After this the chiseling out or mortising can be proceeded with.
The doors are now made by mortising the top and bottom pieces to take the 3/8-in.
Fig. 3225 represents a mortising machine for the hubs of wheels.
To overcome this difficulty the latest types of mortising machines have a square hole-boring attachment fixed alongside the chain.
He had already invented and patented a machine for mortising the hubs of wagon-wheels.
Sometimes the grooving and mortising are combined,—an excellent way (Fig. 592).
Had they owned an auger or a mortising chisel, or even a good gimlet, the thing would have been easy enough.
Besides, the extra length makes the ends stronger for the mortising and less likely to split out.
They can be bought ready made and can be used instead of nails or screws, or instead of mortising, dovetailing, etc.
In the mortising just shown, there are only two shoulders where the tenon begins—that is, the tenon is made by only four cuts.