Page:Popular Science Monthly Volume 40.djvu/511

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MUSICAL INSTRUMENTS—THE PIANO-FORTE.
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in recent years through the introduction of an improved grand-action principle, and a system of stringing, which are illustrated. They are sparing no expense or pains in their efforts to improve the character of their instruments, and such sacrifices are entitled to acknowledgment. Their grand-action improvement assists the production of fine graduations of tone in performance as well as 1. Behr Brothers' Grand Piano Hammer, with Compensating: Lever.
2. Ordinary Hammer and Butt.
3. Behr Brothers' "Stringing Device." (All patented.)
prompt repetition, while their method of string adjustment has been adopted with a view to rendering the instrument more capable of staying in tune, as well as for the purpose of tone development. This is applied to both uprights and grands.

James & Holmstrom, of New York, have recently patented and introduced a "transposing key-board" into their uprights, which is receiving considerable notice from artists. It is an ingenious adaptation of the ordinary key-board, by which the piano-performer may change the pitch at pleasure. Though the idea was anticipated a century ago, and frequently experimented with, it was reserved for Mr. Andres Holmstrom, of the above firm, to apply it with success. It is a great boon to vocalists and artists generally, and of popular value as well. In the invention referred to, the key-board, which is distinct from the action, is made to move a little toward either side, so as to bring the keys under different hammers; the performer is meanwhile given easy and effective control over its disposition, and variations of pitch can be obtained with ease. Apart from this invention Mr. Holmstrom has drawn many excellent upright "scales," which have given him a high reputation among piano-makers.

Conover Brothers, of New York, have also patented several inventions of much significance, the author of which is Mr. C. F. Conover, one of the most remarkable of the later-day school of makers. These cover improvements in almost every department of the upright instrument. They include an original tuning-pin arrangement, a method for obtaining prompt repetition in the