US971502A - Organ-pipe. - Google Patents

Description

W. B. HASKELLQ ORGAN PIPE.

APPLICATION FILED IIIBJO, 1910.

97 1,502. Patented Sept. 27, 1910.

WfT/VESSES l y y W A-Hnrney IINITED STATES PA ENT WILLIAM E. HASKELL, OF BRATTLEBORO, VERMONT, ASSIGNOR TO ESTEY ORGAN COM- PANY, OF BRATTLEBORO, VERMONT, A CORPORATION OF VERMONT.

ORGAN-PIPE.

Specification of Letters Patent.

Patented Sept. 2?, 19110.

Application filed February 10, 1910. Serial No. 543,050.

To all whom it may concern:

ll e it known that 1, VILLIAM E. HASKELL, of Brattleboro, in the county of Windham and State of Vermont, have invented certain new and useful Improvements in Organ- Bipes, of which the following is a specificatron.

The present invention consists in a novel construction of a reed pipe for pipe organs the effect of which is to supply a resonator having the capacity and quality of the usual resonator but being materially less in height. Accordingly, it is practicableto supply a pipe organ with reed pipes of low pitch in apartments where the height is not suflicient for .such pipes of orthodox construction.

'This result is accomplished without requiring any greater space laterally for the resonator; indeed, on the contrary, the improved resonator may be less in its extreme lateral dimensions than the old style resonator.

The improvement is illustrated in the neeompanying drawingswherein Figure l is a vertical longitudinal section of a reed pipe wit-h the improved resonator. Figs. 2 and 3 are diagrammatic views illustrating tapriations in the lineal proportions of the improved resonator.

Except for the improvel'nent in ,the resonator. Fig. 1 illustrates a common type of reed pipe with a strikin reed.

A is the reed or echalote with its-upper open end fixed in the passage of the block B,- and' communicating through it with the base C of the resonator, The vibrating tongue or languette D is secured firmly against the upper part of the reed by means of the wedge E. p

F is the tuning wire; and G is the boot which incloses the reed and tongue and forms the chamber which conveys the compressed air from the windchest to the reed through the inlet hole g, at its bottom. The boot has its wind outlet solely through the reed A, and otherwise has no outlet 'at its upper end.

The base C of the resonator is conical, diverging upwardly, with its largest end uppermost, and it is open top and bottom.

As shown, all of the cross sections of the, base; are clrcular, and its made of th n sheet metal of the ordinary composition used in metallic organ pipes. Instead, how ever, of the resonator extending upwardly to the full height necessary for the pitch of the reed, it is cut off at any desired level and the loss in height is compensated for by the inverted sheet metal bell H. The base C-of the resonator is open at its top as shown at a and the bell H is open at its bottom Z) and has a closed top 0. The bell H is of uniform area in cross section throughout its length, .and in the illustrated construction it is cy- "lindrical and all of its cross sections are circular.

The bell can be sup'orted in any convenient manner. As i lustrated, a screw threaded stem I is soldered to the upper end of the resonatorbase C and extends through a hole in the top I; of the bell. This screwthreaded stem l carries an adjustableimt J, upon which the under side of the top 0 rests. The nut J, can be adjusted on the 'screw I thereby governing the distance of the top of the bell above the open top of base (2. A sprin 'K, soldered on the interior of the bell bears against the exterior of the base (l and prevents any objectionable movement or the bell. A second nut J can be (as shown) I above the top 0 of the bell.

The area in cross section of the interior of the bell should be twice the interior area of the base C at its top. If thin metal is used the areas. although the nearer that exactitude is obtained the more perfect will the result he. The area of the. annular passage connecting the open top of the base with the interior. chamber of the bell should be just equal to the area of the base at its top; and this is secured by making the distance between the top edge-0t the base and the bottom surface of the. top 0 of the bell onequarter the interior diameter of the base at its top. It is important that the bell should be of uniform area in cross section when used with the tapering or conical base since this gives a gradually increasing area to the chamber between the bell and the resonator thus giving the same effect as if the tapering base were carried upwardly to the orthodox height of the resonator.

The relative lengths of the base and the bell can be varied without affecting the purpose of the resonator as a Whole, and different proportions are shown in Figs. 1, 2 and 'Fig. 3 shows in dotted lines the height of the resonator G if it should be extended vto'the level L, in theheretofore Well- -i'or the base. it can be ignored in computing known way, Inthe improved construction the resonator can be cut off at any height and the bell can com ensate for the cut-E I result of the presenceof the bell mensions than the commercial form. Like'wise,

- should not extend below portion. For examp e, as shown in Fig. 3 the base is shown terminating at the level X, and the bell H is of the same height as the portion cut 03; that is, its height is equal to the distance between the levels X and L. So, the resonator can be cut off at any point and'coinpensation can be made by the bell. For example, Fig. 2 shows the resonator out 01f at the level shown at Y in Fig. 3 and in this case the bell H is of the same height as the cut ofi portion of the resonator shown in Fig. 3 between the levels L and Y.' Fig. 1 shows a resonator base proportional to that of F ig. 3 if terminating at the level Z and the bell of Fig. 1 is proportionately equivalent to'the cutoii' portion between the levels L and Z of Fig. 3. In all these instances, the internal area of the inverted bell is just twice the internal area of the base at its open top, and the bell is of equal areas in cross-section throughout its length.

It is obvious, that the-lateral dimensions of the resonator need not be increased as a and indeed may be reduced. It is obvious, for example, that in the construction shown in Fig. 2, thejlateral dimensions, are less than those of a full height resonator indicated at its top by dotted lines in Fig. With the propertions shownin Fig. l the lateral dimensions of the bell are somewhat smaller than would be the lateral dimensions of the top of the resonator if extended up in the old way. F 1g. 3 shows the bell greater in lateral diresonator if extended up in the old way, but shows a construction, in

this respect, which would probably not be I used-in practice, the figurev being introduced to aid in explanation of the principle of the new construction, rather than showing a Fig. 2 illustrates a construction in which there would he a .variationin the quality of the resonance'owing to the bell extending down around theboot. It isa construction, however, which can lie-practically used in case diminution in height to that extent is necessary. If practicable, however, the bell the to of the boot, nor far enough down to interihre with the manipulation of the tuning Wire.

While the improvement is illustrated in connection with a ipehaving a striking reed it is also applicable to the resonators of. pipes'having free reeds.

The resonator constructed as set forth has two chambers, one within the base, the other between the base and the bell, and these two chambers extend-lengthwise and alongside each other and they communicate at their' upper ends.

ensue I claimi l. A striking reed organ pipe having a resonator comprising a sheet metal conical base open at top and bottom with its large end uppermost, and a sheet metal cylindrical inverted bell open at its bottom and closed at its top, said bell surrounding the upper end of the the internal area of the bell in cross-section being twice the internal area of the base at its top, and the vertical'distance between the top edge of the base and the underside of the top of the bell being one-fourth the internal diameter of the base at its top.

' 2. A reed organ pipe having a resonator comprisinga conical base open at top and bottom with its large end uppermost, and a cylindrical bell open at its bottom and closed at its top, said bell surrounding the upper end of the base and being supported thereby, the internal area of the bell in cross-section being twice the internal area of the base at its top, and the vertical distance between the top edge of the base and the underside of the top of the bell being one-fourth the internal diameter of the base at its top.

A reed or an pipe having a boot with a wind outlet thi hugh the reed and to the resoternal area of the base at its top, and there being a space between the top of the bell and the top of the base. I

4:. A reed organ pipe having a boot with a wind outlet through the reed and to the resonator but'otl'1erwise clpsed at its top; and a resonator comprisingh 'eonical base open at top andbottom with its large end uppermost, and a cylindrical bell open at its bot tom and closed at its top, said bell surround=.

mg the upper end of the base and the in ternal area of the hell in cross-section being greater than the external meant the base at its top, and there being a space between the top of the bell and the top of the base.

5. A reed organ pipe having a boot with a' wind outlet through the reed and to the resonator but otherwise closed at its top; and a resonator coniprising a base 0 en at top and bottom, and a closed-top bel surrounding the upper end of the base, the bell being of greater dimensions laterally than the top of the base, and there being a space between the top of the bell and the top of the base.

6. A reed organ pipe having a resonator comprising a base open at top and bottom and a hell with an open bottom and an integral closed top, said bell surrounding the base and being supported thereby,

I a wind outlet throng municate.

7. A reed organ pi e having a boot with the reed and to the resonator but otherwise closed at its top; and a resonator comprising a tubular base open at top and bottom, and a closed-top bell surrounding the top of the base and communicating at its upper end with the interior of the base. a

8. A reed organ pipe having a boot with a wind outlet through the reed and to the resonator but otherwise closed at its top; and a resonator with two lengthwise extending chambers alongside each other and separated from each other by a common well only and communicatin directly with each other at their upper en s only. a

In witness whereof, I have hereunto si ned witnesses.

. WILLIAM E. HASKELL.

Witnesses:

' H. F. C. Fonnr,

L. W. HAWLEY.

my name 1n the presence of two subscribing,

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