Page:Miscellaneous Papers on Mechanical Subjects.djvu/127

From Wikisource
Jump to navigation Jump to search
This page has been proofread, but needs to be validated.
NEW YORK INDUSTRIAL EXHIBITION.
113

CHAPTER IV.

Locks—Porcelain Handles—Clocks—Pistols and Guns.


PITTSBURGH, NEWHAVEN, WORCESTER, HARTFORD.

21. Lockmaking.—The manufacture of locks appears to be rapidly extending. In an establishment at Pittsburgh, employing 350 men in making locks, coffee mills, copying presses, &c., good work was being turned out.

Another at Newhaven, Connecticut, employs about 200 men in making locks and lock-handles. The latter are made of coloured clays, so mixed as to present a grained appearance. They are first moulded by hand, then turned in a self-acting lathe with great rapidity, and are afterwards baked in a furnace.

Padlocks are made here of a superior quality to those of the same class ordinarily imported from England, and are not more expensive.


22. Clockmaking.—The celebrity attained by New England in the manufacture of clocks