Henry mercer dating old houses

This was made at first by dropping the freshly cut piece, point downward, into a slotted clamp or vise, and then spreading the larger projecting end with a hammer, as in the case of the wrought nail.Cut nails are easily distinguishable from wrought nails by the following very apparent differences.1825, and throughout the following century, with stamped heads, showing level tops impressed by a single blow or stamp.

The conclusions are as follows: that old houses may be dated within reasonable limits by the nails used; the hinges; the door panels; the wrought-iron thumb-latches; the Norfolk latches; the cast-iron thumb-latches; the wood-screws; and the sawed laths.This cutter, rising and falling rapidly, clipped off the end of the iron plate crosswise into narrow, tapering, rectangular slices or nails, whose length was established by the width, and thickness, by the depth of the nail plate.The taper of the cut alone, produced the point, but not the head.It further appears, that, at first, since the knife of the cutting machine was set diagonally so as to cross-cut the nail-plate into a tapered slice, the workmen had to turn the plate upside down at each stroke, so as to continue the taper by reversing the cut; and the very earliest cut nails (1800 to c.1810) prove this fact by the down smear of the knife, round-edged above and sharp below, being reversed on the two opposing cut sides of the nail shank.

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