US154022A - Improvement in organ-pipe attachments to piano-fortes - Google Patents

Description

2 Shets--Sheet I. CURDLEY. rgan-ppe Attachments to Pianoforte's.

Patented Aug. H, 874.

FIG, 2

WITNESSESI 92W INE GRAPHIC C0. FHOT0-L|TH.39& 4-1 PARK PLACE,

2 Sheets--Sheet 2.. l. CURDLEY.

luga'n-pi-pe Attachments Atu Pianofortes.

N0.l54,022, Patenfed Aug.11,187'4.

VVITNESSESI INVENTOR:

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yUNITEn STATES PATENT OFFICE.

JAMES CORDLEY, OF ADRIAN, MICHIGAN.

IMPROVEMENT IN ORGAN-PIPE ATTACHMENTS TO PIANO-FQRTES.

Specification forming part of Letters Patent No. 154,022, dated August'll, .1874; application tiled March 7, 1873.

To all whom it may concern:

ment to the said piano-forte.

My invention consists, first, in the combination of one or more sets of organ-pipes with suitable bellows and appliances for operating` the same, in the manner hereinafter described 3 second, in the novel construction of a treble wind-chest upon a small scale, whereby the pipes are located under their relative keys, thereby dispensing with the ordinary appliances heretofore used for the purpose of opening the valves, and in the location of the pipes in an inverted position under the piano-forte, whereby the original tone of said piano-forte is preserved; third, in the novel construction of an adjustable spring, whereby the pressure upon the bellows is regulated; and, in connection with said spring, the novel construction of suitable tuning-tubes, and the parts belonging thereto, whereby the same are operated, thus enabling the performer to conveniently and rapidly tune the pipes.

In the accompanying drawings, Figure 1 is a perspective view of the piano-forte and flute attachment which forms the subject of this invention. Fig. 2 is a sectional perspective view of some of the operating parts. Fig. 3 is a horizontal section of the bellows, and a portion of the ilute attachment, the plane of section being near the/upper part thereof. Fig. 4 is a perspective view of a section of a flutepipe, showing the tuning-tube and the thumbshaft.' Fig. 5 is a perspective view of a section of a metallic pipe, showing a similar tunin g-tube and thumb-screw. Fig. 6 is a top view of the adjustable spring. Fig. 7 is a separate perspective view of the llute attachment. Figs. 4, 5, and 6 are on a larger scale.

A is the piano-forte; A', the keys belonging thereto. Bis the case inclosing the attachment. M is the wind-chest; c, the valves belonging thereto. a a W are the appliances whereby the keys are made to open the valves. M is the throat. D Dl represent thepipes. J is the pressure-feeder. Gis thepedal whereby the same is operated. J is the pressure-bellows, and receives its wind from the pressurefeeder J, which wind inflates said bellows J Suitable valves K K are provided to prevent any return of the wind thus transmitted by the pressure-feederJ. The pressure-bellows J bein g thus inflated, and by means ofthe adjustable spring E R F E F pressed inward, the wind is pressed through the wind-sto ck V into the windchest M, and the keys A being pressed downward,the valve cis opened, causingthe wind to pass through the throat M into thepipes D D', whereby they are made to sound in unison with the piano-forte. L is a regulating-valve, which is made to open whenthe pressure-bellows J becomes filled with wind, thereby preventing any undue pressure upon said bellows. The adjustable spring (which is shown detached in Fig. 6) is located on the inner side of the middle boards, the lever E being held in position by means of the thumb-screw I, said thumb-screw passing through a slot in the middle board S, and operated upon the front side of said board, as shown in Figs. l and 3. In Fig. 4, D is a perspective view of a section of a flute-pipe, showing the tuningtube I and thumb-shaft o, whereby the pipes are tuned. In Fig. 5, D' is a similar view of a section of a metal pipe, showing its timingtube P and thumb-screwl o. Said thumbscrews may be used to operate either of the above-named tuning-tubes when desirable.

As the tune of all organ-pipes is changed by and with the temperature, it becomes necessary, in order to make this invention successful, that some device be used whereby the pipes may be conveniently and rapidly tuned therefore, when the temperature changes only a few degrees, the pipes are tuned by increasing or reducing the pressure upon the pressure-bellows J by means of the adjustable spring mentioned, and when greater changes of temperature take place the said pipes are tuned by raising or lowering the tuning-tubes by means of the appliances above named. l

also contemplate using the tuning-tubes Without the said appliances above named when desirable. The tuning-tubes may be raised or lowered in a body by means of a bar of Wood runnin g between them, and suitably connected, so as to elevate the tubes by raising,` either end of the bar.

What I claim as new is- 1. The Wind-chest M and levers YV, in combination with the valves c, throat M', pins a a',

Wind-stock V, bellows J J', valves K, K', and L, pedal G, and middle board S, as shown and described, for the purpose set forth.

2. The levers E E' ,l1inge R, spring` F, roller F', and thumb-screw I, in combination with the bellows J J and middle board S, as shown and described, for the purpose specified.

3. The combination and arrangement of the tuning-tubes P P', shaft o, and thumb-screw o', as shown and described, for the purpose specified.

JAMES CORD LEY.

Vitnesses:

J AMES THOMSON, HEMAN Looms.

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