The Day Bros. of Philadelphia were in business by 1879 and lasted until at least 1902. The specialized in blacksmithing machinery and supplies, including forges and blowers.

Information Sources

• Agriculture of Pennsylvania 1879 page 143.

  The display of Day Bros., of Philadelphia, was remarkably perfect in every respect, comprising nearly every tool and piece of machinery necessary or useful in a blacksmith shop. The Hand Fan Blower is, with the exception of the belting, made entirely of metal; the fan proper is enclosed in a case fifteen inches in diameter, open at the center of each side for replacing the air as fast as required. A belt from the lower driving wheel to the fan-shaft gives motion to the fan, the power being multiplied by an upper driving wheel connected by a belt to a small pulley on lower wheel. The upper wheel is turned by a crank, one revolution of which gives thirtythree revolutions of the fan; there are six paddles in the fan, thus giving about two hundred to one revolution of the crank. If necessary the crank can be turned fifty times a minute, giving one thousand six hundred and fifty revolutions of the fan, and nearly ten thousand paddles to draw in and press forward the air. A tin pipe is attached to the fan case, and carries the air to the tuyere iron in the center of the fire. The blast is powerful, and perfectly steady, being a great advantage over an ordinary bellows. A shaft three and a half inches in diameter can be heated to the welding point in twelve to fifteen minutes. The Portable Forge is made of iron, and about the size of an ordinary shop forge; the blast is given by a blower similar to the one described, except built into the forge instead of on a portable frame.