Identifier: historyofamerica00spil (find matches)
Title: History of the American pianoforte : its technical development, and the trade
Year: 1890 (1890s)
Authors: Spillane, Daniel, 1861-1893
Subjects: Piano
Publisher: New York : D. Spillane
Contributing Library: Harold B. Lee Library
Digitizing Sponsor: Brigham Young University

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
ctly on the same prin-ciple that an impression is much more easily made alongthe grain of the wood than it can be produced on endwood. As a natural consequence a hammer made of such feltcannot be as smoothly sand-papered (the hair will stickout in all directions), but for that very reason the ham-mer will last so much longer than the smoothly finishedhammer of the old style of felt, in which the grain of thefelt, so to speak, runs in the same direction as the shapeof the hammer. Patent No. 364,496, June 7th, 1887, granted again toAlfred Dolge for an improvement in piano hammer-felt,by laying alternately with the wool a woollen nettinginto the felt for the purpose of interlocking the fibres ofthe felt with the meshes of the textile fabric, withoutdestroying the elasticity of the felt, and consequently thehammer will retain its original shape even if, as it isnecessary on all overstrung pianos, the hammer is bev-elled off on two sides. While the other patents mentioned have proved them-
Text Appearing After Image:
« oQ W H H HC►JO ft o« 1-4 KINDRED BRANCHES. 321 selves positive improvements, and are so acknowledgedby the leading manufacturers here and in Europe, nojudgment can as yet be passed upon this invention. The improvement described in Patents Nos. 397,812 and397,813, granted February 12th, 1889, seems to be des-tined to revolutionize the whole process of fulling felt,and because of the startling simplicity of these machinesit can be understood at the first glance by any one thatthis most natural process of setting the felt, or, moreproperly speaking, the wool hair, must produce just ex-actly what every piano manufacturer always desires, afirm and yet elastic tenor and treble. That these settingmachines will eventually make the pressing of the feltsuperfluous is obvious. In connection with the felt Mr. Dolges hammer-press,Patent No. 361,144, April 12th, 1887, which is acknowl-edged as the most perfect system known, must be speciallymentioned. Besides its many other excellent qualitie

Note About Images