
Pigeon - Rock dove ..         

Power - Animal, Water, Wind:   
Tidal Mills, Tidal Bores ..     
Treadwheel winch, crane ..    
Trompe ..       
Water Lifting Machines ..

Granite Trough

Plug and feather, also known as plugs and wedges, feather and wedges, wedges and shims and feather and tare refers to a technique and a three-piece tool set used to split stone. Each set consists of a metal wedge (the plug), and two shims (the feathers). The feathers are wide at the bottom, and tapered and curved at the top. When the two feathers are placed on either side of the plug, the combined width of the set is the same at both ends.

Variations of the plug and feather method have been used since ancient Egyptian times. With this simple mechanical technique, the stone was first measured and marked. Bronze plugs and feathers were then driven into grooves which had been previously cut with a chisel and mallet.This was the most common method used by the Egyptians for quarrying limestone and sandstone. Evidence of this method for cutting obelisks in the quarries of Aswan can clearly be seen. The technique was also used by the Romans.

On Dartmoor, Devon, England, the process is known as feather and tare and it was used from around 1800 to split the large blocks of granite found on the ground there. It was, for instance, used to make the rails for the Haytor Granite Tramway in 1820.

http://en.wikipedia.org/wiki/Plug_and_feather

Lime burning



Lime Kiln playlist contents.

Calculating capacity of kiln in video 1 (based on ratio of 10:3 tons limestone:coal):

Specific gravities:
Limestone, broken 1554 kg/cu.m.
Coal, Bituminous, broken 833 kg/cu.m.
(anthracite would be too expensive for this task)

1 cu m = 35.3147 cu.ft.

Converting from kg to uk tons
1554 kg = 1.52945694 uk tons/35.3147 cu.ft.
833 kg = 0.874959603 uk ton/35.3147 cu.ft.

So,
60 tons of broken limestone fills 1385.4 cu.ft.
15 tons of broken bituminous coal fills 605.4 cu.ft.

At 56% of the weight of limestone (based on the atomic numbers CaCO3 versus CaO), each of the 2 larger kilns would yield 25 tons of quicklime.

(Presumably, the BBC researchers found the figures for the capacity of both kilns at Morwellham Quay.)

Trebuchet versus Palisade

Unleashing a Medieval Trebuchet on a Wooden Palisade - Smit > .

Burgdorf, Germany: Trebuchet–a 12th century giant catapult from Asia that dominated the battlefields of its era–is fired at a wooden palisade.

Bath Abbey Photogrammetry


Bath Abbey Footprint Project: Including Romano-British tessellated floor, a rare Anglo-Saxon charcoal burial and part of an Anglo-Saxon cemetery, a 12th century corbel from the previous medieval cathedral, part of a 14th century tiled floor from the medieval cathedral and a 17th century plaster lion’s head.