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A comprehensive dictionary of organ stops - Allen Organ Studio of ...

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44<br />

DICTIONARY OF ORGAN STOPS.<br />

pervading tone which is so characteristic <strong>of</strong> the Diapasons <strong>of</strong> Father<br />

Smith, yet in far greater volume.<br />

Leathered<br />

Diapason<br />

(Diapason<br />

Phonon)<br />

showing<br />

leathered<br />

lip.<br />

Yet another attribute <strong>of</strong> Diapasons so treated, which renders<br />

them especially valuable in small buildings, is their facile<br />

speech, entirely free from that " spit " which is so <strong>of</strong>ten<br />

objectionably prominent in Diapasons <strong>of</strong> the old style at close<br />

quarters. In such buildings they also impart quite a "cathedral"<br />

roll to the tone. It would be possible to employ a very thick<br />

metal lip with a burnished instead <strong>of</strong> bevelled edge, but in<br />

actual practice it is found more satisfactory and convenient to<br />

cover a burnished lip <strong>of</strong> fair thickness with a strip <strong>of</strong> leather.<br />

The leather is passed round the lip, a short distance up the<br />

pipe on each side, being rendered adhesive by liquid fish glue<br />

or " Seccotine." Provided the metal be roughened with a file,<br />

the leather may be attached with ordinary glue, but as the<br />

latter is apt to crack with age, this method is best avoided.<br />

It is, perhaps, well to note that the s<strong>of</strong>tness <strong>of</strong> the leather<br />

affects the tone in no appreciable manner ; it is the thickness<br />

<strong>of</strong> the lip which is the important factor. Hohlflutes, and other<br />

open wooden Flutes, are sometimes made with thick lips<br />

covered with very thin leather or cartridge paper to impart<br />

smoothness and finish. Mr. Ernest Skinner, an eminent<br />

American <strong>organ</strong> builder, likens the discovery <strong>of</strong> the leathered<br />

lip to the invention by Barker <strong>of</strong> the Pneumatic Lever,<br />

predicting that it will revolutionize <strong>organ</strong> tone as surely and<br />

completely as did the latter <strong>organ</strong> mechanism. An estimate<br />

which is by no means so exaggerated as might be supposed.<br />

The leathered Diapason, indeed, is now attaining a zenith <strong>of</strong><br />

popularity both in England and America. A prominent<br />

German builder also, who on the author's recommendation<br />

made trial <strong>of</strong> it, was so struck with the refined quality <strong>of</strong> tone<br />

that he forthwith signified his intention <strong>of</strong> adopting the<br />

process. A few isolated and unsuccessful experimental<br />

attempts at improving the tone <strong>of</strong> the pipes by coating their<br />

lip with paper, parchment, felt, and kindred substances, have<br />

been recorded, but undoubtedly the credit <strong>of</strong> having been<br />

the first to perceive the value and inner significance <strong>of</strong> the<br />

process must be accorded to Mr. Robert Hope-Jones. It was<br />

only at the cost <strong>of</strong> considerable thought and labour that he<br />

was able to develop his crude and embryonic scientific theory into a<br />

process which bids fair to transform modern <strong>organ</strong> building. The names<br />

<strong>of</strong> Cavaille'-Coll and George Willis, and <strong>of</strong> Hope-Jones, will be handed<br />

down to posterity as the authors <strong>of</strong> the most valuable improvements in the

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