These are a variety of viking shipbuilding tools. It is impossible to read the labels on the picture so I will do the best I can to explain. We'll start with the picture on the left.
The pull planes and hammers are pretty much the same today as they were then. Of more interest are the two tools that look like large screwdrivers. They are Spoon bits.
They are essentially ancient hand drills for holes for nails and hooks. On the top row, second from the right we also see a chisel for tenons. The remaining tools on the display are
Profile scrapers. These will straighten edges and make groves or dados depending on their shape. On the picture on the right we see some more Spoon bits as well as something that looks
like a violin bow like only a viking could make it. I am not sure what it is but I am assuming that by looping the string around the spoon bit and moving the bow back and forth
one would get greater angular momentum for less effort, a lot like starting a fire with a couple of sticks.
Now for some axes. We have basically three types: axe, broad-axe and adze, an axe with the blade edge perpendicular to the handle. Each axe would be used much like a rough plane
to do the initial smoothing of the planks before a Spokeshave (not shown) was used. And axe makes about a 30 degree cut against the wood (angle between the surface plane of
the wood and the center plane of the axe head) and remove a lot of wood. A broad-axe gets about a 10 degree angle and finally the adze which can achieve a 1-2 degree angular differential.
After these passes the final smoothing could be done with the spokeshave and finally a profile scraper.
These are a variety of viking shipbuilding tools. It is impossible to read the labels on the picture so I will do the best I can to explain. We'll start with the picture on the left.
The pull planes and hammers are pretty much the same today as they were then. Of more interest are the two tools that look like large screwdrivers. They are Spoon bits.
They are essentially ancient hand drills for holes for nails and hooks. On the top row, second from the right we also see a chisel for tenons. The remaining tools on the display are
Profile scrapers. These will straighten edges and make groves or dados depending on their shape. On the picture on the right we see some more Spoon bits as well as something that looks
like a violin bow like only a viking could make it. I am not sure what it is but I am assuming that by looping the string around the spoon bit and moving the bow back and forth
one would get greater angular momentum for less effort, a lot like starting a fire with a couple of sticks.
Now for some axes. We have basically three types: axe, broad-axe and adze, an axe with the blade edge perpendicular to the handle. Each axe would be used much like a rough plane
to do the initial smoothing of the planks before a Spokeshave (not shown) was used. And axe makes about a 30 degree cut against the wood (angle between the surface plane of
the wood and the center plane of the axe head) and remove a lot of wood. A broad-axe gets about a 10 degree angle and finally the adze which can achieve a 1-2 degree angular differential.
After these passes the final smoothing could be done with the spokeshave and finally a profile scraper.